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Yamaha DTXpress/DTXplorer/DTXtreme

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Re: Keiths circuit (piezo peizo/ rim switch) with a roland tmc-6

2005-06-14 by Keith

--- In DTXpress@yahoogroups.com, "Chris Todesco" <desco@m...> wrote:
> Yeah, I dropped R1 to 1.5k..  What makes you think that's low? 

the fact that if the pad puts out 30V you may blow up the transistor!

> My dad does suggest using germanium diodes, as they've got a
> much lower voltage drop than that of regular silicon diodes

try schottky diodes - lower voltage than germanium and you don't have
to find an old valve radio to steal them from ;-)  Just make sure you
buy something with a decent reverse voltage (30V+) becuase some are
quite low voltage.

Keith.

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