Guys, I also don't understand the connection of the pot.
Why is one sv labeled 100k and the other 500k?

Ok! Confirmed the mod by mictester I'm finishing the layout today to start soldering. If its all ok I'll post it here

A massive improvement can be obtained by duplicating the transistor that's connected to the output of the CA3080. The one that's there already (with the equal emitter and collector resistors) can continue to be used just as a phase splitter to feed the two recifier circuits. The additional transist...

Managed to respond changing the 56pf to 560pf in the colector of the transistors.
But now switch is very bouncy. Work most of the times.
Using 470pf as the boss flipflops improves

Any suggestions?

Guys! A warning, all the diodes except the polarity protection and the clipping diodes (cause it doesn matter) are reversed I Just finished my clone, with electronic bypass. Everything is working ok, except the button doesn't change the status of the flip flop Flip flop works cause I can change its ...

Sorry Dirk
I had to rasterize the vectors on that to overcome the size limit of 1mb of the forum
here it is on dropbox
Is an A4 size paper

https://www.dropbox.com/s/sm5flhjftbqys ... g.pdf?dl=0

Guys, heres the original (old) layout with electronic switching
Hope it's usefull

Guys
Ive found this
They say in the page that since theyre publishing the PCB they have taken counter measures for the tracing to be ineffective. But with these photos we are back in the game of realizing what does it do. We can figure almost everything
Regards

Brian stated that you have to build the circuit with the recomended resistor values and pinch several J201 until you find a set that bias at 4,5 or 5 volts.
You can replace the resistors with trimpots but the voicing of the pedal would be different
Regards

Guys I tried the PNP version and I can't manage to properly bias the tranny I used a japanese 2SB175A with 84 hfe and 32uA of leakage. The germanium diode is a 1N60P By moving the balance pot y get a range of 5v to 9v between ends The audible effect is like a volume control, no change in fuzz charac...

Guys, I searched a lot for something like this and it seems nobody did this for dummies. So being one myselff I decided to post something :icon_mrgreen: First of all you here is the theory behind this: http://www.geofex.com/Article_Folders/ffselect.htm Here you have the pcb and layout for the circui...

What happened with this project??

Guys, a friend of a facebook group dedicated to diy told me that he repaired a Brute Drive and one of the chips wasn't sanded well enough. Unfortunately he didn't took any pictures but he told the group that one of the chips was clearly marked TL0(XX) Could be that we are in front of an hybrid opamp...

I built 3 boxes with this layout. So its verified

Hey guys

I made a version of this pedal and it had a very noticeable volume jump from bypass to on
So I tweaked the 12k resistor in the feedback loop of the last opamp and that did the trick to unity gain.

I think I left it in 10k or 8,2k

regards

Johnston_evo3 dou you hear treble loss with the blend pickups system and the preamp?

In previous pages of this topic they said that a blend pot will load the input of the preamp causing teble loss. That you must add a buffer before the preamp to work properly

Regards from Argentina

Corrected.

Done.

I'll verify the pcb and post what happens later.

Regards!

that's what I thought

Guys. I Have updated the schem. One is the the OEM configuration Here https://img847.imageshack.us/img847/2425/factorynpnoem.png And here is the normal Fuzz Face configuration (A Npn Fuzz Face with a buffer and pots instead od resistors) https://img833.imageshack.us/img833/5198/factorynpnffconfig.pn...

Guys.

I have at my disposal a lot of AC127s so I decided to make a negative ground version of the fuzz factory

Here is the schematic



Please check if everything is okay and I hadn't made any mistakes...