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Of course. I have it socketed just in case. I was just curious why R6 and not R8. I socketed both to see for myself. Figured I’d also ask. https://docs.pedalpcb.com/project/CarbonBlack.pdf

About to give the Bias pot a shot. You mentioned also lowering R6 from 46k to 33k for a wider range. Looking at the schematic I’m wondering if the same could be achieved with lowering R8 instead of R6 and if one would be better than the other? Please excuse my ignorance if this is a dumb...

I do, in fact. I actually built a stand alone Cornish buffer (your C-Buffer) and it sounds great. Built two of the Iron Forest side by side and the pedals sound fine, just not great when bypassed. It there just one buffer on the output of the Iron Forest or is their an input buffer that’s...

I’ve definitely come across that over the years, you’re absolutely right. Although, I’ve never had a pedal alter the bypassed signal in such a negative manner. It’s really very strange. I’ve built dozens of pedals with input/output buffers and aside from the typical pickiness with other...

@Robert -Curious, with C3 and C4 (both 10UF) connected to each other. C3 is polarized, but C4 is non polarized. Are they both supposed to be there? Sorry, to bother you, I’m just trying to figure out why my bypassed signal doesn’t sound good. There’s another layout up that only shows the 2...

Update: Just threw in a KTC3198-GR for Q2, same problem. Wondering if it’s with Q1. It calls for a BC184c, which I don’t have. I’ve tried BC549C as well as BC184LC (pinout corrected) both of which sounded the same. Still have a nasty sounding bypass. It’s got to be the buffered bypass on...

I ordered a couple KTC3198’s. I’m guessing very few have built the Concrete Jungle. I’ll report back how they work, in case someone else builds one. I wonder what was used in the prototype.

Oh man, I absolutely love this pedal. I thought it was a really cool idea. There’s definitely a little bit of a learning curve, but you can get a lot out of this thing. Great looking build! I haven’t tried a silicon transistor in it, but I have a few IT308a’s on hand. Send me a private...

Same here. I must be overlooking something, but I always figure a dab of solder permanently connecting the component to the socket shouldn’t cause any issues. Sockets are fantastic for those builds that are picky with transistors. In a perfect world, we could stick a transistor in and that’d...

Just finished a CJ build and while the pedal sounds pretty good, the buffered bypass not so much. All of a sudden my Rockerverb sounded a bit anemic and almost as if it lost its character. Unplug the pedal and it’s full bodied and crystal clear. The difference is subtle, but definitely...

This is weird. I’ve built a couple of the Panspermia PCB’s and while they sound great, they did seem differ a bit from the Space Fuzz demos I’ve seen. I’m fairly certain @Robert traces the originals himself, so perhaps there were some changes in the original Space Fuzz circuit, as the FSB...

Right on! I’ve got a ton of transistors and can honestly say, part numbers rarely, if ever matter. Some of the best GE fuzz pedals I’ve built were a total mixed bag of GE transistors, just in the agreed upon parameters for hfe/leakage. Even then, some circuits will sound really good outside...

I consider anything under 100uA (.100mA) to be low leakage. Anything from 100uA to 300uA to be mid leakage and above 300uA to be relatively high leakage. I’ve found this categorization to “work” in a lot of GE circuits. That said, some circuits are more picky than others for particular...

My man!

One of my all time favorite fuzz pedals. Love the sub octave “trombone” effect you get when the circuit is starved with the Mood knob and Range toggle. Also, very responsive to your playing. Dial the Mood knob back a bit and play softly, you’ll still get that sub octave sound. Although, pick...

Ok, you have a point. :)

Oh shoot, all this thinking about saturation and I misspoke. You’re absolutely correct, I meant to say Sustain. Thank you for clarifying that. To the main point about my inquiry, your explanation (as usual) makes perfect sense. Thank you for the swift and complete reply, as well as the...

So, I was curious if this was a case by case basis option. I socketed the two optional LED’s and when they were in the circuit, I’d get some decent saturation/drive when the Saturation knob was dialed anywhere passed noon. Took the optional diodes out and now it’s clear as a bell, even with...

I was just reading that. Very cool, thanks!

What in the world and less than $0.50 a pop??!! Have you purchased from this place? Thank you for the heads up!! I thought I was lucky finding them on sale at GPCB for a couple bucks a piece -same exact brand as well. 30 PT2399’s for $15!! This place seems too good to be true. Tell me...