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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?

Edit: sleep posting Edit 2: you know the first and second stage in a Bluesdriver is an "operational amplifier". Clones usually just sub a TL072.. Just thought it was interesting..

Do you have positive DC going to ground? -9vdc is your VCC (common collector voltage).. It will work both ways, i.e, with a negative ground, just make sure you observe the correct polarities on, yup, transistors and electrolytics..

Just had a new enclosure tonight with a piece of carbide, I guess from the end of the tap, broke off inside one hole. Luckily, I had enough thread to get the lid screw started, so I tightened it down to crunch up the little s.o.b..

A klone is a must for drums!

You sure its not true-bypass? Looks like it is from these pics...

And room for a battery?! Approved(y)(y)

NTE 109's

This one puts the "lager" in Lagernathy. It's got my seal of approval. Cool fzzz

Need this?

+1 on the switch! By the rules of the internet, that would make it a completely and totally original circuit, ready for mass market..

+1 on the HAO Sole Pressure. I've been a longtime fan of this one. Never seen one in person, vero is the way to go!

Reflow C8 and R15. Thats the treble side of the tone control. Looking at the schematic, an open in that area would cause your problem.

Pilatus?

Yes! Very clear, Thank you!

@Chuck D. Bones If it's no trouble, could you post your vero schematic? Thank you!