From jrr at flippers.com Fri Jan 11 20:25:19 2019 From: jrr at flippers.com (John Robertson) Date: Fri, 11 Jan 2019 17:25:19 -0800 Subject: [Techtoolslist] ADDR ERROR @ XXXXh - LOOP? Message-ID: <655fb50d-f9f4-8f81-d0a3-089ae0bda884@flippers.com> And here is a new one for me, don't recall seeing that error message before, nor can I find reference to it in the 9010A Operator Manual. Pressing the MORE key gives me "ADDR BITS 0100 - LOOP?" so I assumed this was some sort of a decode issue and will proceed accordingly. Just thought I would post it here in case anyone else runs across this rare error message which I assume was added to the 3A ROMs in the 9010, but not to the manual - at least the copy I have... (later) It was indeed a problem with some address lines. For only A7 and A8 when loop reading @ 0000 (easiest - all should be Low) with the 9010 probe (set to Address) the Low light was flickering, not steady Low. Turned out to be a 74LS367 that had two inputs that were somehow pulling the lines slightly high. This did not show up when doing a ROM or BUSS test - only in either of the RAM tests. FYI John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From tony at tonyjones.com Wed Jan 16 15:02:51 2019 From: tony at tonyjones.com (Tony Jones) Date: Wed, 16 Jan 2019 12:02:51 -0800 Subject: [Techtoolslist] WTD: 9100 drive bay/bracket Message-ID: Hi I'm looking for the metal drive bay/bracket (that holds the hard drive and floppy). Just the metal bracket. Don't need the drives ;-) It needs to be the 9100 style bracket (the 9105 is different). If anyone have one in their surplus pile please drop me a line. Thanks! pic: https://drive.google.com/file/d/1KJYW4_lz33MpCiW9dOKvgbDK11-j3s29 From tony at tonyjones.com Wed Jan 23 16:55:05 2019 From: tony at tonyjones.com (Tony Jones) Date: Wed, 23 Jan 2019 13:55:05 -0800 Subject: [Techtoolslist] FS: NOS Fluke 8088 pod Message-ID: NOS Fluke 9000a-8088 pod. I cut open the box to take these pictures: https://drive.google.com/drive/folders/1YmqSuz-kNK3WkxFgdJFQtR_TkZOz19Og includes the manual, quick reference card and the sealed 7201 probable adapter $160 PayPal gift plus shipping. From troxelone at yahoo.com Thu Feb 7 06:09:54 2019 From: troxelone at yahoo.com (Theron Troxel) Date: Thu, 07 Feb 2019 11:09:54 +0000 (UTC) Subject: [Techtoolslist] Durable solution Message-ID: <4b080569a9e1$5b91b326$399729ab$@yahoo.com> You should definitely try it https://u2051607.ct.sendgrid.net/wf/click?upn=GXw0mRu-2BhXQr1-2BLdTuR12rdsrh9TE4wcwPcL3U3nBk8wbEG3pAXXd-2BkNwozsV8qz_P-2BH0gXbjGsFRX1pB870bGC2mUjqe0ogyJQQA-2FpqXUMPby5ML3d9G0wfLjPSu8PDa4D4VsfY40CjwZBLDR3FtLcsAJRzJwbxNZgWnIe0aoS2T78YGmHHF1Q6j1tKKRKUyVv6UGw1O5M0h-2BVWIrV-2FzV6XS3zxpWU6jhEgRRNUVWUMubN1hALFA6nrtjMk1zRXciw2W55hPU3nZXhToKbQ7M-2FKxZEU56EgAFRlE5G5og90-3D Theron Troxel From jrr at flippers.com Thu Feb 7 12:18:56 2019 From: jrr at flippers.com (John Robertson) Date: Thu, 7 Feb 2019 09:18:56 -0800 Subject: [Techtoolslist] Fwd: Durable solution In-Reply-To: <4b080569a9e1$5b91b326$399729ab$@yahoo.com> References: <4b080569a9e1$5b91b326$399729ab$@yahoo.com> Message-ID: <0a1ab13f-06bb-8a76-678c-2747a655e40f@flippers.com> Obviously a bad message. In case any of the clever folks here are interested in figuring out where it may have come from here are the complete headers... John :-#)# -------- Forwarded Message -------- From: 16 2019 <> X-Account-Key: account3 X-UIDL: 0005c39d490f4b81 X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 X-Mozilla-Keys: Return-Path: Delivered-To: flip-flippers:com-jrr at flippers.com X-Envelope-To: jrr at flippers.com Received: (qmail 66015 invoked from network); 7 Feb 2019 12:10:31 -0000 Received: from mailwash39.pair.com (66.39.2.39) by marbuta.pair.com with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted); 7 Feb 2019 12:10:31 -0000 Received: from localhost (localhost [127.0.0.1]) by mailwash39.pair.com (Postfix) with SMTP id C345B14D1A21 for ; Thu, 7 Feb 2019 07:10:30 -0500 (EST) X-Virus-Check-By: mailwash39.pair.com X-Spam-Check-By: mailwash39.pair.com X-Spam-Status: No, hits=2.2 required=3.0 tests=BAYES_00,DKIM_INVALID,DKIM_SIGNED,FORGED_MSGID_YAHOO,MAILING_LIST_MULTI,RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_INVSIP,SPF_PASS,TVD_SPACE_RATIO autolearn=no autolearn_force=no version=3.004002 X-Spam-Flag: NO X-Spam-Level: ** X-Spam-Filtered: cefc94aa27ec29b6f5a1338365c6e241 Received: from localhost (localhost [127.0.0.1]) by mailwash39.pair.com (Postfix) with SMTP id 283D914D1A0C for ; Thu, 7 Feb 2019 07:10:30 -0500 (EST) Received: from seven.pairlist.net (seven.pairlist.net [209.68.2.241]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mailwash39.pair.com (Postfix) with ESMTPS for ; Thu, 7 Feb 2019 07:10:30 -0500 (EST) Received: from seven.pairlist.net (localhost [127.0.0.1]) by seven.pairlist.net (Postfix) with ESMTP id DFAA0A5FAF; Thu, 7 Feb 2019 07:10:29 -0500 (EST) X-Original-To: techtoolslist at lists7.flippers.com Delivered-To: techtoolslist at seven.pairlist.net Received: from marbuta.pair.com (marbuta.pair.com [209.68.5.151]) by seven.pairlist.net (Postfix) with ESMTP id 3CD2EA5FA6 for ; Thu, 7 Feb 2019 07:10:28 -0500 (EST) Received: (qmail 65978 invoked by uid 3455); 7 Feb 2019 12:10:28 -0000 Delivered-To: flip-flippers:com-techtoolslist at flippers.com Received: (qmail 65975 invoked from network); 7 Feb 2019 12:10:28 -0000 Received: from mailwash39.pair.com (66.39.2.39) by marbuta.pair.com with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted); 7 Feb 2019 12:10:28 -0000 Received: from localhost (localhost [127.0.0.1]) by mailwash39.pair.com (Postfix) with SMTP id CFD8114D1A0C for ; Thu, 7 Feb 2019 07:10:27 -0500 (EST) X-Virus-Check-By: mailwash39.pair.com Received: from localhost (localhost [127.0.0.1]) by mailwash39.pair.com (Postfix) with SMTP id AB4D514D1A0A for ; Thu, 7 Feb 2019 07:10:27 -0500 (EST) Received-SPF: pass (sendgrid.net: 167.89.100.128 is authorized to use 'bounces+2051607-007e-techtoolslist=flippers.com at sendgrid.net' in 'mfrom' identity (mechanism 'ip4:167.89.0.0/17' matched)) receiver=mailwash39.pair.com; identity=mailfrom; envelope-from="bounces+2051607-007e-techtoolslist=flippers.com at sendgrid.net"; helo=o2.3le.shared.sendgrid.net; client-ip=167.89.100.128 Received: from o2.3le.shared.sendgrid.net (o2.3le.shared.sendgrid.net [167.89.100.128]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mailwash39.pair.com (Postfix) with ESMTPS for ; Thu, 7 Feb 2019 07:10:27 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=sendgrid.net; h=from:to:subject:mime-version:content-type; s=smtpapi; bh=umMfyjrtYdz8FfQrJMY4mT4L56s=; b=SQwCnlmu9fbDf3YwG7A8D/XreWH95 Ph28wxzvPguRFYmpZVzCJwC0c3IvH0QKrYRZ0dz3AAEQrhTBlNv7lJMREvF8D2Xi Yx7aJjxQMPysBcPcz/JdTBUcxijMD0tyzbmlRcHTEuskL0GIcMZuexBAo6+4r6Cx gdWCXIBbL6yn94= Received: by filter0058p3las1.sendgrid.net with SMTP id filter0058p3las1-16830-5C5C1201-18 2019-02-07 11:09:53.738081739 +0000 UTC m=+144532.753564031 Received: from www-hk.lemontre.es (unknown [47.244.126.24]) by ismtpd0004p1hnd1.sendgrid.net (SG) with ESMTP id AQDMdSZlRF-IHf5kpSIjXA Thu, 07 Feb 2019 11:09:53.541 +0000 (UTC) Received: from [14.162.174.13] (helo=mail.cheemoproduction.com) by www-hk.lemontre.es with esmtpa (Exim 4.91) (envelope-from ) id 1grhYn-0000A7-8B; Thu, 07 Feb 2019 19:09:52 +0800 To: techtoolslist , trends , zabanitu Date: Thu, 07 Feb 2019 11:09:54 +0000 (UTC) Message-ID: <4b080569a9e1$5b91b326$399729ab$@yahoo.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AYblEWHWB29sMDJjdWlkNWQ0Y2gwdw== Content-Language: en-us X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-SG-EID: Q9SL2D5Zr10pyfO+c+t7rR6ZxRouMYRZujQtGwtv4K4aSAwFRam0nHAreBNk6zF32E3Sm5L2cop6PN kPzA0g5q7nYpE06jfaX96tC8hmrwxRowrYiOIPZYc/Wjv2/5Ob0y0BX9kAoq00Gt60iEAXv2cqliV6 OiKpZI88MTOZYH7NkWnideeWBFVowPegc7Yy0IIWJL5oiAExyDTsbsYmGidSDTIVRuj5BPUcQNMaB1 Q= X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: [Techtoolslist] Durable solution X-BeenThere: techtoolslist at flippers.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Tools Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Theron Troxel via Techtoolslist Reply-To: Technical Tools Mail List Cc: Theron Troxel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: techtoolslist-bounces at flippers.com Sender: "Techtoolslist" You should definitely try it https://.....