In article
,
Pilgrim wrote:

Is that why most, but not all, teflon insulated wire was silver plated?

My guess is that tinned wire is soldered more easily even after much
exposure to unfriendly environments. You do not have any copper oxide to
remove. Any crap in the tin flots away and new solder flows in under
such crap.

Bill

--
Private Profit; Public Poop! Avoid collateral windfall!