HP board "gold recovery" garbage

Paul Koning paulkoning at comcast.net
Wed Jan 23 19:46:59 CST 2019



> On Jan 23, 2019, at 8:39 PM, ED SHARPE via cctalk <cctalk at classiccmp.org> wrote:
> 
> tantalum maybe?
> Ed#
> In a message dated 1/23/2019 3:26:40 PM US Mountain Standard Time, cctalk at classiccmp.org writes:
> palladium claim.

Tantalum caps are electrolytic type.  The original reference speaks of multilayer capacitors, those are ceramic.  Wikipedia says that indeed palladium (and silver) were used in early generations of those devices, to be replaced by nickel and copper later on due to cost pressures.

So it's possible.  And today the price per ounce of Pa and Au are about the same.  I wonder how much metal is in ceramic capacitors...

	paul



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