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By the way, your TPA3118 board is a fake. That's not a TPA3118. Real ones have 32 pins. Yours has 28. I've gotten the same fakes and the fakes have a lot more hiss than real ones but aren't bad sounding.

You must have exactly one earth ground connection to the ground (shield) of your guitar rig. Not zero and not two, which makes choice of power supply important. If your 9V power supply is earth grounded and connects the negative rail of it's 9V output to earth ground, then the power supply to...

I just found this little coded rotary switch on mouser and ordered some. Also tweaked my PCB design to use it and need an excuse to order a batch. Is anyone interested? I've already built enough of the original boards that I don't need them with a rotary. But, it's so cheap to order 10...

One more module for now. This is a pre-boost distortion module that can implement Bobby, Cetus or John from PedalPCB. I used DIP-8 for the op amps on this one to try out alternates. I like 4580 in distortion pedals instead of TL072. At PCBWay...

OK... The mother of all the modules. The full AMT M2 board. This will actually fit in a 125B as a stand-alone but it's purpose it to serve as the foundation of a combo pedal. The board can support the M2, E2, C2, B2, and K2 (and now O2 as well). I have to figure out how to have multiple BOMs at...

Tube screamer module shared at PCBWay.com. https://www.pcbway.com/project/shareproject/Tube_Screamer_guitar_boost_board_for_embedding_in_a_combo_guitar_pedal_format_98ff98e0.html Interactive BOM https://paulamps.com/boms/Tube%20Screamer.html

When I order these, I get 10 boards for myself and usually don't need all 10, so I offer a few extras for $2 each plus shipping. If I don't have extras, I don't sell any and I will never stock up and sell them. I'm a (nearly) retired engineer sharing a hobby, which is why I put them on PCBWay...

I have some of them in hand if folks want but I'm posting them on PCBWay so anyone can order direct. Still have a bunch of modules to share, especially the primary module that has the amt legend series 2 clean, dirty and cabsim all on the main center board. I still have more pre-boost modules...

Have added a Plexi Drive pre-boost module at PCBWay.com. https://www.pcbway.com/project/shareproject/Plexi_Drive_pre_boost_module_for_embedding_into_a_combo_Guitar_pedal_93587a52.html Interactive BOM https://paulamps.com/boms/Plexi%20Drive.html

Have shared my simplified Prince of Tone pre-boost module at PCBWay.com https://www.pcbway.com/project/shareproject/Simplified_Prince_of_Tone_pre_boost_module_for_embedding_into_combo_guitar_pedal_173e99fe.html Interactive BOM https://paulamps.com/boms/PrinceOfTone.html

Have shared an alternative PCB for the Malachite Overdrive at PCBWay.com for embedding in a modular guitar pedal. https://www.pcbway.com/project/shareproject/Malachite_ovedrive_from_PedalPCB_com_in_modular_format_for_embedding_in_a_combo_87b07dfe.html Interactive BOM Link...

Have shared the mini-spark clean boost board at PCBWay.com. https://www.pcbway.com/project/shareproject/Small_guitar_Clean_Boost_circut_for_embedding_into_modular_Guitar_pedal_projects_ad69d8a1.html Interactive BOM: https://paulamps.com/boms/Spark%20Mini.html

In order to keep this thread full of all the modules shared, here's the thread about the alternative Pythagoras (Spin FV-1) module for embedding wet effects. https://forum.pedalpcb.com/threads/alternative-pcb-for-pythagoras-circuit-at-pcbway-com.22779/post-287707

I've shared the alternative Muzzle PCB at PCBWay.com. https://www.pcbway.com/project/shareproject/Keyed_Noise_Gate_for_Modular_Guitar_Pedal_Board_Using_4305Q16_U_Dynamics_Process_0be9e9ac.html It's almost identical to the Muzzle here at PedalPCB.com but I added voltage protection since the...

Had to make some tweaks to mine for signal levels. The clipping LED was on all the time, so signal was too hot into the FV-1. And then the signal out of the FV1 was hot and hard to only add a small amount of reverb. These changes might be needed for others. First get input signal adjusted to...

I have not shared the PCB modules (other than the FV-1) but I would be willing to do so if there is interest in this format for a combo. I've also now done a board that can make any of the 3 victory boost pedals (Bobby, Cetus and John on Pedal PCB) as a pre-boost module. The Victory Sheriff...

FYI... The board is 2.5x1.75". I squeezed the one above into a 1590G but it was very tight on the sides to fit the jacks and I had to cut a hole in the base plate for the jumpers and eeprom to stick through a bit (but it gives me access to them easily). This case is only 1" tall. If you leave...

Built one of these into a stand-alone, always-on reverb in a tiny case for my current pedal board. Also shown... My power amp with XLR out on the left and the all-in-one combo pedal on the right.

I screwed up the thread title. Meant to say "... at PCBWay.com" In order to embed reverb into a combo pedal, I've made a PCB in small format. My intent is to install an always-on reverb into a combo pedal and use trim pots to "set it and forget it." Here's one with alpha pots used for testing...

Have you resolved this? Mine is working. Have you tried grounding pin 13 of the FV-1 to run the internal programs and see if those work? With pin 13 grounded, you should get these three options: If you still get nothing, then maybe the fv-1 is not running, not properly soldered or dead. But, of...