[Hallicrafters] off subject / soldering

[Richard Knoppow]

----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "Duane Fischer, W8DBF" <dfischer at usol.com>; 
"'hallicrafters'" <Hallicrafters at mailman.qth.net>
Sent: Tuesday, January 03, 2012 12:24 PM
Subject: Re: [Hallicrafters] off subject / soldering


Duane,

The silver work done by jeweler's is entirely different. 
Most use a
flame, but the melting point for silver itself is 
significantly lower.
Their work usually involves Sterling Silver, i.e., .999 % 
pure.

Their is also silver bearing solder that was used in the old 
Tektronix
535 and such series of oscilloscopes.  That particular type 
of solder
was done with a good old fashioned soldering pencil/iron.

I hope this helps you.

Cheers!
Bob - N0DGN

     When I worked for Hewlett-Packard about a million years 
ago, I used a silver bearing solder for soldering certain at 
the time exotic diodes. The solder was supposed to have a 
lower melting temperature than conventional solder. It may 
have been the same stuff as used by Tektronix but I don't 
know. I used a conventioal but very low powered soldering 
pencil. The main application was replacing the sampling 
diodes in 8451-A vector voltmeter probes.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com