(well, no, don't go there - JR!) Theron Troxel _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From matt at rossiters.com Wed Feb 13 13:08:41 2019 From: matt at rossiters.com (Matthew Rossiter) Date: Wed, 13 Feb 2019 10:08:41 -0800 Subject: [Techtoolslist] Problems with Tektronix 475 Scope Message-ID: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> Hi Everyone, I'm starting to have some issues with my Tektronix 475 scope where after it warms up for about 5-10 minutes the beam goes out. If I press the ch1/alt/add or ch2 buttons I see the beam flash on/off.? Same if I turn the trigger or delay knobs it comes in and out. Pushing the chop button brings both ch1/ch2 beams on for some reason.? After a while the beam will come back.?? Letting the scope cool off will normally bring the beam back. Last year I did clean some contacts - this seems to be heat related though.?? Has anyone seen this??? or is there forum out there that someone recommends specifically for old tek scopes? https://youtu.be/GZxO8YkzaBM Thanks! Matt From enginr at windstream.net Wed Feb 13 15:15:41 2019 From: enginr at windstream.net (Dave Riddle (Technical Dept.)) Date: Wed, 13 Feb 2019 15:15:41 -0500 Subject: [Techtoolslist] Problems with Tektronix 475 Scope In-Reply-To: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> References: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> Message-ID: <5C647AED.4000303@windstream.net> Starting point: Check the CRT DC voltages working and then not working. The shifted voltage will point you to the correct area. On 2/13/2019 1:08 PM, Matthew Rossiter wrote: > Hi Everyone, > > I'm starting to have some issues with my Tektronix 475 scope where > after it warms up for about 5-10 minutes the beam goes out. From jrr at flippers.com Wed Feb 13 15:32:07 2019 From: jrr at flippers.com (John Robertson) Date: Wed, 13 Feb 2019 12:32:07 -0800 Subject: [Techtoolslist] Problems with Tektronix 475 Scope In-Reply-To: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> References: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> Message-ID: <5fd80456-a628-d671-ec3e-54685db6b961@flippers.com> Hi Matt, Do you have the Maintenance manual from the FTP /Techtronics section? Have a few service related manuals there... ftp://ttl.arcadetech.org/TTL/Test_Equipment/Tektronix/ I have the operators manual in my 475 that isn't scanned yet...should do it some day I guess. John :-#)# On 2019/02/13 10:08 a.m., Matthew Rossiter wrote: > Hi Everyone, > > I'm starting to have some issues with my Tektronix 475 scope where > after it warms up for about 5-10 minutes the beam goes out. > > If I press the ch1/alt/add or ch2 buttons I see the beam flash > on/off.? Same if I turn the trigger or delay knobs it comes in and out. > > Pushing the chop button brings both ch1/ch2 beams on for some reason.? > After a while the beam will come back.?? Letting the scope cool off > will normally bring the beam back. > > Last year I did clean some contacts - this seems to be heat related > though.?? Has anyone seen this??? or is there forum out there that > someone recommends specifically for old tek scopes? > > https://youtu.be/GZxO8YkzaBM > > Thanks! > > Matt > > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From matt at rossiters.com Wed Feb 13 21:54:18 2019 From: matt at rossiters.com (Matthew Rossiter) Date: Wed, 13 Feb 2019 18:54:18 -0800 Subject: [Techtoolslist] Problems with Tektronix 475 Scope In-Reply-To: <5fd80456-a628-d671-ec3e-54685db6b961@flippers.com> References: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> <5fd80456-a628-d671-ec3e-54685db6b961@flippers.com> Message-ID: I do have a hard copy of the service manual, which has a long list of "Voltage & Waveform" pages.? Based on Dave Riddle's suggestion I'll go straight to the CRT Circuit page and see what I can find. It's nice they have an internal trigger source to test with. Otherwise I do happen to have a function generator handy. Matt On 2/13/2019 12:32 PM, John Robertson wrote: > Hi Matt, > > Do you have the Maintenance manual from the FTP /Techtronics section? > Have a few service related manuals there... > > ftp://ttl.arcadetech.org/TTL/Test_Equipment/Tektronix/ > > I have the operators manual in my 475 that isn't scanned yet...should > do it some day I guess. > > John :-#)# > > On 2019/02/13 10:08 a.m., Matthew Rossiter wrote: >> Hi Everyone, >> >> I'm starting to have some issues with my Tektronix 475 scope where >> after it warms up for about 5-10 minutes the beam goes out. >> >> If I press the ch1/alt/add or ch2 buttons I see the beam flash >> on/off.? Same if I turn the trigger or delay knobs it comes in and out. >> >> Pushing the chop button brings both ch1/ch2 beams on for some >> reason.? After a while the beam will come back.?? Letting the scope >> cool off will normally bring the beam back. >> >> Last year I did clean some contacts - this seems to be heat related >> though.?? Has anyone seen this??? or is there forum out there that >> someone recommends specifically for old tek scopes? >> >> https://youtu.be/GZxO8YkzaBM >> >> Thanks! >> >> Matt >> >> _______________________________________________ >> Techtoolslist mailing list >> Techtoolslist at flippers.com >> https://pairlist7.pair.net/mailman/listinfo/techtoolslist >> FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment >> Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > > From jrr at flippers.com Thu Feb 14 12:32:54 2019 From: jrr at flippers.com (John Robertson) Date: Thu, 14 Feb 2019 09:32:54 -0800 Subject: [Techtoolslist] Problems with Tektronix 475 Scope In-Reply-To: References: <527ee805-f619-b1dc-88b6-07ac35c84351@rossiters.com> <5fd80456-a628-d671-ec3e-54685db6b961@flippers.com> Message-ID: On 2019/02/13 6:54 p.m., Matthew Rossiter wrote: > I do have a hard copy of the service manual, which has a long list of > "Voltage & Waveform" pages.? Based on Dave Riddle's suggestion I'll go > straight to the CRT Circuit page and see what I can find. > > It's nice they have an internal trigger source to test with. Otherwise > I do happen to have a function generator handy. > > Matt > In one of the docs on TTL I saw a very nice test PCB from Tek that gave ramps, etc. Anyone have that board? ftp://ttl.arcadetech.org/TTL/Test_Equipment/Tektronix/Tektronix-Scope-Tester.pdf Would be nice to make up, or is something like that readily available? John :-#)# > > On 2/13/2019 12:32 PM, John Robertson wrote: >> Hi Matt, >> >> Do you have the Maintenance manual from the FTP /Techtronics section? >> Have a few service related manuals there... >> >> ftp://ttl.arcadetech.org/TTL/Test_Equipment/Tektronix/ >> >> I have the operators manual in my 475 that isn't scanned yet...should >> do it some day I guess. >> >> John :-#)# >> >> On 2019/02/13 10:08 a.m., Matthew Rossiter wrote: >>> Hi Everyone, >>> >>> I'm starting to have some issues with my Tektronix 475 scope where >>> after it warms up for about 5-10 minutes the beam goes out. >>> >>> If I press the ch1/alt/add or ch2 buttons I see the beam flash >>> on/off.? Same if I turn the trigger or delay knobs it comes in and out. >>> >>> Pushing the chop button brings both ch1/ch2 beams on for some >>> reason.? After a while the beam will come back.?? Letting the scope >>> cool off will normally bring the beam back. >>> >>> Last year I did clean some contacts - this seems to be heat related >>> though.?? Has anyone seen this??? or is there forum out there that >>> someone recommends specifically for old tek scopes? >>> >>> https://youtu.be/GZxO8YkzaBM >>> >>> Thanks! >>> >>> Matt >>> >>> _______________________________________________ >>> Techtoolslist mailing list >>> Techtoolslist at flippers.com >>> https://pairlist7.pair.net/mailman/listinfo/techtoolslist >>> FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment >>> Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ >> >> > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From andy at andysarcade.net Sun Feb 17 12:56:40 2019 From: andy at andysarcade.net (Andrew Welburn) Date: Sun, 17 Feb 2019 09:56:40 -0800 Subject: [Techtoolslist] Fluke z8000 pod manual? Message-ID: <96022c6c-b815-92a4-df7c-6872d6d82397@andysarcade.net> hi all, Has anyone got a manual for the z8000 pod? i check the TTL FTP but didn't see it. I have a pod, purchased as guaranteed working - but it doesn't pass self-test, and i get spurious random errors reported, a lot of the time is is "~DS pin 17 not driveable" but i get others too. thanks! -- Andrew Welburn andys-arcade From jrr at flippers.com Sun Feb 17 14:09:59 2019 From: jrr at flippers.com (John Robertson) Date: Sun, 17 Feb 2019 11:09:59 -0800 Subject: [Techtoolslist] Fluke z8000 pod manual? In-Reply-To: <96022c6c-b815-92a4-df7c-6872d6d82397@andysarcade.net> References: <96022c6c-b815-92a4-df7c-6872d6d82397@andysarcade.net> Message-ID: <3BF4D425-9736-4A69-AC37-8E2DC08F4FD7@flippers.com> Hi Andy, I know I have a PDF of the manual