Re: rear window defroster

[Orin Eman <orin@wolfenet.com>]

> silver based solder requires a HIGHER temp than standard solder. the higher
> the tin content the lower the melt point. the advantage of silver content
> solder is a much higher mechanical strength than regular solder...so it
> would be ideal for wot switches and such. if you dare to attempt to resolder

Silver solder also has a slightly lower resistance - good for a joint
which is supposed to carry a high current, though probably not
significant for the 2% silver solder commonly sold.

I believe 60-40 has the lowest melting point... I use 63-37 which doesn't
have the 'plastic' stage between molten and solid, but melts at a slightly
higher temp for most work.  I believe I did use the 2% silver on my
WOT switch last time tho'.

Orin.