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Self-reply: it was the Flamma power supply causing issues. I tried my OneSpot (that's only 2 spots) and it works fine without noise. Single coils pick up noise, but that's to be expected. Thanks for the suggestions to look at the power supply as a culprit. I still might sneak another power...

Look at these people with all their big brains. I'll look at different options and see what works. Hope I can find the solution.

If the Vibe/Vibrato is your thing, then go for it -- the TriVibe pfb. I think it sounds nice for the price. Yeah, it's mainly SMT, but that doesn't matter. I'll figure out the noise issue. Probably a bad power cap or a noisy TL062.

So, I picked up a used Effects Bakery Butter Roll Vibe. Looking at the insides, I've discovered it's a ROG Tri-Vibe (LM13600, etc). In checking to make sure it worked and sounded great - which it did - I noticed it picks up lots of interference/whining from a power supply I use for a Flamma...

If you want to the Dumble version, I can point you that direction. It tweaks the PI a bit.

Great work as always Fing. Your dino buddies are great help.

Shoot me a PM. I think I might have a couple or know where to find some. Water clear 5mm okay?

You know, stupid things always show up in troubleshooting. Usually, it's the dumbest thing ever.

I'm probably the random goofup that sticks out here:

Bias isn't too hard. Usually most up the cathode resistor to the EL84 pair. Usually they set it at 100 ohms/5W square cermet resistor. Blues Jr. need I think 150-180 ohm to be happy. The change is pretty straightforward. If I can gut a Valve Jr., wire it up, and not burn down an apartment, then...

No problem. I was just looking for a schematic to see what was going on, and the thread showed up. Good luck

Mark Hammer modded one here: https://www.diystompboxes.com/smfforum/index.php?topic=118149.0 Looks like a simple tone stack cap change and clipper change. Probably don't need much to make it the way you want it.

Ah yes. How heathenly of me! Also, make sure to chew on some cyanoacrylate as an appetizer. Pairs well with the acetone aperitif.