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Pic of it assembled Thanks again for the help!

This is my first high gain pedal. Just got the pedal assembled and put in the case, that eliminated basically all of the humming. Guess I should have taken your advice and tested in the case, but I was getting tired of assembling and disassembling. This thing is fucking awesome. Thank you SO...

Thanks Chuck, that is extremely helpful. I just went through all the different points you mentioned and I believe my pedal passes the test. Gain and volume do exactly what you said they should do. Thank you so much for taking the time to help me with this! I'm going to get the pedal all...

Also after more testing: If I lower the gain then even unplugging a the input cable will not turn the light on. Just want to make sure there's actually a problem here.. If I crank the gain to max then I get a decent amount of noise coming through my amplifier when not playing but only hear it...

I've been using my audio probe and here's what I've found so far. I am testing both the signal from the looper pedal and with the looper volume turned all the way down so no signal is provided. Here's what I'm seeing with my audio probe: R11A Right side: Humming not loud, guitar signal sounds...

Also I just wanted to clarify something: If I have this pedal plugged in to my looper pedal and my looper pedal is supplying no signal, those LED's are off. If I supply input (even a little input) the LED's will turn on. At super low input they will flicker a bit and then they'll fully turn on...

Thanks for the tips! I just did the probe walk. IC2A-1 sounds clean. IC2A-7 has a little bit of gain sound, if I turn the volume of my looper pedal off (i.e. not feeding any signal) there is a very very soft hum. IC3A-1 is a LOT louder than the IC2 signals. With volume of my looper off, it has...

Yeah I have a DC power source. Yes I have an audio probe. I have watched videos on using so, so I think I know how to use it?

Chuck, how would I troubleshoot why that is? I manually checked the resistance of all the high gain channel resistors and they all look correct (minus the couple that cannot be checked on board). I noticed that when I switch to low gain channel, the 2 high gain channel LED's you are talking...

Alright, I think I'm just being an idiot and the pedal is working fine.. I plugged my guitar in to other pedals that have a true bypass and that are off and they have the same feedback coming through as what I described in #1 and #2 above. I think that's just normal. I dialed the volume knob...

Did more testing: 1. If I plug this pedal in to my amplifier and this pedal is unpowered AND the switch is set to bypass, I still get a hum coming through the amplifier that is not present if I just plug my guitar indirectly in to my amplifier 2. If I plug this pedal in to my amplifier, switch...

Updated pictures (I have been unable to remove 100% of the whiteish residue, I've scrubbed this thing a LOT with a toothbrush and wiped it down as best I can with a cloth to pick up residue): I did find one solder joint on the low-gain channel that was bad so I fixed it (but I'm not testing...

Chuck, to answer another one of your questions: 1. I unplugged the IC's from the low gain channel and same thing is happening 2. I plugged the pedal in to my guitar and get the same squealing noise if I'm not strumming. If I send signal through the pedal by playing the squealing goes away and I...

Cool, I'll clean it up. The IC's are plugged in and I was testing it with all pots installed originally. I removed the low-gain channel pots so that I could see the PCB. Thanks for the help!

PCB picture: Video of me adjusting the knobs individually to see the effect it has on the sound: All of the knobs are set to maximum by default EXCEPT tight which is set to minimum. You can see that setting tight to maximum makes the squealing even louder. Volume also effects it a lot, if I...

When the pedal is switched off there is no hum. The hum is present when the cable is connected to my powered off looper pedal (input) and amp (output). The squealing happens when I unplug the input cable from the pedal. In both situations, the pedal is powered on and in the high gain channel...

Guitar signal does go through, yes. The controls work to raise/lower guitar volume, adjust low/mids/high/gain, etc. But when there's no signal I get this noise.

Alright, the new resistors finally arrived and I got them installed. The pedal sort of works now.. When I have my guitar plugged in it does raise the gain. When the guitar is not plugged in it's making some crazy sounds. I've attached a video. When there is no input cable connected to the pedal...

Alright, I'll order resistors and give it a shot. I have experience soldering but not working with PCB's, mainly just doing other projects like working on cars. I'm happy to have some tips. I had to remove some components and used a solder pump to remove solder and then heated up the remaining...

I honestly have no idea what happened with the resistors. I remember reading the list of stuff I needed, seeing the "K", and seeing otherwise identical resistors on Tayda without the "K" (like 2.2 ohm instead of 2.2kohm) and I guess I figured they were the same.. The clearly aren't, so just a...