and will check when I get home to my shop computer. Will then check to make sire it is on the FTP and put up a link. I made adapter cards for the Z8002 and have a couple still available... John :-#)# John?s Jukes Ltd. www.flippers.com > On Feb 17, 2019, at 9:56 AM, Andrew Welburn wrote: > > hi all, > > Has anyone got a manual for the z8000 pod? i check the TTL FTP but didn't see it. > > I have a pod, purchased as guaranteed working - but it doesn't pass self-test, and i get spurious random errors reported, a lot of the time is is "~DS pin 17 not driveable" but i get others too. > > thanks! > > -- > Andrew Welburn > andys-arcade > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From jrr at flippers.com Sun Feb 17 15:51:14 2019 From: jrr at flippers.com (John Robertson) Date: Sun, 17 Feb 2019 12:51:14 -0800 Subject: [Techtoolslist] Fluke z8000 pod manual? In-Reply-To: <96022c6c-b815-92a4-df7c-6872d6d82397@andysarcade.net> References: <96022c6c-b815-92a4-df7c-6872d6d82397@andysarcade.net> Message-ID: <638ff617-7e2c-34d7-ba00-6c402677c5d6@flippers.com> On 2019/02/17 9:56 a.m., Andrew Welburn wrote: > hi all, > > ?Has anyone got a manual for the z8000 pod? i check the TTL FTP but > didn't see it. > > ?I have a pod, purchased as guaranteed working - but it doesn't pass > self-test, and i get spurious random errors reported, a lot of the > time is is "~DS pin 17 not driveable" but i get others too. > > ?thanks! > Hi Andy, Is it slightly buried in the Pdfs section of the pods: ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9XXX%20Pods/Pdfs/9000A-Z8000Pod.pdf Easy to overlook! John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From jrr at flippers.com Thu Feb 21 15:44:23 2019 From: jrr at flippers.com (John Robertson) Date: Thu, 21 Feb 2019 12:44:23 -0800 Subject: [Techtoolslist] Orion Instruments - Unilab 8620 Universal Development Laboratory Message-ID: Does anyone have the manual for this device? I have two pod kits for it - the 8088 and the 8031 - but was hoping that this thing actually did EPROM emulation as well. I suspect the emulation is only for the kits though. The only docs I have are for the 8088 and 8031 kits. Not sure if this thing is of any use these days, but it is nice to have the manual(s)... Thanks! John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From davids at oz.net Thu Mar 7 23:21:34 2019 From: davids at oz.net (David Shoemaker) Date: Thu, 7 Mar 2019 20:21:34 -0800 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? Message-ID: <008501d4d566$6b437330$41ca5990$@oz.net> Have run out of these and haven't found anywhere better than $0.36 each. Anyone have a more cost effective source? Looking to buy 100+ David From jrr at flippers.com Fri Mar 8 12:18:16 2019 From: jrr at flippers.com (John Robertson) Date: Fri, 8 Mar 2019 09:18:16 -0800 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: <008501d4d566$6b437330$41ca5990$@oz.net> References: <008501d4d566$6b437330$41ca5990$@oz.net> Message-ID: On 2019/03/07 8:21 p.m., David Shoemaker wrote: > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ > > > > David Digikey (Canadian store) has them for $0.33CAD in 100s: https://www.digikey.ca/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 I'm sure the US version will be cheaper... John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From bradg at digitalplains.net Fri Mar 8 13:00:01 2019 From: bradg at digitalplains.net (Brad Gass) Date: Fri, 8 Mar 2019 12:00:01 -0600 (CST) Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net> Message-ID: <1709608134.306803.1552068001140.JavaMail.zimbra@digitalplains.net> https://www.digikey.com/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 - $0.2535ea @ 100pcs https://www.mouser.com/ProductDetail/Bel-Fuse/3SB-25-R?qs=sGAEpiMZZMtxU2g%2F1juGqdOFGo22YdioZMHDdM64IYp4PzWqAeAmDA%3D%3D - $0.233ea @ 100pcs Or, you can periodically try searching https://octopart.com/ or https://www.usbid.com or https://www.eciaauthorized.com and see what might be available on the grey market, but they typically want to deal in higher quantities. ----- Original Message ----- From: "John Robertson" To: "Technical Tools Mail List" Sent: Friday, March 8, 2019 11:18:16 AM Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On 2019/03/07 8:21 p.m., David Shoemaker wrote: > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ > > > > David Digikey (Canadian store) has them for $0.33CAD in 100s: https://www.digikey.ca/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 I'm sure the US version will be cheaper... John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From tony at tonyjones.com Fri Mar 8 13:18:06 2019 From: tony at tonyjones.com (Tony Jones) Date: Fri, 8 Mar 2019 10:18:06 -0800 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: <008501d4d566$6b437330$41ca5990$@oz.net> References: <008501d4d566$6b437330$41ca5990$@oz.net> Message-ID: On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: > > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ I know you're running an arcade but you're blowing 2.5A fuses at a rate that requires you buy in bulk? Realize this is a tangent but I'm curious what games/failures are leading to all these blown fuses? From jess at askey.org Fri Mar 8 14:11:14 2019 From: jess at askey.org (Jess Askey) Date: Fri, 8 Mar 2019 19:11:14 +0000 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net>, Message-ID: Nah, you got it all wrong.. David has just slowly become addicted to hooking them up to his power supply and popping them while screaming "I've got the power!" Sorry, it has been a long work week and im a bit punchy! :-) ________________________________ From: Techtoolslist on behalf of Tony Jones Sent: Friday, March 8, 2019 11:18:06 AM To: Technical Tools Mail List Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: > > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ I know you're running an arcade but you're blowing 2.5A fuses at a rate that requires you buy in bulk? Realize this is a tangent but I'm curious what games/failures are leading to all these blown fuses? _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From jrr at flippers.com Fri Mar 8 14:17:14 2019 From: jrr at flippers.com (John Robertson) Date: Fri, 8 Mar 2019 11:17:14 -0800 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net> Message-ID: <2aa9b3ae-088a-92a7-d887-c62212dc5bdd@flippers.com> On 2019/03/08 10:18 a.m., Tony Jones wrote: > On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: >> Have run out of these and haven't found anywhere better than $0.36 each. >> Anyone have a more cost effective source? Looking to buy 100+ > I know you're running an arcade but you're blowing 2.5A fuses at a > rate that requires you buy in bulk? > Realize this is a tangent but I'm curious what games/failures are > leading to all these blown fuses? Mostly used in Williams pinball games for the solenoids... For testing we use a circuit breaker or a small light bulb instead of popping fuses - to each his own! (ducking). John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From davids at oz.net Fri Mar 8 16:57:54 2019 From: davids at oz.net (David Shoemaker) Date: Fri, 8 Mar 2019 21:57:54 +0000 (UTC) Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: <1709608134.306803.1552068001140.JavaMail.zimbra@digitalplains.net> References: <008501d4d566$6b437330$41ca5990$@oz.net> <1709608134.306803.1552068001140.JavaMail.zimbra@digitalplains.net> Message-ID: Ok I feel kind of dumb.? Didn't even think to look at the primary component houses..... Get Outlook for Android On Fri, Mar 8, 2019 at 10:09 AM -0800, "Brad Gass" wrote: https://www.digikey.com/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 - $0.2535ea @ 100pcs https://www.mouser.com/ProductDetail/Bel-Fuse/3SB-25-R?qs=sGAEpiMZZMtxU2g%2F1juGqdOFGo22YdioZMHDdM64IYp4PzWqAeAmDA%3D%3D - $0.233ea @ 100pcs Or, you can periodically try searching https://octopart.com/ or https://www.usbid.com or https://www.eciaauthorized.com and see what might be available on the grey market, but they typically want to deal in higher quantities. ----- Original Message ----- From: "John Robertson" To: "Technical Tools Mail List" Sent: Friday, March 8, 2019 11:18:16 AM Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On 2019/03/07 8:21 p.m., David Shoemaker wrote: > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ > > > > David Digikey (Canadian store) has them for $0.33CAD in 100s: https://www.digikey.ca/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 I'm sure the US version will be cheaper... John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From jrr at