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That's not right.. did you try a new mosfet?

I went with 10k cuz it's what I grabbed first. Worked for me. The op amp needs a bit of resistance on the output to guard from oscillation from a capacitive load, but 180k seems OVERkill..

Looks like flash from the mold. There are literally trillions of 2n3904's in the world, no reason to fake 'em. The tolerance on capacitors is much wider than most transistors so I'd check the capacitor😉

Germanium diode is too leaky. Clamped to ground, it dumps all the signal. you could try another low leakage germanium, or low Vf silicon. Something like a BAT 46 would probably work. 2x 1n5817 in series would work well in a pinch.

Is you enclosure sufficiently grounded? The ground connection between board and enclosure is the 1/4" jacks, and the inside is painted. Removing a bit of the paint on the inside around the hole would probably be a good idea, although at best it may only minimize your O.G problem..

I was wondering about the choice of inverting 1st stage, wouldn't non-inverting be somewhat less noisy?

I'm not seeing R10, although there is 2x R8..

THIS!! Weak, board-mounted with no chassis support, and angled slightly upwards?! Wonderful design..

My old Whammy II (I'm old) had a tiny gain knob on the top that went well above unity at max, but always got hit, and turned down randomly. Did they do away with the gain control? It was a great boost..

I argue with my wife all the time that this is, quite probably, the greatest film ever created by the hand of man. She says it sucks balls.

Sounds like dodgy footswitches to me, but definitely give it a touch with the hot stick.

Lol, yeah Stomp Box Parts sell legit stuff.

Are there any parallel resistors to the potentiometers? That would allow the use of non-standard pots. I can imagine a hack thinking 250k would give "more" delay, though. Lots of burned pads as well. Still, I'll bet it's repairable. Needs a good scrubbin'!

Where did you get the chips that are in-circuit in the pic? At first glance, printing seems odd.

Speaking from experience... Those gator clips on your pcb vice can- and will- scratch and damage the traces on that commercial pcb. Wrap the teeth in electrical tape to be safe!

A capacitor couldn't leak enough current to turn on a transistor and still be considered a decent capacitor..:unsure:

No, that schematic would not work as drawn. Maybe a couple of lower value resistors missing, about 1k, maybe less, parallel to C4 and C5? Got a pic of the build? Now I'm curious.. Edit: online schematics are the same, Dirtbox Layouts used it and has a "verified" vero.(1 user reports) I'll admit...

Any reason R15 would need to be higher than 1k?

Max voltage for the TC1044 is 12Vdc, so you're good. It is max input voltage, though, so it's kinda running on the edge. It'll put out +12v,-12v and something around >+22v I believe? If someone knows better, chime in!

So are C7 & C8 10nF or 10uF? Is that a mod? Or a typo? 10 nano 'lectro's? 10nF doesnt make much sense..