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Honestly..... I feel like a noob right now. And I've got a nearly a hundred builds done. Sometimes, you just make a bunch of dumb mistakes at once. It's funny.... I've built some wild stuff with a million parts in tighter layouts, and this basic rat thing is giving me fits..... Thanks again.

I have it all out now so i need to solder the DC jack back in but I'll give you readings on R6 in an edit. yeah i didn't figure the 100k and 50 switch caused this, but while i have it all out :-/ might as well. I checked all my joints and i did find a leg off of Q3 i didn't trim short enough...

oh daing. I just noticed the pots are switched. Jesus. I feel ashamed. That ain't my only issue but I'll fix that too. What voltage should I be seeing in q2 b?

I'm about to unbolt it all again. Here's a shot just to make sure your eyes see something mine don't. I went over them with the meter up top and they all read right.

I will check all of that right now. Man, you know this circuit real well, Thanks for all this quick help. I surely appreciate it. p.s. I always wrap it up if it's under the board :cool:

Q4 is good. Q3 is not. Measure Q3-C: -0.00 Q2-C (same as Q3-B): 8.9 volts Q2-B -0.00 Is my 2n5087 DOA?

ok right now as it stands (with the leaky russians) im getting: Q3 E: 8.9 volts Q4 E: 3.8 volts I'll toss some BAT-41's in there now and edit this post with their numbers EDIT: q3 E: 8.9 volts q4 E: 3.7 volts

Ha. Dammit. I was under the impression it WANTED to see leaky russian diodes like the Original. Any specific diode number to try? I have quite a variety on hand. I'll get the measurements. Just power to the box first? Will i get diff reading with the effect engaged/disengaged?

Reviving a dead thread. UPDATE: I went back in and socketed both germ resistor spots (since nothing else was giving me any trouble) As y'all predicted I busted BOTH ribbon cables doing this (last time I'll ever use them). I have a bag of fancy russian diodes in front of me, a properly wired...

BB was just fine. If you choose two boards from Pedal PCB that are shallow enough to fit you can do it and still use all your board mounted pots. Just print out the paragon template and the mach 1 template..... use a ruler to draw a line across the top four holes for potentiometers. (On the...

So the mach 1 board is little. I've cranked out a few of them for buddies and really enjoy the build. It's just a fast one with a great end result. I've been curious about the Southern Belle for a while now. It's essentially the same (while they were out of stock, pedal pcb told me i could...

I see it now..... What value are you using for Q2c trimmer? I now have wrapped my head around using a 100k dual gang to "fine tune" the trimmed bias on Q1 and Q2 together but I really don't think i have room for a dual gang (double boxing this one with a sunface). I had intended to only use...

@Big Monk Looks like it's a 5k in both spots in the face version of this bias scheme. But i see a 100k in yours? Just want to make sure i order the right pot and timmer combo. I have a decent selection of pots on hand, but I'm not as well stocked on these trimmers.

Solid. I'm gonna order some trimmers today. I'll go back and see which resistor they need to replace specifically. since im running both pots in series, I'm assuming thats just both outer lugs and both wipers to the same hole? Will I need to run the outer lug of my external pot to ground ...

Looking further at the sunface bias setup, Im really attracted to that flexibility. Could i use the below pictured trimmer in series with an external pot? Also I can see it in your schem above, but im not sure what to do with the third leg of a trimmer....

I think i get it... either way. I'll wait till I have the three transistors in and then I'll post voltages. Maybe you can help me pick my fixed resistor and pot value once I know specifically what im working with. Thanks for your patience.

well yall went way deep on this :) Looking at how much space i have for this particular project I'm limited to adding a SINGLE external pot.... (although i do want to go back and do it again with all this extra control, so i ordered another board) so to go back to where we started: "You could...

Yup. I def smell what you're steppin in. Thanks again for the tip. Loving the functionality.

I will get a video at some point today. I feel like the sound is definitely different with the boost on full and the master at half than with the master on full and the boost at half. Looking at it on paper, i know that doesn't track but into a loud amp it def feels diff. I'm not running back...

I know it's weird but it works like i expected. I'll make a video tomorrow when the house ain't asleep. Basically I run it on all the time at the front of my chain. I usually use it to control my base level "gain" on my clean signal. As i get to the top three quarters of the knob it gets...