flippers.com Fri Mar 8 17:37:42 2019 From: jrr at flippers.com (John Robertson) Date: Fri, 8 Mar 2019 14:37:42 -0800 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net> <1709608134.306803.1552068001140.JavaMail.zimbra@digitalplains.net> Message-ID: <96ab6da5-b0a3-0c11-7243-290b8d22b9f2@flippers.com> On 2019/03/08 1:57 p.m., David Shoemaker wrote: > Ok I feel kind of dumb.? Didn't even think to look at the primary > component houses..... > > I am a bit leery of the discount places for something as important as fuses...there is this place called allfuses.com, but I am always ordering from the big guys anyway where I can. I know the parts I get at DK, Mouser, Element, will not have to be tested when they arrive! Hmm, not such a? good deal at allfuses: https://www.allfuses.com/mdl-2-1-2-r John :-#)# > > > > On Fri, Mar 8, 2019 at 10:09 AM -0800, "Brad Gass" > > wrote: > > https://www.digikey.com/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 - $0.2535ea @ 100pcs > https://www.mouser.com/ProductDetail/Bel-Fuse/3SB-25-R?qs=sGAEpiMZZMtxU2g%2F1juGqdOFGo22YdioZMHDdM64IYp4PzWqAeAmDA%3D%3D - $0.233ea @ 100pcs > > Or, you can periodically try searching https://octopart.com/ or https://www.usbid.com or https://www.eciaauthorized.com and see what might be available on the grey market, but they typically want to deal in higher quantities. > > ----- Original Message ----- > From: "John Robertson"To: "Technical Tools Mail List" Sent: Friday, March 8, 2019 > 11:18:16 AM Subject: Re: [Techtoolslist] bulk source for 2.5A slow > blow fuses? On 2019/03/07 8:21 p.m., David Shoemaker wrote: > Have > run out of these and haven't found anywhere better than $0.36 > each. > Anyone have a more cost effective source? Looking to buy > 100+ > > > > David Digikey (Canadian store) has them for $0.33CAD > in 100s: > https://www.digikey.ca/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 > I'm sure the US version will be cheaper... John :-#)# -- How to > subscribe or unsubscribe from TTL > http://seven.pairlist.net/mailman/listinfo/techtoolslist > _______________________________________________ Techtoolslist > mailing list Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site > is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: > http://seven.pairlist.net/pipermail/techtoolslist/ > _______________________________________________ Techtoolslist > mailing list Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site > is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: > http://seven.pairlist.net/pipermail/techtoolslist/ > -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From davids at oz.net Sun Mar 10 18:56:26 2019 From: davids at oz.net (David Shoemaker) Date: Sun, 10 Mar 2019 15:56:26 -0700 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net> Message-ID: <011001d4d794$7ea76be0$7bf643a0$@oz.net> These are the fuses used on flippers in WPC games. Pretty much any time you break a linkage / spring / end of stroke switch etc. and the players keep pounding the flipper trying to fix it you end up blowing the fuse. In general I buy all parts at least at first price break and in general try for second. I end up ordering fuses in the 100's about every 5 years. I just happened to have run out of the 2.5's fixing a bride of pinbot. I hate having to stop working at 2am because I am out of a part :) I also end up splitting my stock between 3 locations, I have my bench (home) supply, my arcade supply and my mobile supply (take to repair calls). I hope to consolidate my bench and arcade supplies at some point (but I have been saying that for 4 years now). -----Original Message----- From: Techtoolslist [mailto:techtoolslist-bounces at flippers.com] On Behalf Of Tony Jones Sent: Friday, March 8, 2019 10:18 AM To: Technical Tools Mail List Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: > > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ I know you're running an arcade but you're blowing 2.5A fuses at a rate that requires you buy in bulk? Realize this is a tangent but I'm curious what games/failures are leading to all these blown fuses? _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From davids at oz.net Sun Mar 10 18:56:51 2019 From: davids at oz.net (David Shoemaker) Date: Sun, 10 Mar 2019 15:56:51 -0700 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: References: <008501d4d566$6b437330$41ca5990$@oz.net>, Message-ID: <011101d4d794$8df4a860$a9ddf920$@oz.net> Damn it Jess, you weren't supposed to tell :) -----Original Message----- From: Techtoolslist [mailto:techtoolslist-bounces at flippers.com] On Behalf Of Jess Askey Sent: Friday, March 8, 2019 11:11 AM To: Technical Tools Mail List Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? Nah, you got it all wrong.. David has just slowly become addicted to hooking them up to his power supply and popping them while screaming "I've got the power!" Sorry, it has been a long work week and im a bit punchy! :-) ________________________________ From: Techtoolslist on behalf of Tony Jones Sent: Friday, March 8, 2019 11:18:06 AM To: Technical Tools Mail List Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: > > Have run out of these and haven't found anywhere better than $0.36 each. > Anyone have a more cost effective source? Looking to buy 100+ I know you're running an arcade but you're blowing 2.5A fuses at a rate that requires you buy in bulk? Realize this is a tangent but I'm curious what games/failures are leading to all these blown fuses? _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From davids at oz.net Sun Mar 10 18:58:12 2019 From: davids at oz.net (David Shoemaker) Date: Sun, 10 Mar 2019 15:58:12 -0700 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: <2aa9b3ae-088a-92a7-d887-c62212dc5bdd@flippers.com> References: <008501d4d566$6b437330$41ca5990$@oz.net> <2aa9b3ae-088a-92a7-d887-c62212dc5bdd@flippers.com> Message-ID: <011201d4d794$bf4dddf0$3de999d0$@oz.net> For testing that is what I will use, but once I have it fixed I need to put a real fuse in. Speaking of light bulb, for those WPC's what type of bulb do you use? I have a set of circuit breakers but never seem to have them handy when I need them. David -----Original Message----- From: Techtoolslist [mailto:techtoolslist-bounces at flippers.com] On Behalf Of John Robertson Sent: Friday, March 8, 2019 11:17 AM To: techtoolslist at flippers.com Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On 2019/03/08 10:18 a.m., Tony Jones wrote: > On Thu, Mar 7, 2019 at 8:21 PM David Shoemaker wrote: >> Have run out of these and haven't found anywhere better than $0.36 each. >> Anyone have a more cost effective source? Looking to buy 100+ > I know you're running an arcade but you're blowing 2.5A fuses at a > rate that requires you buy in bulk? > Realize this is a tangent but I'm curious what games/failures are > leading to all these blown fuses? Mostly used in Williams pinball games for the solenoids... For testing we use a circuit breaker or a small light bulb instead of popping fuses - to each his own! (ducking). John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From davids at oz.net Sun Mar 10 19:00:55 2019 From: davids at oz.net (David Shoemaker) Date: Sun, 10 Mar 2019 16:00:55 -0700 Subject: [Techtoolslist] bulk source for 2.5A slow blow fuses? In-Reply-To: <96ab6da5-b0a3-0c11-7243-290b8d22b9f2@flippers.com> References: <008501d4d566$6b437330$41ca5990$@oz.net> <1709608134.306803.1552068001140.JavaMail.zimbra@digitalplains.net> <96ab6da5-b0a3-0c11-7243-290b8d22b9f2@flippers.com> Message-ID: <011301d4d795$1f795010$5e6bf030$@oz.net> I have been getting 100 lots from ebay out of china, I was suspicious at first so did some testing and they do seem to be pretty well in spec. And have been able to get them a .10 or less each. Just didn't have 2.5 :) Putting an order in with Mouser tonight. David -----Original Message----- From: Techtoolslist [mailto:techtoolslist-bounces at flippers.com] On Behalf Of John Robertson Sent: Friday, March 8, 2019 2:38 PM To: techtoolslist at flippers.com Subject: Re: [Techtoolslist] bulk source for 2.5A slow blow fuses? On 2019/03/08 1:57 p.m., David Shoemaker wrote: > Ok I feel kind of dumb. Didn't even think to look at the primary > component houses..... > > I am a bit leery of the discount places for something as important as fuses...there is this place called allfuses.com, but I am always ordering from the big guys anyway where I can. I know the parts I get at DK, Mouser, Element, will not have to be tested when they arrive! Hmm, not such a good deal at allfuses: https://www.allfuses.com/mdl-2-1-2-r John :-#)# > > > > On