PINS IN AP

[NoIdea]

for some reason i always have tin in my solution from pins, even if there's no solder. not sure if bronze is used in the composition of the pins or its used as a shield to keep the gold from migrating to the base metal but the tin is always present. sorry about not making the distinction between brass and bronze. even though i have dealt with bronze in my scrapping days it almost always went into the brass unless it was a large piece like an impeller or propeller and its just a bad habit to refer to bronze as brass.

Some pins are indeed brass or something similar, dicovered this when using nitric acid on solder free pins, yup, tin said hello to me.

Deano