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Hello I have the board pictured below, but when i click the Download Build Documentation on the link it gives me the documentation for a different board. The documentation that it provides is for the Intelligent Relay Bypass Module but it is for the second picture I post below. Does anyone...

Hello I am looking for any information on what they use in this pedal? Is it analog, FV1, Daisy seed, or something else? Thanks Rob

Hello I found a website that calculates the frequency of a 555 circuit. And using the formula Td=N divided by (2 times Fclock) I get different results. Trying to figure out the frequency of the Rockman Chorus using the website 555 calculator I get 85KHZ (R1=2.7K, R2=560K, and C1=15pf). Using...

Hello Per the instructions on page 2 it mentions that if we install CD4027 with no modifications to the IC that octave 2 will work as a low pass filtered duplicate of octave 1. Does anyone know what part of the circuit does the low pass filter? Can we swap any devices to a pot to make the low...

Hello I used the six band pot board to create a Mesa Boogie 5 band eq and it works. But when engaged the volume drops a lot. I took out the two 10k resistors on the input and output stages and installed 250k pots and got more volume, but now distortion. Is there a way to increase the gain to...

Hello I am building a 5 band EQ with same controls as a Mesa Mark amp. I am using the board I got from PedalPCB, and changing values using AMZ FX gyrator calculator. My question is, for the Q value, does this need to be a small or large number? Or does it really not matter? Thanks Rob

I have a Marshall DSL40C, a DIY Suhr reactive load box, Valeton IR Coral box, and a Headrush FRFR108. Will this work without harming the amp: DSL40C 16 ohm output -> DIY Suhr reactive load box -> Valeton IR Coral box -> Headrush FRFR108 powered guitar cabinet Thanks Rob

I have an expression pedal I am going to use with my tear jerker wah build, because I am putting all the controls accessible in its own pedal. But the pot is a 10k pot, and the build asks for a 100k pot. Is there anyway to adjust the tear jerker board to use a 10k pot?

Hello Just got done building the mini version, and no sound. The bypass works, and I did notice the 7371 lamp does not light up? I did notice I first put the wrong charge pump chip in, I used a 1044. Replaced now with a 1054, but no lamp. I did measure 12v at the lamp. I tried (2) different...

Some of the type of Big Muff's one can build from the documents are hard to identify the version they are clone's of. Is there a list to tell what versions they are? I am really curious about the Bigger Muff version, is there a video of this one? Thanks Rob

Do you know when you will be getting this part in, or do you know of a replacement that can be ordered at Tayda, Small Bear? Thanks Rob

Do you know when you will have these PCB’s available?

I built the Arachnid and with the volume maxed it barely gets to unity level. Would I need to raise or lower the 100k volume pot to get more volume? Thanks Rob

I added the mid control to my Thermionic Distortion to make it a Little Debbie by making a vero board. It works. If anyone is interested here is the vero board. Just remove C18 and R21, and add this into your pedal.

Is there a way to find out what new PCB's you are working on? You mentioned that you were going to do the Revv G3? How about a way to donate money for you to buy a pedal that we want to see you design a PCB of, and by donating (a certain amount) we would get a PCB?

Since you do not have the schematic up for the TB yet, I am curious if these are the same designs?

Looks like my old topic on this was deleted from the server transfer. I got my Seabed delay working, but I have a bad PCB. I had to lift the one side of R16 (closest side to PT2399) and solder a jumper wire from the lifted side and connect to PIN 12 of PT2399. Why, using a DMM, R16 was...