Fri, Mar 8, 2019 at 10:09 AM -0800, "Brad Gass" > > wrote: > > https://www.digikey.com/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 - $0.2535ea @ 100pcs > > https://www.mouser.com/ProductDetail/Bel-Fuse/3SB-25-R?qs=sGAEpiMZZMtx > U2g%2F1juGqdOFGo22YdioZMHDdM64IYp4PzWqAeAmDA%3D%3D - $0.233ea @ 100pcs > > Or, you can periodically try searching https://octopart.com/ or https://www.usbid.com or https://www.eciaauthorized.com and see what might be available on the grey market, but they typically want to deal in higher quantities. > > ----- Original Message ----- > From: "John Robertson"To: "Technical Tools Mail List" Sent: Friday, March 8, 2019 > 11:18:16 AM Subject: Re: [Techtoolslist] bulk source for 2.5A slow > blow fuses? On 2019/03/07 8:21 p.m., David Shoemaker wrote: > Have > run out of these and haven't found anywhere better than $0.36 > each. > Anyone have a more cost effective source? Looking to buy > 100+ > > > > David Digikey (Canadian store) has them for $0.33CAD > in 100s: > https://www.digikey.ca/product-detail/en/bel-fuse-inc/3SB-2.5-R/507-1529-ND/1009753 > I'm sure the US version will be cheaper... John :-#)# -- How to > subscribe or unsubscribe from TTL > http://seven.pairlist.net/mailman/listinfo/techtoolslist > _______________________________________________ Techtoolslist > mailing list Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site > is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: > http://seven.pairlist.net/pipermail/techtoolslist/ > _______________________________________________ Techtoolslist > mailing list Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site > is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: > http://seven.pairlist.net/pipermail/techtoolslist/ > -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From davids at oz.net Tue Mar 19 02:39:21 2019 From: davids at oz.net (David Shoemaker) Date: Mon, 18 Mar 2019 23:39:21 -0700 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short Message-ID: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> Have had this item for years and finally figured out what it is good for. Repair Log: Shadow Dancer Sega System 18 PCB Problem 1: Bad sprites in player and other screen objects Reseated Rom board: No change Checked all roms: Matched mame Probed around with logic probe and didn't see anything odd. Saw a clutch hitter on ebay for cheap so picked it up to do some comparisons with as I didn't have any System 18 in my stocks. Tried rom board on CH board. No sprite problems. Went back to original board and still had corruption. Started looking at the board closer, and found a nick in the traces. jumped 4 traces with Kynar wire. Problem solved Problem 2: No sound No sounds at all, but the CPU seemed to be running. Sounds fine if putting the rom board on the CH main. Verified the CPU to be good and the Sound PAL was also good. Started probing around the 74LS244 & 245 and found pin 5 on IC276 ('244) was looking bad. Grabbed my HP Logic comparator and clipped it on. Hit test and Pin 5 bad. As there are no schematics for the System 18 I did some continuity checking to try to figure out where that pin goes, found it goes to pin 2 on the sound PAL. And up to the interconnect for the Rom board. But due to a slipped probe I noticed something else. I was also getting continuity at GND (about 175ohm). And at the +5 rail (3 ohms). Bad 244, shorted internally so I clipped pin 5 and checked continuity again for GND and +5. Same thing. BUGGER. With the trace damage I had seen I thought there was probably a pin touching a trace somewhere. But after more than an hour with a tiny screwdriver and a magnifier I wasn't any better. Did some YouTube research on tracking down shorts. Really didn't like the idea of dropping a few amps down the +5 rail grounded through the pal pin to try and find something warm. I don't have a milliohm meter and they run a couple hundred $. I do have an ESR meter which is a small resistance meter but it wasn't high enough resolution to find it by probing around the board. Found a video on the HP 547A current tracer and using it to track down shorts: https://www.youtube.com/watch?v=Verow5aGL0w I just so happen to have one of these I bought off ebay years ago thinking it might be useful in tracking down vector board problems. But I have never taken it out of the box to date. Ran my logic pulsar output into the +5 rail with the ground of it tied to the sound pal pin 2. Then I was able to adjust the light on the 547A to just showing when touching that pin. Started tracing around the board and picked up the signal near the connector to the rom board. Ran along that area until I found a trace it was running up and followed it a couple inches then BOOM no more signal. There was a chip pin leg right the spot it vanished. Used my little screw driver to lift the pin and no more signal on the trace I was following and nothing at the pal pin 2. Put the rom board back on and sound fixed. Total cost of repair: < $.50 in kynar wire (not counting the Clutch Hitter PCB which I will keep as a ref board for the future) Total time spent: about 4 hours From jrr at flippers.com Tue Mar 19 03:43:47 2019 From: jrr at flippers.com (John Robertson) Date: Tue, 19 Mar 2019 00:43:47 -0700 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> Message-ID: <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> On 2019/03/18 11:39 p.m., David Shoemaker wrote: > Have had this item for years and finally figured out what it is good for. > > > > Problem 2: No sound > > No sounds at all, but the CPU seemed to be running. Sounds fine if putting > the rom board on the CH main. Verified the CPU to be good and the Sound PAL > was also good. > > Started probing around the 74LS244 & 245 and found pin 5 on IC276 ('244) was > looking bad. Grabbed my HP Logic comparator and clipped it on. Hit test > and Pin 5 bad. > > > > As there are no schematics for the System 18 I did some continuity checking > to try to figure out where that pin goes, found it goes to pin 2 on the > sound PAL. And up to the interconnect for the Rom board. > > > > But due to a slipped probe I noticed something else. I was also getting > continuity at GND (about 175ohm). And at the +5 rail (3 ohms). > > Bad 244, shorted internally so I clipped pin 5 and checked continuity again > for GND and +5. Same thing. BUGGER. > > With the trace damage I had seen I thought there was probably a pin touching > a trace somewhere. But after more than an hour with a tiny screwdriver and > a magnifier I wasn't any better. > > > > Did some YouTube research on tracking down shorts. Really didn't like the > idea of dropping a few amps down the +5 rail grounded through the pal pin to > try and find something warm. I don't have a milliohm meter and they run a > couple hundred $. I do have an ESR meter which is a small resistance meter > but it wasn't high enough resolution to find it by probing around the board. > > Found a video on the HP 547A current tracer and using it to track down > shorts: https://www.youtube.com/watch?v=Verow5aGL0w > > I just so happen to have one of these I bought off ebay years ago thinking > it might be useful in tracking down vector board problems. But I have never > taken it out of the box to date. > > Ran my logic pulsar output into the +5 rail with the ground of it tied to > the sound pal pin 2. Then I was able to adjust the light on the 547A to > just showing when touching that pin. Started tracing around the board and > picked up the signal near the connector to the rom board. Ran along that > area until I found a trace it was running up and followed it a couple inches > then BOOM no more signal. There was a chip pin leg right the spot it > vanished. Used my little screw driver to lift the pin and no more signal on > the trace I was following and nothing at the pal pin 2. > > Put the rom board back on and sound fixed. > > > > Total cost of repair: < $.50 in kynar wire (not counting the Clutch Hitter > PCB which I will keep as a ref board for the future) > > Total time spent: about 4 hours > I found a device years ago called the Global Specialties 'Short Squeak' (manual in the FTP archives - see link below) which produces an audio tone that is inversely related to the resistance of the circuit. This is great for finding shorts or low resistance loading - mostly under around around 2 ohms. It looks like a regular probe but has a separate power supply wall wart. You hook the common lead to your common point (often ground, but can be Vcc, etc.) and then run the probe tip along various circuits listening to the pitch change, the