Bump for info
FinebyFine, how many mm wide is the PCB, SVP?
It looks close to fitting 1590A, too close to tell by eyeballing it.
Top-Ten Reasons Two Sticks of Derm Is Rising to the Top of My 'Short List':
1. All the accolades it keeps receiving.
2. I keep running across it due to #1 above.
3. All the demos confirm #1 above, it sounds good.
4. Simple circuit, I like simple — especially fuzz.
5. Cheap parts list, I've got a ton of 2N3904.
6. Looks like it'd almost fit 1590A, definitely squeezable into 1590G.
7. I like one-knob fuzzes, well, one-knob any-type pedals.
8. You can never have too much fuzz.
9. It's a great name, & my brain has begun to reconcile that "Two Sticks of Derm" doesn't mean 2 different fuzz-pedal builds of the same circuit.
10. It is reportedly good on bass, and indeed the demo on bass sounded good.
Ahh who am I kidding. I'll probably order it whether it fits 1590A or not...
@Elijah-Baley — just run the input wire from your switch (the one meant to go to the main PCB) to lug 3 of a pot, wiper to the board, lug 1 to ground. You'll have to experiment with pot values to find one you like, try 10k to 100k, and maybe you want a minimum resistance to ground, stick a 10k resistor or so between lug 1 and ground.
Alternatively or even in addition, you could try a 5k pot in place of R4. I'd guess a minimum-resistance here would be even more desirable, maybe 500-Ohms?