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Yes, this high voltage can kill ya. Take the proper precautions and BE SAFE please! I would check the voltages at the power supply first. I can't read the schematics you posted (might be my old eyes) but it looks like the voltages are listed at the appropriate test points. Second, test and...

I dropped R30 from 2.2M to 100K for channel two and that channel takes pedals wonderfully now! I am getting a ground loop buzz though when I tried to use it with my other amps. I've got a proper ABC pedal coming this weekend so I'll see if the ole ground lift does the trick to get rid of that...

I just found this beauty hiding in the depths: https://wiki.pedalpcb.com/wiki/PCB_list_by_SKU

Anything with "Pro" in the name can charge more! That said...I wants that! https://www.morleyproducts.com/abc-pro-selector/

I just picked up a Bellari (Rolls) mp105 mic pre. I'm hoping to change out the op amps and the pots for a colorful, cleanish mic pre. I can't find a schematic anywhere. Anyone have this schematic or any experience with this unit? Black Lion Audio has a mod where they change out the op amps...

The circuit operates the amp switch via a voltage drop across the diodes and leds. It's super simple to troubleshoot.

nothing at all with the blue

Stoopid shipping costs! Yesterday I just had to quote a guy $50 bucks just to ship to Spain. I used 3mm, 2~2.2 volt LEDs. As noted above, the blue LEDs didn't work, only the red and yellow.

The "shopping list" is on the layout page yo. GIYF. Everything IS available at Tayda. I can send you a reverb link if you'd like me to build it for you. :coffee:

Like I said, it was just a friend of a friend. I take people at their word and try not to be a doubting Thomas. If I'm the a$$hole spreading misinformation, ok. Cool.

My buddy just told me that he went down this rabbit hole with his contacts and found out that Gibson actually was considering moving production to China. They had all of these made to see if it was plausible but wound up going a different route. So these guys are stuck with warehouses of...

https://forum.pedalpcb.com/threads/paragon-footswitch-brute-trace-lifting.16480/

So if I lower R30 from 2.2 Meg to 100k~220k, I'm pretty sure it'll turn channel two into a low gain pedal input? Any thoughts are appreciated!

Uncle Doug on YouTube is an amazing resource of tube knowledge, animal love and dry wit. https://www.youtube.com/@UncleDoug Psionic Audio has got game too but mostly down to business. https://www.youtube.com/@PsionicAudio There is a lower cost technique using a "Voltage Doubler". Basically two...

Awesome, thanks! I'll leave it alone then.

I had some time to dig into it and as promised, I got the vibe going. It was a couple of drifted resistors. Sounds a little fast to me but I'm inexperienced so I'm just going to sit with it for a bit. The only thing left to source are the 2.5 inch #8 carriage bolts to secure the chassis and...

I just made the two turnaround cables I needed for this aliexpress. I like that Robert's can go fine enough for fuzz. I'll be getting that when there's some build docs but I'm glad I've got this for volts

Facts, not hype amigo. This thing is THICCC

@RetiredUnit1 is the man! I'm only on my third tube amp at this point so I'm a complete and total noob FWIW. It was either Psionic or Uncle Doug I heard say "It usually not the tubes" at one point in his videos and I've taken that to heart. As long as I have a known good backup tube to try...