n4zr@comcast.net wrote:
> I'm sure John is correct about both the risks of resoldering and the ideal
> solution, but what to do if you have tubes that have already failed from this
> cause?
>
> Using some of Rich Measures' silver solder .....
Sort of answering my own question from yesterday - the 'silver solder'
that Rich supplies is described as Tin-Silver, with 221C melting point.
Tin with .5% Copper and 2-4% silver (MP 218-220C) is now regular pcb
soldering wire - at least in Europe after the 'lead free' rules came in.
More popular as it's much cheaper is Tin + .5-.8% Copper, melting point
225-235C. Plumbers use it too. I find it nasty to use by hand, so I pay
the extra.
Steve
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