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After rechecking it, i guess we add 100k resistor in series between the ground and C7 to reduce the gain.

Hi @ac30irons, could you explain the gain mod please?

Found the problem and fixed, soldering issue thanks for the info.

For the clipping switch, I really cannot hear any differences. do we expect drastical or subtle change?

Hello Chuck, if I understood correctly you mean the modifications like below. With these modifications, with the help of unity gain buffer we will have low impedance at the pin 7 and solve stability issue using 100R resistance. But tonewise, what do we expect to have? I guess less noise because...

Thanks for detailed information! I will study and digest your message.

It seems RC4558 is a unity gain stable which unused op-amp could be used as a voltage follower instead of terminating it.

Hello, lately I am interested in J rockett pedals especially Caliber 45. I found the schematic below which unused op-amp is not terminated correctly. Could someone has a correct schematic please? After searching, I found different ways to terminate an unused op-amp and I really appreciate if...

Bass trimmer makes big differences, very reactive control.

Hello, I recognized a POP sound, when I turn on the pedal especially activating the EQ switches but it is fine when I turn off. Anyone has the same issue please?

@manfesto to clarify, with the Powder Blue drill template , pots and switch are at the same place? Because led is way lower in front of footswitch.

@Robert could you please share the drilling templates please? Precipice Overdrive Scenario Preamp Poison Apple Auto-Wah Thanks

Any idea when will they available here at pedalpcb.com?

Hmm interesting. But I could at least say my POT has ma858s.

Any idea which diodes are used in MXR as replacement of MA856s?

Thanks a lot @Robert!

Hello, I know it is new but could you please share BOM and drilling template of Splendiferous Overdrive? My pcb is on the way and I'd like to start for shopping and the design. Thanks

Thanks for your answers, it is more clear now but I still couldn't understand how to calculate the target frequency to do some modifications on it. By the way on the schematic of GE-7B for bass guitars, the last band represents to 4k. That means, if I use the same values, can I also reach 4k on...

Hello all, I have a question about changing the frequency of 6.4K. According to the schematic the other frequencies could be calculated as bandpass EQ but I couldn't understand 6.4k as there is no IC for it. Could you please explain how to achieve to 4K instead of 6.4k with the logic?

Just a quick question, any idea how to reduce the bass of green side of Pro-10? Increasing R109?