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Will do, the rest of the batch I bought have worked, could be a long shot

Nope, I swapped the drain and source like my tester said and I actually made 0 difference, still getting sound through but no gain, is it the 4558s maybe?

I've just soldered longer legs onto the adapter PCB and I'll bend them around. Gate is the same. I don't know if you remember, but you were helping me with a m800 PCB using these transistors and adapter boards I never got working, I haven't gone back to it yet, but if this solves this problem...

I just tested the little j201 that is on the little circuit board and my TC1 tester says that the source and the drain are opposite to what is labelled on the circuit board the SMD jfet is on, could this be correct?

Hi all, Just finished those pro-10, blue side works great, green side however has really low output and no gain really to speak of. There is some sound coming though but not much. When green and blue on together it drops everything down to green output. I'm baffled! I noticed someone else has...

Just curious what you used for the GE diodes? I never know what to put in. Any idea what the original circuit used? Will be putting them in sockets.

Thanks! I didn't look hard enough, also didn't realise the in and out are at the top of the board, should be an easy one. I'm about to build a fordoble as well and that appears to be the same. Thanks nostradoomus

I'm just about to build a pro-10 and noticed there is no docs, shouldnt bother me too much, I'm just not 100% sure what to do with the input output connections and which side of which 3PDT gets connected to the other if that makes sense. Can anyone direct me to another pedal build that is...

I didn't realise there were charge pumps at different frequencies, another thing I've learned today. I will upgrade the power supplies eventually, I just started building pedals and they multiplied so fast I couldn't keep up and needed power quick. I must admit for $60AUD I wasn't expecting much...

Update: Turns out there was another mod pedal, a Dr. Scientist Cosmichorus two pedals back in the line that was causing the noise in both the abyss and another chorus/Vib pedal. I moved it futher down the line past those pedals and the noise has stopped. Who woulda thought! Probably you guys...

It's not the UA delverb, I don't have them means to test with a battery as power at the moment, I didn't build either effect to run off battery. The pedals usually sit on a small board on top of the amp plugged into the effects loop with the power supply under the board, I'm assuming any of...

will test battery power too.

OK, took both pedals down to the computer to try to record the noise and I couldnt hear it. The pedalboard on my computer has a few drives on it, into an interface and the same power supply as the one I'm running for my little effects loop pedalboard that these two pedals sat on. Mosky ISO 10...

I'm not sure that I have the capacity to make a recording, will give it a go. I don't always have my cell phone with me, however I have just moved a router to that room, will try them in another room too.

I think it is a DBE Lich King, sorry.

Hi all, I finished an Abyss yesterday and everything works and the pedal sounds great apart from this digital kind of twitching sound, almost in the background of the effect. It doesnt overpower the effect at all but it is definitely there. Also, probably not coincidentally I built another...

Will do, that's a great idea

Great, thanks. Never heard of solder paste before, will look it up!

Hi Everyone, I am about to do my first board with SMD components. I have never done them before, they are OPA1678 which are SOIC 8 I think. I have these little adaptor boards that will convert them to DIP8. However, not super sure on how to solder the op amps. Is it just a case of be really...

+1 on that one too, can measure it out if I have too, but would rather not.