pitch gets higher as the resistance lowers between the probe tip and the probe common. ftp://ttl.arcadetech.org/TTL/Test_Equipment/Global%20Specialities/GlobalSpecialities_ShortSqueek_Model_SQ-1.pdf I should make a video of the thing in action I guess, the HP Current Probe video referenced above, is not bad but I think the Short Squeak could be faster...should take it apart and copy out the circuit. John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From douglasgb at mac.com Tue Mar 19 08:47:09 2019 From: douglasgb at mac.com (Douglas Gauck) Date: Tue, 19 Mar 2019 08:47:09 -0400 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> Message-ID: <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> Here are some videos I did about a similar device, the LeakSeeker: https://www.youtube.com/playlist?list=PLVD-zkkSvyEV3OP-3i9BOrzJPfmWqc7pR -Douglas > On Mar 19, 2019, at 3:43 AM, John Robertson wrote: > > On 2019/03/18 11:39 p.m., David Shoemaker wrote: >> Have had this item for years and finally figured out what it is good for. >> >> >> >> Problem 2: No sound >> >> No sounds at all, but the CPU seemed to be running. Sounds fine if putting >> the rom board on the CH main. Verified the CPU to be good and the Sound PAL >> was also good. >> >> Started probing around the 74LS244 & 245 and found pin 5 on IC276 ('244) was >> looking bad. Grabbed my HP Logic comparator and clipped it on. Hit test >> and Pin 5 bad. >> >> >> As there are no schematics for the System 18 I did some continuity checking >> to try to figure out where that pin goes, found it goes to pin 2 on the >> sound PAL. And up to the interconnect for the Rom board. >> >> >> But due to a slipped probe I noticed something else. I was also getting >> continuity at GND (about 175ohm). And at the +5 rail (3 ohms). >> >> Bad 244, shorted internally so I clipped pin 5 and checked continuity again >> for GND and +5. Same thing. BUGGER. >> >> With the trace damage I had seen I thought there was probably a pin touching >> a trace somewhere. But after more than an hour with a tiny screwdriver and >> a magnifier I wasn't any better. >> >> >> Did some YouTube research on tracking down shorts. Really didn't like the >> idea of dropping a few amps down the +5 rail grounded through the pal pin to >> try and find something warm. I don't have a milliohm meter and they run a >> couple hundred $. I do have an ESR meter which is a small resistance meter >> but it wasn't high enough resolution to find it by probing around the board. >> >> Found a video on the HP 547A current tracer and using it to track down >> shorts: https://www.youtube.com/watch?v=Verow5aGL0w >> >> I just so happen to have one of these I bought off ebay years ago thinking >> it might be useful in tracking down vector board problems. But I have never >> taken it out of the box to date. >> >> Ran my logic pulsar output into the +5 rail with the ground of it tied to >> the sound pal pin 2. Then I was able to adjust the light on the 547A to >> just showing when touching that pin. Started tracing around the board and >> picked up the signal near the connector to the rom board. Ran along that >> area until I found a trace it was running up and followed it a couple inches >> then BOOM no more signal. There was a chip pin leg right the spot it >> vanished. Used my little screw driver to lift the pin and no more signal on >> the trace I was following and nothing at the pal pin 2. >> >> Put the rom board back on and sound fixed. >> >> >> Total cost of repair: < $.50 in kynar wire (not counting the Clutch Hitter >> PCB which I will keep as a ref board for the future) >> >> Total time spent: about 4 hours >> > > I found a device years ago called the Global Specialties 'Short Squeak' (manual in the FTP archives - see link below) which produces an audio tone that is inversely related to the resistance of the circuit. This is great for finding shorts or low resistance loading - mostly under around around 2 ohms. It looks like a regular probe but has a separate power supply wall wart. You hook the common lead to your common point (often ground, but can be Vcc, etc.) and then run the probe tip along various circuits listening to the pitch change, the pitch gets higher as the resistance lowers between the probe tip and the probe common. > > ftp://ttl.arcadetech.org/TTL/Test_Equipment/Global%20Specialities/GlobalSpecialities_ShortSqueek_Model_SQ-1.pdf > > I should make a video of the thing in action I guess, the HP Current Probe video referenced above, is not bad but I think the Short Squeak could be faster...should take it apart and copy out the circuit. > > John :-#)# > > -- > How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From wkarkula at comcast.net Tue Mar 19 12:32:17 2019 From: wkarkula at comcast.net (wkarkula at comcast.net) Date: Tue, 19 Mar 2019 11:32:17 -0500 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> Message-ID: <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> That LeakSeeker looks nice. It's one of those tools that you don't use as often but when you need it, it's a godsend and time saver. I have a few different tools like that. I like the audible feedback especially. I'd like to have one. -----Original Message----- From: Techtoolslist On Behalf Of Douglas Gauck via Techtoolslist Sent: Tuesday, March 19, 2019 7:47 AM To: John Robertson ; Technical Tools Mail List Cc: Douglas Gauck Subject: Re: [Techtoolslist] Used HP 547A to find a pin to trace short Here are some videos I did about a similar device, the LeakSeeker: https://www.youtube.com/playlist?list=PLVD-zkkSvyEV3OP-3i9BOrzJPfmWqc7pR -Douglas > On Mar 19, 2019, at 3:43 AM, John Robertson wrote: > > On 2019/03/18 11:39 p.m., David Shoemaker wrote: >> Have had this item for years and finally figured out what it is good for. >> >> >> >> Problem 2: No sound >> >> No sounds at all, but the CPU seemed to be running. Sounds fine if >> putting the rom board on the CH main. Verified the CPU to be good >> and the Sound PAL was also good. >> >> Started probing around the 74LS244 & 245 and found pin 5 on IC276 >> ('244) was looking bad. Grabbed my HP Logic comparator and clipped >> it on. Hit test and Pin 5 bad. >> >> >> As there are no schematics for the System 18 I did some continuity >> checking to try to figure out where that pin goes, found it goes to >> pin 2 on the sound PAL. And up to the interconnect for the Rom board. >> >> >> But due to a slipped probe I noticed something else. I was also >> getting continuity at GND (about 175ohm). And at the +5 rail (3 ohms). >> >> Bad 244, shorted internally so I clipped pin 5 and checked continuity >> again for GND and +5. Same thing. BUGGER. >> >> With the trace damage I had seen I thought there was probably a pin >> touching a trace somewhere. But after more than an hour with a tiny >> screwdriver and a magnifier I wasn't any better. >> >> >> Did some YouTube research on tracking down shorts. Really didn't >> like the idea of dropping a few amps down the +5 rail grounded >> through the pal pin to try and find something warm. I don't have a >> milliohm meter and they run a couple hundred $. I do have an ESR >> meter which is a small resistance meter but it wasn't high enough resolution to find it by probing around the board. >> >> Found a video on the HP 547A current tracer and using it to track >> down >> shorts: https://www.youtube.com/watch?v=Verow5aGL0w >> >> I just so happen to have one of these I bought off ebay years ago >> thinking it might be useful in tracking down vector board problems. >> But I have never taken it out of the box to date. >> >> Ran my logic pulsar output into the +5 rail with the ground of it >> tied to the sound pal pin 2. Then I was able to adjust the light on >> the 547A to just showing when touching that pin. Started tracing >> around the board and picked up the signal near the connector to the >> rom board. Ran along that area until I found a trace it was running >> up and followed it a couple inches then BOOM no more signal. There >> was a chip pin leg right the spot it vanished. Used my little screw >> driver to lift the pin and no more signal on the trace I was following and nothing at the pal pin 2. >> >> Put the rom board back on and sound fixed. >> >> >> Total cost of repair: < $.50 in kynar wire (not counting the Clutch >> Hitter PCB which I will keep as a ref board for the future) >> >> Total time spent: about 4 hours >> > > I found a device years ago called the Global Specialties 'Short Squeak' (manual in the FTP archives - see link below) which produces an audio tone that is inversely related to the resistance of the