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[lazydog]

dug this out today, having always thought it was crap (kind of mild filter, on it's own)
and chained it with a distortion pedal, A>B, and B>A...ah, now THAT"S BETTER!!!
it has the possibility of sounding like an Electric Mistress, if i could put something like
an LFO in there, or a CV pedal.
should i offset the pot value or just wire in an extra socket for another CV? won't that
ramp it up to maximum too early?
it is quite an obscure pedal, looking for details online: do you have schems?
i's also like ot know what multipeak means...is that a resonance thing? modulated rez?
ah, here it is: http://www.effectsdatabase.com/model/pearl/soundspice/th20
does some mad stuff with the multipeak and frequency bringing on feedback in a very
pronounced way(on guitar), really needs a mod pedal input!!!
candidate for modding, cost me 5quid ages ago, deserves a place in a rack.

[SineHacker]

It won't be easy fitting it inside a pedal, but I have had some success making LFO by using DIY optocoupling, where you take an LED and heatshrink it to be positioned head to head with a LDR so no light can interfere. The LED can be blinked by a logic chip or anything you want really, audio sources can be interesting. You use the LDR in place of the control pot you want to modulate. I have used XR2206 chips to generate sinewave at low frequencies, but they aren't easy chips to find. Usually knocking around on ebay though not cheap. You can also use a pot in series with the LED to control the depth and with a bit of experimentation you can change the resistance range by adding a pot or resistor in parallel with the LDR

[lazydog]

oh this is getting reboxed 
it's a very tight little board so the schem would be very useful.