[Amps] Silver-bearing solder? (WAS: Re: Solder flux)

[Jim Barber]

On 8/26/2012 12:18 PM, Mark K5AM wrote:
> At 2012-08-26 15:48, Carl wrote:
>> Many years of hard use might crystalize the solder at the switch and
>> elsewhere in RF paths, it should be removed and fresh solder flowed on.
>
>
>
> More easily, a drop of liquid flux, and reheating, will brighten up
> the connection.
>
> 73,
>
> Mark, K5AM
> www.zianet.com/k5am
Which brings to mind a related question:
What's the latest thinking about using silver-bearing
solder in amp tank circuits? In the US, Radio Shack
sells 62/36/2% tin/lead/silver solder for $7 USD for
a 1.5 oz roll. One roll will do most tank circuits, so
it isn't terribly expensive, relatively speaking.
Is 2% enough silver to make a significant difference
in the ability to withstand thermal cycling and
vibration?

Thanks,
Jim N7CXI