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Hi all, Just working on a duocast, I have sourced a transistor for the OC-71 position, accept I've never used on of these before and I don't know which way around it goes. There is a red dot on the side of it that looks like it's been drawn on. Photos attached, please help me! Also I'm having...

Just finished an M800 build, photos attached. I have sound pass through when the effect is not on, however when I turn the effect on I have no sound. Maybe a switch problem, I thought I had continuity in the right places? Also I can bias transistors 1, 2, 3 and 4 to within of 4.5V, however, not...

I've built a few drive pedals now, and I'm not brilliant with the theory side of things but I've noticed that some circuits have loads of electrolytic caps and some may only have 1 or 2. I know in a tube amp they filter the ripple out of the power supply, are they doing the same here and why the...

Hi everyone, I've just finished building a lead solder pedal. It was a pretty tight fit. The pedal works but the LED doesn't. I noticed the same issue with a thermionic I built, which is kinda same PCB pot layout. I have my LEDs in metal bezels, please correct me if I'm going down the wrong...

I built one of these recently and I really like it, my understanding was that one of the switches switched it from true bypass to buffered, can anybody tell me whther it is switch up or down or if there is a way of checking this? Thanks.

Hi all, just build a Narcissus O/D pedal, nice low gain OD pedal. I am Trying to figure out what the dip switches do, cant hear too much of a difference with them either way, might have been the lower volumes I was at to test it. Can anybody tell me what they do? Cheers.

Hi all, quick question for the brains trust. I've been looking for a 1N4678 diode local to Australia and I'm pretty much exhusted my limited resources. I have got some 1N4679 diodes handy and as far as my very limited knowledge goes, the oly difference is that it is 2V instead of the 1.8V of...

I'm just doing a parts order and realised tthe tone control has a W20K pot on the documents. Without sounding like an idiot, is that meant to be an A20K pot as A is closer to W on the keyboard than B or C? Also, I would like to order some parts for the UwotM8 PCB i have but it says Build...

Hi everyone, Just building the abider OD, and have realised C26 is an electrolytic cap but is only 470nF. I must have missed that and dont have one, I have a 1uF electrolytic or a 470nF poyester film, really wanted to finish this without ordering more parts and waiting. Can I use any one of...

I have just finished building an isoceles boost with the two switches, but I don't know what to label the switches, or which one does which? Stupid question I know, but would love some help!

Hi all, Not sure if there is an answer to this question or not, but I've built a few drive pedals now, only really one is a bit noisy and only when on. But is has sparked my curiosity, are there ways to reduce noise in the construction/wiring or building practices I should be employing to get...

Just finished building these. Only my second and third pedalpcb build. The orange one is uberdrive, has no sound through at all, kills my signal when it gets to it. The green one is nobleman, it works when it's turned on otherwise there is no signal through. Am I doing something really obvious...