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Just lift one end of the resistor and run a switch..

Oh man if that gets ya, I know places on the web you can get the schematics AND a PCB, for like, less than 10 bucks! MOST have schematics, anyway.. 🤪

Have you continuity checked your toggle switches? Honestly, if your chip is coming on and affects the circuit, it's probably fine. IME, Cmos fails to silence. That said, I hope it is that easy to fix. The circuit is basically a 2 transistor "fuzz" into a blend circuit. The fuzzed signal is...

The vero "Underminer" I built sounds massive, and will never leave my board. It's a simple circuit, so I'd bet it's a soldering issue. Blend knob never cleans up completely, there's always a bit of octave, and the tone knob at center is "flat". CCW is darker, CW is brighter. Unity volume is a...

Is the "box" you have it in grounded? Unshielded wire will pick up any EMF in the area..

Opaque Amplifiers are MOJO🤌

In the case or the Brown Betty, the trimmers are for total gain. So there's no "recommended" setting. You put it where YOU like it, somewhere between "helluva lot of gain" and "way the hell too much" gain..

Any new dimmable lights or new appliances? If the effect has had no "adjustment" it sounds like outside interference to me..

I've read and kept up with this thread, and not posted till now because I always feel like I can't put down in words exactly how I'm feeling, without sounding like an idiot. I just don't like it. Cant exactly put my finger on why, maybe it's the fact you can get a good guitar for cheap without...

ONE of the problems, anyway..(n)

Your in/ out jacks are wired backwards. But don't feel embarrassed. Every single builder here has done this, probably a few times.

No switchable power supply?

Big thumbs up for the SD Jazz in the neck! Excellent pickup. The Custom 5 (sh-14) is one of the few I have never used, But a 59' with more output cant be a bad thing..

R16= 12R4 12.4 Ohms?!

I've got the same knob and "audio level" face plate! Came off a stereo power amp from the mid 70's, can't remember which🤪 always saved it for something better than what I was working on at the time..

Very tasty rig! I love it!

Cool setup! Couple ?'s: How much does that board and case weigh all together? Doesn't look too bad. Is this all you would personally use? Do you just plug into the house, or bring cabs and power amps as well?

It's a whole theory. Not really something that can be explained in a few posts, though I'm sure someone could. It includes the data sheets, understanding transistor function and biasing, and how everything interacts. And Math! Math is the language of electronics. In DIY, unfortunately, there's...

I'd look for shorts around the switches on the 3.3vdc rail. A short will kill those little regulators quick!

Blue tack residue perhaps?