[Amps] 3-500z - intermittent filament

[Mike McCarthy, W1NR]

Peter Chadwick wrote:
> There are some higher temperature 'soft solders' around, which don't require the red heat of hard solder. From memory, something called 'comsomal' or similar is about a 300 degree C or so solder. Personally, I much prefer to add cooling air, and use ordinary solder with a heat sink to keep the seals cool.
> 73
> Peter G3RZP
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Pb90 (90% lead) solder is about 300 C.  I have had good luck with "Sb5" 
alloy which is 95% tin and 5% antimony.  It is not the highest of 
melting points at about 240 C but much higher than 60/40 at 185 C .

Mike, W1NR