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Isolating power supplies for CL and FF did not help.

Tried re-routing signal wires, didn't do anything.

If I turn ON the fuzz face with the volume/gain up, I can hear ticking/pulsing from the disengaged CL. Turning range and speed does affect it. Turning range to zero makes the ticks/pulsing go away (CL engaged or disengaged), but obviously you loose the depth from the flanger.

Tried replacing the LM324 with a TL064. That changed the characteristic of ticking/pulsing to be more thumpy, but other weird sounds still present. (readjusted clock when I swapped chips).

I guess I was just asking for trouble putting a fuzz face into another box with something else.

NPN, 108/109

Howdy. Buddy of mine wanted a FuzzFace and Electric Mistress in the same box. "No problem".

Made a fuzz face, works great. Made the Current Lover. Got it calibrated and dialed in, sounds phenomenal.

Put them both in the box, each one works nicely on their own, but together they are completely unusable. Very noisy, tone changes significantly, LFO pulsing/ticking. Tried recalibrating the CL a few times and while I could get ~some~ of the noise and ticking to reduce, I would still say they are unusable together.

Tested voltages on ICs compared to what is in build docs. They are close, so that shouldn't be a problem. Grounds are all connected. Sharing power from the same DC jack, maybe it's worth testing them with isolated power.

Any ideas? Know something that I don't? Need more info?