[SBE] RCA Dummy Load

[K7CR]

Dan – 

 

I think I know of the load you are talking about.   I rescued a pair of them from an old RCA FM Parallel Transmitter Config a few years ago.   Put them on casters with a Type-N adaptor etc.

These things are probably made by Bird.    As for frequency – They probably used the same loads for their FM and VHF TV Equipment and, therefore, going to have no issues with HF uses.

Re. Oil – I ordered up some ‘Load Oil’ from Bird – Comes in a 1 gallon can.    

 

Hope helps – If it would help, I can take some pictures of one of them next week when I am at the TX Site.

 

Regards, 

 

Clay Freinwald, K7CR

 

From: SBE [mailto:sbe-bounces at sbe.org] On Behalf Of DanRapak at verizon.net
Sent: Thursday, April 05, 2018 6:02 PM
To: SBE Broadcast Group
Subject: [SBE] RCA Dummy Load

 

All:

I'm looking for information on an old dummy load. I have an old RCA liquid cooled dummy load that's been collecting dust for several years. It is an RCA  P/N 216251. It's a nice unit with substantial heat fins. It's rated at 1 KW continuous and 1.5 KW for 30 minutes. I'm about to put it in service in the ham shack. However, I have no manual for it.

My first question is, does anyone know what the frequency range of this unit is?

Second, there is a two-pin, military style Amphenol connector on the the dummy load. What is the purpose of this connection?

Finally, what is the recommended transformer oil / coolant for this thing?

Any help would be appreciated.

Thanks in advance,
Dan Rapak



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