[sdiy] pseudo-random tone generator

[Ian Smith]

> what I DID do though was add CV control, and messed around with having a vclfo mess with the frequency and the patterns. it was wild but took up a big breadboard.
> 
> if this had been pcb i would have built it in a second.

Yeah, I've been thinking PCB...

> IMPORTANT...these buggers ONLY seem to work with +5 volts. i tried it on + 12 and +15 and got nothing. ALSO when i tried interfacing certain VCO's and other modular stuff to them that was being powered by 12

huh.. I've been working off of a 9V battery so far... mind you I've only got a 555C hooked up to a 4020 so it's not anywhere close to the pseudo-random circuit yet.
 
> I was able to use a different opamp though then what he recommended as i didnt have the original one.

What opamps out there work on single supplies?

-Ian
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