Commerical HVAC boards from 70's, 80s, 90s

Gold Refining Forum

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weedoublewide

Member
Joined
Jan 12, 2020
Messages
13
Good morning,

I have access to a slew of old boards that are no longer needed for service. The outer tracing appears to be a gold finish over the underneath tracing that is copper. Would it be worth my time to pursue the gold refining of these boards? ( Yes I kinda already started lol)

Thank you,


double
 

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