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Nice! Always excited to learn something new! Since I have a signal passing through the circuit and the fuzz side is working, what are the components controlling the theremin(still learning how to read schematics)? Just so I can narrow my search.

I'm assuming it's this section...

Yes, that's it.

Also take a look at R12 R13 R15

RE the 470k resistor between the base and collector of Q1, do you essentially mean solder a resister between these 2 points on the PCB (probably the back as there is no room on the front)?

Yeah, basically however you can get a 470k connected to the base and collector.

When I first typed it in, I wasn't thinking about how to actually physically do this... sorry about that.


Edited to add:

You could also try removing Q1 and running a few wires from the socket to an offboard 2n3904 and a resistor. Either solder the wires directly to the parts, or use a piece of perfboard if you have it. This would be temporary just to see if this solves the problem, and then we can go from there.

I have done some research and it seems the problem might be biasing the first transistor, but I have no idea how do do this. Any help would be appreciated.

Hi and welcome,

Try putting a 470k resistor between the base and collector of Q1, and then biasing as mauman described.

a vintage EHX Attack Decay.

One of the big ones from the 70s? I would love to see some pics!

Very nice!

I'm a train buff, I really like this one!

By the way, I have some more stickers available to anyone that would like to send some out with won auctions. Also, did everyone that already requested them receive them by now?

I would love to have a sticker or two as a keepsake if there are enough available.

NorthCoast is the man! His reaching out to some of the big guys is really paying off.

I'm very happy to help out! 

https://www.guitarworld.com/news/pedals-for-ukraine

There is an article about Pedals for Ukraine in GuitarWorld.com!

https://www.guitarworld.com/news/pedals-for-ukraine

OK, I sent you an email.

I hope this helps.

I told them to contact pedalsforukraine@gmail.com for more information.

I sent out a couple of press releases today, hopefully we can get some more publicity and bring in more bids.

I took a quick look and it looks like the circuit is good, but a few values are off:

R5 should be 100k

R23 and R24 should be swapped: R23=22k and R24=10k

I picked this fund out of several options, but if anyone has a suggestion otherwise please feel free to enlighten.

I've been posting these links to charities around, just thought I'd post them here:

Animal shelters in Ukraine: https://www.ifaw.org/news/emergency-aid-ukraine

List of charities: https://www.npr.org/2022/02/25/1082992947/ukraine-support-help?fbclid=IwAR1zlM8TKOa6t7Ql9OcT6Qjv-VNU2JgkibIF6Qhizd5POUF_Yz8Ud8nPN2k

Yeah, it's a DS-1:

http://www.effectsbay.com/2018/07/devos-mark-mothersbaugh-effects-on-guitar/

This may (or may not ) answer some questions. Take a look at 3:29 and 5:23 and 7:05:

Maaaaaan, that looks sharp. How do you like it?

It's pretty awesome Jimi. Devo is probably the most famous user. It was taped to the guitar to use it and change settings.

Sent from my Pixel 5 using Tapatalk

Nice build!

And here's Mark with his FA: