[Amps] *** SPAM *** Re[2]: Parasitics & Filament Sag now Soldering

Peter Chadwick g3rzp at g3rzp.wanadoo.co.uk
Thu Aug 31 03:00:37 EDT 2006


Will, 
There's also a higher melting point soft solder  called Comsol: goes about 270 C from memory. It's useful for caulking seams and so on in small copper boilers, but I could see uses for it in tank circuits and the like. You do need a hot iron for it, though. Probably one of the really old ones with a great chunk of copper heated in a flame!
Originally, 'brazing' was done with spelter, which is a finely divided brass. You had to be careful with that on copper, because you got dangerously close to the melting point of the copper.
73
Peter G3RZP


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