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post a pic of the solder side of your PCB if you are still trying to get this to work.

Danny Gatton was a master at controlling volume with his little finger while playing with virtuoso skill.

agreed it might be easier, but maybe doing the project to find out is the goal. it is one of those "to each his own" kind of things.

sounds like an interesting project. keep us posted and pic'd with photos of your progress.

at least a couple of folks on the forums are in northern VA, so just across the Potomac.

FYI --- that programmer is $10 on ebay or even cheaper on aliexpress. for example...

are any of your pots under stress when positioned in the enclosure? try loosening the nuts on all of them by a small bit and see if you get a different outcome when it is engaged.

that makes me think the other kind of on-on-on switch should be used

in the middle position for the switch both terminals provide ground connections that bypass resistors. if that is correct, that would be a setting where the most cut in frequencies would occur.

Interesting point about what needs to be done to the incoming signal to get better tracking for octave down. For octave up effects the general comments are to pick single strings from the 12th fret and up. But for that, an octave down is basically the unfretted string. Maybe the reason for...

thanks for sharing the audio for the different transistors. I liked both the third and fourth ones which oddly enough looked like the lowest level and highest level outputs. what did you decide to keep in the board?

Verifying the power and ground at the ICs is a good start. Then make sure you have good connections from the pedal switch that go in and out of the pcb. After that your best tool to isolate where your audio signal is getting stopped is to build an audio probe. Do a search on "audio probe" in...

I thought that I had built something from PPCB in the last couple of years that used a compander chip but can't nail it down. I thought it might have been the flock harmonizing fuzz, but nope.

I think this does not fit your low parts count requirement, but using a compander to compress the signal going in to the octave and then expand it afterwards was used in Craig Anderton's Roctave Divider. The NEC 570 chip could also just be used as a compressor.

I agree.

Title mostly says it all, but many of Chuck's Boneyard layouts are available in vero on Dirtbox Layouts: http://dirtboxlayouts.blogspot.com/

great design for the enclosure!

Orders being taken now, also on sale. As noted above, only available periodically: https://guitarpcb.com/product/barrys-best-pedal-hookup-wire/

"I can only get volume if gain is above 0." could be a bad gain pot that loses connectivity when turned down all the way.

Is there a particular site that collects the official schematics for guitar pedals? I see them pop up occasionally in isolated discussions.