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    SOLVED Duck Box - TL072s making it squeal like a pig

    It worked! Quack Quack, this thing is great. LED stopped working, but it's got voltage so that's odd. Leaving that for another day.
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    SOLVED Duck Box - TL072s making it squeal like a pig

    instead of quacking like a duck? Hi All, I built the Duck Box and it came together really easy. I had TL072s on hand, so I dropped them in rather than waiting on 4558s, which I've generally found to just be the noisier version in my builds. It works, but the attack is so sensitive that even...
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    SOLVED Lectric FX DC Echo - So close!

    On some of the legs btw, I was getting a strange high pitched whining that sounded kinda warbly or phaser-like. I'm guessing since delay was all the way up, that's just some oscillation at an extreme setting. Will mark this solved if it's fully functional tomorrow pm.
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    SOLVED Lectric FX DC Echo - So close!

    Something really strange just happened. I had the parts for an audio probe so I threw one together and started poking IC legs, getting sound. After a few I noticed the overload led had started flashing here and there. So I unplugged the probe, plugged a loop into the pedal, and lo and behold...
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    SOLVED Lectric FX DC Echo - So close!

    I reflowed every single joint, scrubbed with a toothbrush and alcohol, inspected all leads for shorts and solder bridges. I don't have an audio probe, I really should build one but I'm not sure how it would help here if I can't follow a schematic, right? Then I just probed voltage on all the...
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    SOLVED Lectric FX DC Echo - So close!

    I've been working on this one for a while, finally got it all populated and wired up. At first I was getting feedback only and a dim bypass led, but adding a ground link between the breakout board and the pcb fixed both. I ripped off the power input ground pad by accident but luckily there are a...
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    Dead End Laika

    F**k me, you're right. Wow. Thanks so much. Will reply to this thread and mark it accordingly if this solves the issue.
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    Dead End Laika

    Definitely not backwards, although I can see why it looks that way in the pics. It matches the shape and pinout on both silkscreen and build doc.
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    Dead End Laika

    Updating this thread, because I'm almost certain the problem was q1. That was supposed to be a BS250, but since they no longer make those I had a BS250P in and I've read a few things about them being very different re: voltage drop. Can anyone recommend a good mosfet substitute for BS250?
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    Gorva 125b

    I've been able to make my one gorva build fit by sanding the edges of the pcb and angling it slightly. double check dimensions on them always because messing one of those up is a costly mistake.
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    Dead End Laika

    I dug this one out last night because I really want to get it working, but I somehow made it worse. Build Doc here: https://drive.google.com/file/d/1t9UkjtPVxwSyIMK1RBP7tvHhX9SKaRui/view Initially, I got a sound that just sounded like it was completely voltage starved, but at least all the leds...
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    SHO Boost - noisy when off, whistles when engaged

    I really can't figure out what i'm doing wrong here. I ordered a 3-pack of RullyWow Fo Sho pcbs to mess around with. I threw the first one together with parts I had on hand, which are all correct but not normally my first choice (carbon resistors instead of metal film, big mylar cap instead of...
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    Low Tide Issues - Low Volume, no effect

    I just noticed the pinout might be different on that transistor, looks like maybe DGS vs. SGD? I placed the SK30 in accordance with the silkscreen on my board. If someone can confirm the difference and also that this could be the cause, that would be amazing to have an easy fix.
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    Low Tide Issues - Low Volume, no effect

    I finished up the Low Tide this afternoon, super excited about this one but I’m having some issues. Switches on and off just fine, but I get a big volume drop when it’s engaged – it’s barely audible with the vol knob maxed - and none of the controls seem to do much of anything except for an...
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    SOLVED Ground Problem - GCI Socialist Jr.

    The help I get on this forum is seriously incredible sometimes. I got out my illuminated magnifier and checked the switch. I've gone over that spot that looks like a short between L+ and L- a number of times, and finally thought it was just a scratch on the breakout board. It was a tiny piece of...
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    SOLVED Ground Problem - GCI Socialist Jr.

    No, the indicator LED is on any time power is supplied to the board. D2 turns on and off with the footswitch, though it's faint. Confirmed the LED is not shorting against the pots.
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    SOLVED Ground Problem - GCI Socialist Jr.

    It's the one that GCI themselves sell.
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    SOLVED Ground Problem - GCI Socialist Jr.

    Building a socialist jr v1.1 from god city (https://kurtballou.com/docs/GOD%20CITY%20INSTRUMENTS%20-%20Socialist%20Jr.%20V1.1%20Build%20guide.pdf) and I have a grounding problem that I cannot track down. Pics are attached, this is the second time I've put this one together and had this exact...
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    Toggle Switch - swap on-off-on for on-on?

    Hmm, that might be a little beyond my abilities to be honest. maybe i'll just use it as an excuse to ditch work for an hour and go grab the part.
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    Toggle Switch - swap on-off-on for on-on?

    Working on the MadBean Kraken, and I have a bunch of DPDT toggles that are ON-OFF-ON. The hi-lo switch on this is ON-ON. If I use what I have, will it work with no effect in the center position? I feel like it makes more sense to have that option anyways...
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