[SBE] toxic chemical reminiscences

[Mike Langner]

Got a handful in my garage.

Used to use them with RTTY.

And then there's the vial-of-mercury-switch about the size of half a
test-tube with two electrodes, about an eighth of a cup of mercury, and an
armature that turns it upside-down or right-side up depending on whether the
relay/switch is supposed to be on or off.

I think this one came out of a motorized tower light flasher --

Mike
Albuquerque

  -----Original Message-----
  From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org]On Behalf Of Bush,
Rich
  Sent: Thursday, August 20, 2009 11:07 AM
  To: 'sbe member discussion mail list'
  Subject: Re: [SBE] toxic chemical reminiscences


  Okay, who remembers the mercury "wetted" relays and contactors.  We even
saved the mercury to demonstrate turning pennies silver colored by rubbing
them in mercury and then between you finger and thumb.



  Before solid state power switching, this was the next best thing to an
arc-less power switch.



  Richard E. Bush, CBTE

  Domestic Account Executive

  Quintech Electronics & Communications, Inc.
  250 Airport Road . Indiana, PA 15701 . USA
  E-mail:       rbush at quintechelectronics.com
  Phone:       724.349.1412 ext. 304
                     800.839.3658
  Cell:           724.422.0670
  Fax:            724.349.1421
  Website:    http://www.quintechelectronics.com

  ISO 9001:2008 Certified Quality Management System

  Stay Up To Date: Join Our E-mail List!




----------------------------------------------------------------------------
--

  From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Henry
M. Seiden
  Sent: Thursday, August 20, 2009 11:51 AM
  To: sbe member discussion mail list
  Subject: Re: [SBE] toxic chemical reminiscences



  And when do we get into the lead solder?

  On Aug 20, 2009, at 11:27 , A9xw at cs.com wrote:





  Nothing like being up to your arm pits in PCB to change diode arrays in
the HV tubs. When the folks complained about a teaspoon of PCB polluting the
creek in Bloomington, IN spread over a 30 year periood, and "destroying
their organic gardening" the plant manager drank a glass of PCB and then
said, Any questions?  It was almost as good as the regular protests of the
radioactive chickens under the old stadium.  Meanwhile the coal fired
heating plant C14, and the limestone in the buildings provided thousands of
times more radiation.


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