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Usually I can troubleshoot okay-ish, and have a Flange with No Name board working, but this one is stumping me. I’ve ran an audio probe through the circuit: step 1, passes through with bypass off. step 2, I lose audio in the circuit. My goal was to make sure the audio portion worked before...

Thanks. I’ll see what I can dig up

I can usually ID where PCBs come from, but this one has me stumped. Any directions where to look? Thanks (I did try the number but nope)

Mmm, aged carbon film. Because you need the extra white noise when plugging in.

https://www.diystompboxes.com/analogalchemy/emh/emh.html

If you ignore the bad wiring, it works based on a series/parallel switch from a Marshall JTM clone I built a while back. Only issue is that it will oscillate when it’s in parallel and I think the tube screamer is turned on. So that may be a flaw of my wiring.

I built this at home withal a series/parallel switch I borrowed from an amp. But I don’t have it now: I’ll put it up when I get home

I missed the asterisk on the schematic! D’oh

I’m stumped, but vested in helping. That Q3 negative voltage is making me question what’s going on. Maybe try a new cap that lead to the 100k resistor. [edit: try the cap from your board in the breadboard first - it will change the voltages if it’s bad in your working verision]Also, did you pull...

do you have an audio probe?

Those enclosures are awesome

Weird question: is your power supply good? I’ve had a couple pedals act weird with a sketchy power supply. (Really, I’m just spitballing some ideas)

R9 biases Q2, at least based on my fuzz face knowledge. Just throwing ideas

Do you have the right resistors for biasing the transistors? Ie Are they the correct value? It really sounds like a bias issue on the transistor(s). Give the voltages a check and see - it will definitely help solve the puzzle.

Maybe that 10 ohm resistor is bad. I’ve seen resistors that break at the body and fail. Just another thought!

DC dropping out makes me think the voltage is shorted somewhere. Do you have the dc jack wired correctly? Is there a solder bridge anywhere? Maybe replace the diode and try again. Good luck: it’s probably something simple that’s being overlooked.

I kind of want to know what’s in there to see if it’s done so I can box it and rock it. :)

Weenie. Everyone knows your second pedal should be a ? Flanger from DeadEndFx or a BiPhase clone. 😁😁

There are some great PedalPCB overdrives that are not difficult — maybe a Tubescreamer variant (ts-808/ts-9). A simple PT2399 delay is good for simple delay. PedalPCB, MadBean, and AionFX have been my main go to for boards, with AionFx having kits as well. Note - the off board wiring for AionFX...

Honest question: Do I rip out my old Swollen Pickle perfboard that I have (that works, but seems blanket-y) and make it more Pink Panther-y? Or do I tweak it to make it sound good? It has the quad opamp transistor package at its heart. Thanks for the response - I've been really conflicted with...