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Posted 08 February 2008 - 09:19 PM
Posted 08 February 2008 - 09:33 PM
Posted 08 February 2008 - 09:54 PM
Posted 08 February 2008 - 11:07 PM
Posted 08 February 2008 - 11:44 PM
Posted 09 February 2008 - 08:57 AM
It's gold. The base metal is so soft and the gold plating is so thin, you can't just scrape of the gold
I saw that on ebay...
So is it platinum? Beat it off or scrape it?
Posted 09 February 2008 - 11:44 AM
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Posted 09 February 2008 - 02:03 PM
Posted 10 February 2008 - 12:46 AM
Posted 30 January 2017 - 01:11 AM
One good source I found is scrap reed switches. A lot of these are still used as they draw no power in use and despite being an electromechanical device are good for 200,000 cycles.
The precious metals are typically found in the leadout wires and switch surfaces, but to get a sensible amount you'd need to find ancient monster units which were far more liberal with the gold than modern ones in some cases a mere 160 would have 1g gold total ($36 worth)
For that matter any large switch such as the PCB mounted ones found in dead VCRs and DVD players should have a fair few gold plated surfaces.
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