[ARC5] [armyradios] Russian radio construction techniques

[Peter Gottlieb]

Early version of lead-free  ; )

I've seen some GE power electronics modules which LOOK to be soldered but it's 
some super high melting point as a 900 F iron doesn't do a thing.  I had to use 
a torch.  All wire was teflon and all components ceramic.  This wasn't part of a 
heater, it was from a rectifier/inverter unit.

Peter


On 3/30/2016 7:22 PM, Clare Owens clare.owens at gmail.com [armyradios] wrote:
> Hi All,
>
> A friend of mine who collects and restores USA and foreign radios just 
> received a 1958 Russian receiver, model "Iskra 53" and has discovered that in 
> his words, "rather than normal solder all of the component connections are 
> made with brazed copper that must have been done with some sort of hand held 
> copper wire feed arc welder!  In other words, it is impossible to unsolder any 
> joints in the radio!"
>
> Seems pretty odd.  Dave Stinson has suggested that maybe the Stalinists were 
> running short of lead.  Or maybe the radios were meant to be unmodifiable by 
> the common people.
>
> Anybody else seen anything like this?  I can send pix to anyone who wants to 
> see the radio's innards.
>
> Thanks,
>
> Clare
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