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So simple and efficient idea. Gonna steal it to my imaginary toolbox if you don’t mind. :) Taking it further, would cutting leaf contact socket to size work as straight to PCB -solution? Just if the mounting space is enough fir stuffing cap and transistor legs in.

Well then it’s out of my skills as you’re dealing with advanced sorcery in circuit & transistor input impedance, pickup voodoo with henries, turns and freq response etc. How about buffering the input. :D I read somewhere here that one humongous monastery guy is doing that… If you have tiny...

Static or buzz? Are single coils up picking RF or other noise from the enviroment what fuzz is amplifying? Don’t know if this works for pedal circuits or for your particular problem, but excessive noise disappeared on my tube amp after adding small capacitor leading from isolated inputs gnd...

AMZ Pickup simulator building time? Could be inside build or separate box. Are those cheap pickups high gain ceramic ones?

I feel like home watching your utilitarian knob labeling with those esoteric symbols people have hard time decoding. Couple decades ago my grammatic (what you call native language studies??) teacher threatened me about not passing high school finals if I don’t improve my handwriting. I didn’t...

I’d like a combined amp and instrument (DIYs and tweaks) section as they seem bit off from the sections available now. I’d create content there for sure!

Last summer when I was deciding between 6C7A, KT66, EL34II, EL34S and EL34, I gave a call for my not-so-local music related electronics store. I had a nice talk about tubes and the intended use with stores amp tech guy. He recommended to stay within JJ for more predictable reliability and to go...

Wonder why to use a board? You’re able to put Electra together in few mins between potentiometer and footswitch. :p

This thread has been a pleasure to read through. Your Hoof just sounded amazing. Any audio of recent FF? As soon as I get well from influenza I just NEED to breadboard another FF and muff. It should be considered as a universal human right porotocol there’s always some space, money and time...

-are wires at corrects spots on input and output jacks? Notice tip vs sleeve vs ring/switch. -double check 3pdt wiring (and other wiring) against correct layout WITH thought and patience -use marker pen to mark bom, schematic or layout when going through the circuit

I have same caps in my amp. Funny thing is that lead spacing was too narrow for amp board so had to solder some bare wire extensions to the caps. Guess same works other way around if you don’t have patience/time/money/self-respect for correct sized ones. :D

Beautiful build and white tolex still looks so innocent. Do you plan adding a grill to face side?

Isn’t tube amp fixed bias supply example where polarized cap is necessary?

Call me serial failer. 😞

Glad you got it work! Where you bought e-caps and what brand they were? If you have component tester, you can measure how leaky caps are.

@Feral Feline hard one, but comparing your suspected brown band to other bands I’d say it’s most likely more red than brown. Impossible to say for sure!

You changed R14 instead R15, but that’s not the culprit here. I’m wondering why some of the e-caps are subbed with other types? C5 and C8 are there to block DC so maybe replace those with e-caps? If you don’t have 47nF ones, use two 100nF parallel to get close or use what ever you have -/+20%...

https://www.electrosmash.com/images/tech/bmp/big-muff-pi-v3-bias.png Edit. Have you tried circuit without footswitch (board) connecting muffin pcb output straight to jack? Not so sure it could also explain transistor misbias, but low output for sure. Also if I remember correctly on one...

Are the transistors oriented correct way? Markings on pcb may not match what’s in transistor; EBC vs CBE. If thats OK, move to check values of resistors connected to Q3/4.

That’s crazy low temp. No doubt you get solder blobs. I run my station @ 300-350C (570-660F). Lower for components and pcb contacts, higher for wiring.