circuit. This is great for finding shorts or low resistance loading - mostly under around around 2 ohms. It looks like a regular probe but has a separate power supply wall wart. You hook the common lead to your common point (often ground, but can be Vcc, etc.) and then run the probe tip along various circuits listening to the pitch change, the pitch gets higher as the resistance lowers between the probe tip and the probe common. > > ftp://ttl.arcadetech.org/TTL/Test_Equipment/Global%20Specialities/Glob > alSpecialities_ShortSqueek_Model_SQ-1.pdf > balSpecialities_ShortSqueek_Model_SQ-1.pdf> > > I should make a video of the thing in action I guess, the HP Current Probe video referenced above, is not bad but I think the Short Squeak could be faster...should take it apart and copy out the circuit. > > John :-#)# > > -- > How to subscribe or unsubscribe from TTL > http://seven.pairlist.net/mailman/listinfo/techtoolslist > > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ki4swy at gmail.com Tue Mar 19 12:52:46 2019 From: ki4swy at gmail.com (William Stillwell) Date: Tue, 19 Mar 2019 12:52:46 -0400 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> Message-ID: SnortSniffer is very simular to the AIM unit ( https://www.testecvw.com/ ) William Stillwell Board Member - Inspiration labs, Inc. a 501c3 organization Board Member & Co-Founder - Byte Amusement Group // Free Play Florida Arcade & Pinball Show a 501c3 organization On Tue, Mar 19, 2019 at 12:32 PM wrote: > That LeakSeeker looks nice. It's one of those tools that you don't use as > often but when you need it, it's a godsend and time saver. I have a few > different tools like that. I like the audible feedback especially. > I'd like to have one. > > > -----Original Message----- > From: Techtoolslist On Behalf Of > Douglas Gauck via Techtoolslist > Sent: Tuesday, March 19, 2019 7:47 AM > To: John Robertson ; Technical Tools Mail List > > Cc: Douglas Gauck > Subject: Re: [Techtoolslist] Used HP 547A to find a pin to trace short > > Here are some videos I did about a similar device, the LeakSeeker: > > https://www.youtube.com/playlist?list=PLVD-zkkSvyEV3OP-3i9BOrzJPfmWqc7pR > > > -Douglas > > > On Mar 19, 2019, at 3:43 AM, John Robertson wrote: > > > > On 2019/03/18 11:39 p.m., David Shoemaker wrote: > >> Have had this item for years and finally figured out what it is good > for. > >> > >> > >> > >> Problem 2: No sound > >> > >> No sounds at all, but the CPU seemed to be running. Sounds fine if > >> putting the rom board on the CH main. Verified the CPU to be good > >> and the Sound PAL was also good. > >> > >> Started probing around the 74LS244 & 245 and found pin 5 on IC276 > >> ('244) was looking bad. Grabbed my HP Logic comparator and clipped > >> it on. Hit test and Pin 5 bad. > >> > >> > >> As there are no schematics for the System 18 I did some continuity > >> checking to try to figure out where that pin goes, found it goes to > >> pin 2 on the sound PAL. And up to the interconnect for the Rom board. > >> > >> > >> But due to a slipped probe I noticed something else. I was also > >> getting continuity at GND (about 175ohm). And at the +5 rail (3 ohms). > >> > >> Bad 244, shorted internally so I clipped pin 5 and checked continuity > >> again for GND and +5. Same thing. BUGGER. > >> > >> With the trace damage I had seen I thought there was probably a pin > >> touching a trace somewhere. But after more than an hour with a tiny > >> screwdriver and a magnifier I wasn't any better. > >> > >> > >> Did some YouTube research on tracking down shorts. Really didn't > >> like the idea of dropping a few amps down the +5 rail grounded > >> through the pal pin to try and find something warm. I don't have a > >> milliohm meter and they run a couple hundred $. I do have an ESR > >> meter which is a small resistance meter but it wasn't high enough > resolution to find it by probing around the board. > >> > >> Found a video on the HP 547A current tracer and using it to track > >> down > >> shorts: https://www.youtube.com/watch?v=Verow5aGL0w > >> > >> I just so happen to have one of these I bought off ebay years ago > >> thinking it might be useful in tracking down vector board problems. > >> But I have never taken it out of the box to date. > >> > >> Ran my logic pulsar output into the +5 rail with the ground of it > >> tied to the sound pal pin 2. Then I was able to adjust the light on > >> the 547A to just showing when touching that pin. Started tracing > >> around the board and picked up the signal near the connector to the > >> rom board. Ran along that area until I found a trace it was running > >> up and followed it a couple inches then BOOM no more signal. There > >> was a chip pin leg right the spot it vanished. Used my little screw > >> driver to lift the pin and no more signal on the trace I was following > and nothing at the pal pin 2. > >> > >> Put the rom board back on and sound fixed. > >> > >> > >> Total cost of repair: < $.50 in kynar wire (not counting the Clutch > >> Hitter PCB which I will keep as a ref board for the future) > >> > >> Total time spent: about 4 hours > >> > > > > I found a device years ago called the Global Specialties 'Short Squeak' > (manual in the FTP archives - see link below) which produces an audio tone > that is inversely related to the resistance of the circuit. This is great > for finding shorts or low resistance loading - mostly under around around 2 > ohms. It looks like a regular probe but has a separate power supply wall > wart. You hook the common lead to your common point (often ground, but can > be Vcc, etc.) and then run the probe tip along various circuits listening > to > the pitch change, the pitch gets higher as the resistance lowers between > the > probe tip and the probe common. > > > > ftp://ttl.arcadetech.org/TTL/Test_Equipment/Global%20Specialities/Glob > > alSpecialities_ShortSqueek_Model_SQ-1.pdf > > > balSpecialities_ShortSqueek_Model_SQ-1.pdf> > > > > I should make a video of the thing in action I guess, the HP Current > Probe > video referenced above, is not bad but I think the Short Squeak could be > faster...should take it apart and copy out the circuit. > > > > John :-#)# > > > > -- > > How to subscribe or unsubscribe from TTL > > http://seven.pairlist.net/mailman/listinfo/techtoolslist > > > > _______________________________________________ > > Techtoolslist mailing list > > Techtoolslist at flippers.com > > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > > > > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > > > > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > > > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > From tony at tonyjones.com Tue Mar 19 13:32:09 2019 From: tony at tonyjones.com (Tony Jones) Date: Tue, 19 Mar 2019 10:32:09 -0700 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> Message-ID: On Tue, Mar 19, 2019 at 9:32 AM wrote: > > That LeakSeeker looks nice ... I'd like to have one. They were discontinued a while ago. Someone made a repro pcb, details here (also sells them on eBay): https://store.eccentricworkshop.com/index.php?main_page=product_info&cPath=14_15&products_id=3 I thought about building one a while ago but $111 seemed pretty expensive for the parts IMO (plus the cost of the case). I guess if you want the programmed PIC you're paying for everything though I never did followup with EDS to ask if you can just get the PIC. From ki4swy at gmail.com Tue Mar 19 13:49:04 2019 From: ki4swy at gmail.com (William Stillwell) Date: Tue, 19 Mar 2019 13:49:04 -0400 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> Message-ID: EDS is not far from my home.. I bet he just didn't see a draw for his test equipment anymore, face it, not many of us skilled people left William Stillwell Board Member - Inspiration labs, Inc. a 501c3 organization Board Member & Co-Founder - Byte Amusement Group // Free Play Florida Arcade & Pinball Show a 501c3 organization On Tue, Mar 19, 2019 at 1:40 PM Tony Jones via Techtoolslist < techtoolslist at flippers.com> wrote: > On Tue, Mar 19, 2019 at 9:32 AM wrote: > > > > That LeakSeeker looks nice ... I'd like to have one. > > They were discontinued a while ago. > > Someone made a repro pcb, details here (also sells them on eBay): > > https://store.eccentricworkshop.com/index.php?main_page=product_info&cPath=14_15&products_id=3 > > I thought about building one a while ago but $111 seemed pretty > expensive for the parts IMO (plus the cost of the case). I guess if > you want the programmed PIC you're paying for everything though I > never did followup with EDS to ask > if you can just get the