[sdiy] Time for a NEW string - Piezo Switches!!!

Machinerygod machinerygod at prism.net
Sun Jun 16 23:01:57 CEST 2002


Sunday, June 16, 2002, 12:29:51 AM, you wrote:

BG> I would have suspected that the tiny amount of charge generated by a few 
BG> microns of moment (as they suggest) would not be enough to do anything 
BG> particularly useful with. Let alone power even a micro-power switching 
BG> circuit. And they have a model with a built in relay as well. I mean a 
BG> Mechanical relay.


And therein lies the secret to it. Mechanical relay...a LATCHING
mechanical relay. The peak coming out of the piezo when hit must be
enough to set it.



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