Cgs synth

> Thanks for the response Richard. I had done the chip swapping when
>I had this on the breadboard and some 4017 would skip steps and
>generally behave erratically. I'll try the TI one, but I'd like to
>see if the circuit could be made to depend less on the type of chip
>being used. back to the BB.
> The gate and full outputs are fine. On a scope, it almost looks
>like the stuttered pulse fires at the same time the Full output
>falls. I'll keep experimenting.

This behaviour would suggest a capacitive coupling inside your envelope
generator. If that really is the case, the only cure would be to use a gate
to trigger converter between the two.

Otherwise, add some power rail decoupling caps around the output chips, one
the back of the PCB directly between the power pins, just in case it is a
PSU coupling issue.

And replace those LM358 with TL072.

Ken

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Ken Stone sasami@... or sasami@...
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