PIC. > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > From chris.rinewalt at gmail.com Wed Mar 20 00:20:50 2019 From: chris.rinewalt at gmail.com (Chris Rinewalt) Date: Tue, 19 Mar 2019 21:20:50 -0700 Subject: [Techtoolslist] Used HP 547A to find a pin to trace short In-Reply-To: References: <00eb01d4de1e$83cde140$8b69a3c0$@oz.net> <7606b5d7-31dd-924d-bb2f-87a9b9b81459@flippers.com> <49C2B6AF-726B-479F-96CA-37A951FBFEEA@mac.com> <008e01d4de71$51a0a420$f4e1ec60$@comcast.net> Message-ID: EDS licensed the complete EDS-88A Capanalyzer to Merced Electronics for continued production, and I wondered aloud on KLOV if the EDS-89 would get the same treatment. Peter of arcadepartsandrepair.com indicated they would be producing them sometime this year. On Tue, Mar 19, 2019 at 10:40 AM Tony Jones via Techtoolslist < techtoolslist at flippers.com> wrote: > On Tue, Mar 19, 2019 at 9:32 AM wrote: > > > > That LeakSeeker looks nice ... I'd like to have one. > > They were discontinued a while ago. > > Someone made a repro pcb, details here (also sells them on eBay): > > https://store.eccentricworkshop.com/index.php?main_page=product_info&cPath=14_15&products_id=3 > > I thought about building one a while ago but $111 seemed pretty > expensive for the parts IMO (plus the cost of the case). I guess if > you want the programmed PIC you're paying for everything though I > never did followup with EDS to ask > if you can just get the PIC. > _______________________________________________ > Techtoolslist mailing list > Techtoolslist at flippers.com > https://pairlist7.pair.net/mailman/listinfo/techtoolslist > FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment > Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ > From jrr at flippers.com Tue Mar 26 23:54:57 2019 From: jrr at flippers.com (John Robertson) Date: Tue, 26 Mar 2019 20:54:57 -0700 Subject: [Techtoolslist] 3870 adapter pod for use with 6800 pod Message-ID: I can't believe it - I have had these files (Thanks to Shy!) since 2013 and only now realized I never put them up on TTL. This package from Shy (Navatek) has schematics (unknown format) pictures of the board layout and wiring, PALtoGAL 16V8 code and more... Look for it here if you want to make the adapter PCB: ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9XXX%20Pods/3870_adapter_pod/ I'd buy a board if anyone ever figures it out... John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist From bradg at digitalplains.net Wed Mar 27 16:07:37 2019 From: bradg at digitalplains.net (Brad Gass) Date: Wed, 27 Mar 2019 15:07:37 -0500 (CDT) Subject: [Techtoolslist] 3870 adapter pod for use with 6800 pod In-Reply-To: References: Message-ID: <1284463944.444484.1553717257335.JavaMail.zimbra@digitalplains.net> John / all - the JED files appear to be generated from OrCAD PAL, so my guess is that the schematic was also done in an old version of OrCAD (probably SDT). I honestly don't know if they would open in more modern versions, and even if they did, if they require any custom component libraries it may be a dead end. Even so, I didn't see a board layout file in there... I have a copy of the OrCAD suite from that era somewhere that may open the schematics (library issues not withstanding), but I couldn't say whether the floppies would still read or not (Kryoflux might be my friend there), and am not sure if it's a hardware keyed version or not (we had both keyed and unkeyed versions in college when I was an instructor - they used Rainbow parallel port keys IIRC). It would probably be easier to simply manually re-draw the PCB using the PNG files for reference. Any of the free layout tools should make that fairly straightforward to do - how much interest is there in a replica? ----- Original Message ----- From: "John Robertson" To: "Technical Tools Mail List" Sent: Tuesday, March 26, 2019 10:54:57 PM Subject: [Techtoolslist] 3870 adapter pod for use with 6800 pod I can't believe it - I have had these files (Thanks to Shy!) since 2013 and only now realized I never put them up on TTL. This package from Shy (Navatek) has schematics (unknown format) pictures of the board layout and wiring, PALtoGAL 16V8 code and more... Look for it here if you want to make the adapter PCB: ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9XXX%20Pods/3870_adapter_pod/ I'd buy a board if anyone ever figures it out... John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist at flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ From jrr at flippers.com Wed Mar 27 17:17:16 2019 From: jrr at flippers.com (John Robertson) Date: Wed, 27 Mar 2019 14:17:16 -0700 Subject: [Techtoolslist] 3870 adapter pod for use with 6800 pod In-Reply-To: <1284463944.444484.1553717257335.JavaMail.zimbra@digitalplains.net> References: <1284463944.444484.1553717257335.JavaMail.zimbra@digitalplains.net> Message-ID: <1eab52d2-c883-5e7c-9fcd-4e0f5505514e@flippers.com> On 2019/03/27 1:07 p.m., Brad Gass wrote: > John / all - the JED files appear to be generated from OrCAD PAL, so my guess is that the schematic was also done in an old version of OrCAD (probably SDT). I honestly don't know if they would open in more modern versions, and even if they did, if they require any custom component libraries it may be a dead end. Even so, I didn't see a board layout file in there... > > I have a copy of the OrCAD suite from that era somewhere that may open the schematics (library issues not withstanding), but I couldn't say whether the floppies would still read or not (Kryoflux might be my friend there), and am not sure if it's a hardware keyed version or not (we had both keyed and unkeyed versions in college when I was an instructor - they used Rainbow parallel port keys IIRC). > > It would probably be easier to simply manually re-draw the PCB using the PNG files for reference. Any of the free layout tools should make that fairly straightforward to do - how much interest is there in a replica? Thanks Brad, that might help someone pursue this. I am somewhat interested but have enough projects for the moment. I too was thinking the images will make it fairly easy to build the schematics, etc. I also moved the directory into the /FlukePodAdapters directory as was suggested by Tony (thanks!) and removed a bunch of spaces in various file names to make it easier on my FTP program: ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9XXX%20Pods/FlukePodAdapters/ John :-#)# > > ----- Original Message ----- > From: "John Robertson" > To: "Technical Tools Mail List" > Sent: Tuesday, March 26, 2019 10:54:57 PM > Subject: [Techtoolslist] 3870 adapter pod for use with 6800 pod > > I can't believe it - I have had these files (Thanks to Shy!) since 2013 > and only now realized I never put them up on TTL. > > This package from Shy (Navatek) has schematics (unknown format) pictures > of the board layout and wiring, PALtoGAL 16V8 code and more... > > Look for it here if you want to make the adapter PCB: > > ftp://ttl.arcadetech.org/TTL/Test_Equipment/Fluke/9XXX%20Pods/FlukePodAdapters/ (fixed link) > > I'd buy a board if anyone ever figures it out... > > John :-#)# > -- John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, VideoGames) flippers.com "Old pinballers never die, they just flip out" From ian at retrospec.tv Thu Mar 28 19:21:47 2019 From: ian at retrospec.tv (Ian Eure) Date: Thu, 28 Mar 2019 16:21:47 -0700 Subject: [Techtoolslist] eBay BK Precision 560A Message-ID: <87h8bmtwj8.fsf@axion.earth.atomized.org> Saw this yesterday, looks like it?s sold as of today: https://www.ebay.com/itm/B-K-Precision-Programmable-IC-Tester-Model-PL-560A/401738000718 Did someone here get it? The listing said it had the software to run it, which might also work for the 560 (non-A). That?s something I?d like to see saved, since there are no known copies of it. I messaged the seller to see if they?d be willing to share the software, but never got a reply. -- Ian From joemagiera at ameritech.net Sun Mar 31 10:16:17 2019 From: joemagiera at ameritech.net (Joe Magiera) Date: Sun, 31 Mar 2019 09:16:17 -0500 Subject: [Techtoolslist] Free + shipping, PACE VHS instructional tapes Message-ID: <000001d4e7cc$4ecc8d40$ec65a7c0$@ameritech.net> I have a couple instructional PACE VHS video tapes, TT-65 ThermoTweez and SX-70 Sodr-X-Tractor. Both tapes work fine and appear to be brand new. Hate to just throw them away. If anyone wants them, offering them for free, plus shipping. If interested, please contact me off-list (today please or they get tossed). Thanks, Joe (joemagiera at Ameritech dot net) joemagiera at ameritech.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus