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[Stewart Pye]

Hi...

At 11:05 PM 19/02/2000 EST, WeAreAs1 at aol.com wrote:
>LM324's should work just fine in most of the 808 voice circuits, however, 
>some of the "opamps" found in the 808 handclap circuit are not really
opamps, 
>but rather are comparators (I think Roland used the AN6912 there?).  I'm
talki
>ng about the four stages that create the multiple delayed/staggered handclap 
>trigger pulses.  You can (and should) use a readily-available quad
comparator 
>such as an LM339 for that part of the circuit.
>

Or if you're into micros you could use an 8pin micto such as the ATtiny12 .
This would cut the components count considerably, and add versatility if
you add a user interface. (variable delays)


Stewart.