Gold Plated Silver connectors/multifunction printer.

[Anonymous]

Here I have a board out of a Toshiba DP1870F model multifunction printer with Gold plated Silver connectors from inside the buttons. I am new to all of this. What is the best way to separate the gold from the silver? Thanks everyone!

 

[samuel-a]

i don't belive it is silver underneath , maybe nikel alloy of some kind...
throw it in hot HCL for a week, that should do it.

all that will remain is the gold foils...

 

[glorycloud]

There's not much gold on them but it is gold. I just throw them in the AP
with the gold plated fingers that I am processing. You could put them in
nitric if you use that as well.

It's a lot of labor to get those lttle contact points but I do collect
them when I have a scanner / notebook / etc. open. 8)

 

[Anonymous]

well, nickel is magnetic. and these contacts are not magnetic. thats why i thought it was silver. i have access to about 1000 of these boards, so the gold will add up a little bit. not sure how much. but probably something worth messing with.

 

[samuel-a]

well, if you can count how many of that contacts you have on each board
and the diameter of each size (i have noticed 2 diferent sizes there)
you can get an assay , based on 15-30 micro inch of thickness.