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This is so clean @HamishR !

I just don’t get it! There are too many people with more money than sense.

Your switch wiring is wrong. The jumper is in the wrong place from the lower row of pins on the switch. It should go from the lower left to the lower right. Try that first and then see if there are any other issues. I would also try and reflow some of those joints.

If you want to find out why it doesn’t work then you need to audio probe the circuit to see where signal doesn’t pass. Looking at the board a few traces between components look to be damaged so it’s not as simple as just reflowing components. The board has been over heated. 99% of builds that...

Your pin 4 has 8.3v and it should be 0v as it’s GND. Also you have 0.12v on pin 6 which should be your positive supply. Your wiring to your power jack is reverse. Swap these and test again. This should fix it if all is well.

This looks awesome! Is the preamp of a certain Mr JM? I’ve always wanted to build that preamp but could never find a schematic (not that I have any clue about tube based layouts) or PCB. I’d be super interested to hear how it sounds!

It’s where all the tone comes from!

I’d say having C8 in place will do no harm and won’t change the sound a huge amount. It will most likely filter out radio frequencies. For C3 I’d socket it and try it with and without and see what sounds best to your ears.

👆🏻

http://www.muzique.com/schem/mosfet.htm http://www.muzique.com/lab/zenmos.htm

Have you got a 7660SCPA?

I’d assume this was more of a buffered bypass issue. The charge pump shouldn’t effect the bypass as the first opamp isn’t supplied by the charge pump. Charge pump issues tend to be whine related in this circuit. You could audio probe the bypass circuitry when the pedal is bypassed to see where...

You could try a few different resistor options on a breadboard?

Probably…

1P8T or 1P12T rotary for delay lines?? 😃

I’ve got a daisy seed ready to go but need to get the terrarium board. I hadn’t seen enough stuff with it that interested me to dive into learning the code but like @Paradox916 - this is exactly what I wanted from daisy. Great work! I wonder if this code would be a good base to build the...

Putting the PCB number into the search bar on PedalPCB.com will bring up the correct webpage for that board.

Love this @blackhatboojum and @dan.schumaker

Wow! That’s crazy. I bought the one above mostly just to visualise what’s going on with clipping and it might actually be a really useful audio probe!

I had one of Jeff Bezos’ voucher for my birthday and I thought I’d try one of these out. I’m not even sure it’s fair to call it a scope but we’ll see. I want to buy a scope in the future but haven’t got the space at the moment so this will be an interesting experiment. Anyone else tried one?