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I built this circuit and had the same issue with the improved mixer. Worked fine when I wired it up using the original wet/dry blend pot. When I traced my circuit I found - get this - pin 3 and 5 (VB) were coming in as clean signal, not a neutral VREF. NO idea how this could happen (maybe...

Hi Mike, ever sort this out? I'm having the same issues. Also, when I turn the sustain down, the volume drops too, which is odd!

Question: What do the two LEDs indicate (note - not the LDR LED)? Is it on/off and rate? -Alec

Thanks all, this is a total loss. Starting again maybe someday when the boards are back in stock.

Yes, apologies for that confusion. I’m quite certain it is not an issue with the LDR.

Yeah, they go both ways.

Hi brain trust, Hoping for some help here. This is the Delyk PCB tremolo with separate high and low passes - which you can run independently, in-sync, or counter-synced. Cool right? Details here: https://www.delykpcb.com/product/cherry-pie-tremolo-pcb/ But trouble in paradise: everything on...

This is incredible and took a ton of work, thank you! Your thinking on pin 8 was right: it was pushed in a little too far and missed the socket. The voltages on Q3 and Q4 also helped me realize I was biasing things all sorts of backwards. Between the two we have a functioning, happy electrovibe...

Amazing offer, thank you! Do any of these look odd to you? (https://docs.pedalpcb.com/project/ElectroVibe-PedalPCB.pdf) IC4 (LT1054): - pin 1 - 8.8v - pin 2 - 4.8v - pin 3 - 0 - pin 4 - 0 - pin 5 - 200mv - pin 6 - 2.5v - pin 7 - 1.4v - pin 8 - 1.35v IC1 (L78L12) - pin 1: 16.2v - pin 3: 12.1v...

Update: I had switched the 250k and 500r trimmers, which fixes the light issue. So now it’s just that the warble from the LDRs seems to get “removed” from the audio chain, even though the signal passing through the LDR definitely modulates as intended.

Tayda. I can test the regulator but not sure how to test the charge pump.

I've audio probed all of the socketed transistors and they're good to go. I also saw that potential bridge and fixed it up. Still same ol' situation. This has got to be something obvious, right? Maybe the power source? I'm getting 12v not 15v at the transitors and the lamp isn't lighting up...

Also, checked resistor values and the pots have covers ...

Hi Micmac, The lamp is flashing nice and bright, but only when the gain is turned clockwise about 3/4 of the way. If I turn it any counter clockwise it stops flashing altogether. And yes, I tried it with the lid on with no change. The LDRs are doing their job - I tested with an audio probe and...

Hi all, I just finished my electrovibe build and the thing isn’t vibing. I get a slight drop in volume when the vibrato is engaged and minor tone change when the chorus is engaged otherwise it sounds like it’s bypassing. Any ideas? Thanks!

Thanks guys! I did a full check on cap / resistor values so we're good there. I will audio probe this afternoon. Fingers crossed. I, too, christen every pedal with a melted film cap and at least two unnecessary burns to appease the soldering iron dieties. But fair enough, I'll switch out the...

I do. Clear bypass, nada when engaged.

Hi team, Can anyone spot something wrong with this build? I am getting bubkis from it. A couple of notes: - I know, the LED is wired to the wrong side of the board, but it is oriented correctly. - There is a small apparent knick in the board near R11. I have checked continuity and it is all...

Hi team, I recently completed the photon vibe and it is working correctly. However, when I plugged it in with the power - presumably - off, I noticed that the incandescent bulb was still pulsing. Is this intended or is something akilter? -Alec

I have this same issue. Curious if others have solved it.