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Thanks for the cool project, @vigilante398 ! Have you tried running clean preamps like this with submini tubes, e.g. 6n16b and 6n17b? If so, have you noticed any sonic difference compared to a 12ax7?

How sturdy do you find these enclosures? Is there any give when stomping or can they handle the weight?

I guess this is turning into a philosophical question. For completeness, here is what the author of this circuit had to say in an fsb thread: Back to @psb962 's question about the hiss/random popping... Have you tried jiggling the wires & components with a pencil while connected to guitar &...

I don't understand the need to select j201s based on idss value seeing as how you are using the trimmers to bias the jfets. Selection is critical when the biasing resistors are fixed (like in fairfield's production run), but not when you're biasing with trimmers. Let me know if I'm wrong :)

So for anybody else that will be looking for solutions to a motorboating Nobleman... Madbeanpedals Laureate (ODR-1 clone) build docs have this to say: AionFx Andromeda (ODR-1 clone) Legacy version build docs about adding an addition 47uF cap to the Vref line: In the current version of...

Oh, I tried adding an additional 47uf between GND and Vref as mentioned by Robert in this post and indeed it seems to fix the oscillation at max vol and gain for me. Edit: but why do some builds have this issue and others don't? What other variables are at play?

I also have this oscillation issue with the volume and gain pots close to max (when there's no or low signal coming from the guitar). Plus I hear this oscillation (albeit a lot quieter) when playing dissonant bendy intervals at lower volume and gain levels as well... I wonder if anyone has any...

Is there a BOM or schematic available for the Skeptical Buffer? I’d like to add the necessary components to a Tayda order…

Too bad there still isn't a 5-knob schematic available. Does powering these types of pedals from 18v require rebiasing of the BC108 and 2N5457?

Also I guess I’m stupid but can you point me to how you’re getting the 6v for the heaters?

Cool board! What would you say the output impedance of this circuit is with the 1M master volume?

@Dan0h so how does your blackvibe take pedals in front of it? Any peculiarities that you may have noticed?

Does the true bypass wiring generate a popping noise when working the 3pdt switch? The designer of Kingsley pedal preamps doesn't use true bypass, citing this reason.

Very cool. What other pedals do you have on your board?

Hey @Dan0h , so a month has passed: do you still use like this pedal? It would be really cool to see the results of this experiment, if you are still up to it.

Hi @Dan0h , the demo sounds awesome. What kind of amp are you running into?