[sdiy] salvaging olg Boards

[Ken Stone]

It's like the old superman episode where they could turn lead into gold. You
can do it, but it will cost you more than the value of the gold you extract. 

To be rather precise, the boards are worth exactly what you would be paing
for them. If they were worth any more, or if the gold was worth extracting,
it would already have happened. Sure, salvage the transistors anyway, but
only if you actually have a use for them. 70's 5% resistors aren't worth having.

oh- if you really do want to remove the gold anyway - scrape it off with a
razor blade. Don't mind the copper atoms that come for the ride. Good gold
alloys usually contain traces of copper anyway.

Ken


>howdy,
>
> Where I work there is a box full of circuit boards
>from the late 60s to early 70s. I've been told I can
>have them. they are choc-a-bloc full of 7400 series
>ICs, TO-18 and TO-39 transistors, gold band resistors
>and card edge connectors that people saw off to
>recover the gold. Aside from carefully removing some
>of the components after IDing them for scarcity, how
>does one go about extracting the gold from the edge
>connectors?
>Rig
>
>
> 
>___________________________________________________________________________
_________
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>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>