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Hello everyone! I had a quick question. I was wanting to do a dual pedal that had a Total Recall and some type of reverb in it, maybe a Moodring. Since they have different power requirements (The Total Recall needs 24v positive ground and the Moodring 9v negative ground) I was curious on the feasibility of it. I did read in the build docs that it could be possible to use a 18v supply for the Totall Recall if I lowered the value of the resistor in series with the power (R57 I believe) from 240R to 22R So I was thinking of possibly using a charge pump somehow and then flipping the wires to get the -18v i would need for the Totall Recall. I just dont know if this could introduce issues or is something that is remotely possible.  It would just be very awesome if I could have one power jack that would daisy chain with my other pedals nicely. Any thoughts would be very much welcomed!

Hey guys,

I had a quick question on what might be causing my current issue with my pedal build.

I built two of these layouts from the perfboard layouts website to put in a dual overdrive build that I was working on.

It is the 555 Timer Momentary Soft Touch Relay Bypass circuit. When I tested them individually, they worked great, I was able to get the LED to turn on and change the state of the relay with the momentary switch. The issue I have now though is when I connect the ground and power of the 2 individual circuits and power them from the same power supply. If I want to try and run both effects at the same time in series, I cannot get both LEDs to stay on. For example, if the switch is engaged for Effect #1 and has the indicator LED on, when I go to turn on Effect # 2, it will turn off the LED for Effect #1 and then illuminate the LED for Effect #2. Right now it is functioning more like channel select switchs which is cool, but not what I am trying to achieve with this build. It is almost like the two circuits are somehow interfering with each other.

I am not sure if there is a way to better isolate the 2 circuits to prevent the cross talk or what other steps can be taken to resolve the issue

I hope that makes sense and I am hoping to tap into your brains to see If I can fix it!

Thanks!

Hello guys! I have a project that a bassist friend asked me to do, and I am not quite sure how to go about it! He was wanting a volume pedal but instead of having a foot treadle or a knob, he wanted it to just have 2 switches, one that is "volume down" and one that is "volume up" It would be just like a tv remote's volume buttons, but in a more rugged foot switch. I have done some googling and see that digital pots seem to be the way to go, but I was wondering what would be the simplest solution. He said that he would only need it to go from silent to unity, and i guess some leds to indicate what "level" he is at. I imagine that he would only need maybe 8-10 volume steps if that makes sense and he doesn't need any boost or anything. I am hoping this great community can help me out! Thanks!