Far be it from me to think I'm flawless, in fact I'm well aware that I'm faulty. The only problem is while one side of me is faulty, the other side is very much Basil Fawlty. I generally take quite a while to warm up to the idea that I actually know what I'm doing in any given field, however sometimes when things go wrong I dare to blame everything but myself. When it comes to guitar pedal circuits I'm still a newbie, even after six years and 160 builds, but when things go wrong, even though nothing seems to be wrong, well that's when my hubris tank runneth over.
Since this year's weather has been confused I've had very little chance to get outside and solder any of the pedal kits I've put together for the 2026 season. In the meantime I figured a few short bursts of soldering inside couldn't do my brain any damage. Could it? Well, perhaps it does, as I've found even the simplest of troubleshooting tasks to feel far beyond my grasp of comprehension. Firstly I set my sights on the Univox Uni-comp, as it was a super simple circuit, and if there was a will, there was a way. Sadly it took me entirely too long faffing about with AI trying to get it to work. In the end it works, but I have no clue if it's anywhere near what it should sound like.
After that I set my sights on a slightly modified Lovepedal JTM clone I had built, in hopes of creating an always on bluesy overdrive. I subbed in a 2N3904 for the transistor, two 1N60P clipping diodes, and I added a volume control. It doesn't really need a volume control, because at max it's only unity, but it's working now. It's a decent little overdrive, not to say the JTM wasn't already. I then looked into my EQD Zoar clone, which I was super excited about because they sound amazing. When mine was initially finished, however, it was dead as the Dodo. The main issue was the JFET input. I didn't have any suitable JFETs until recently, so I slapped one into the socket and was met with buzzy, farty goodness! Well, that's a start! A little twist of the trimpot and voila! It came to life and sounded as amazing as I had always hoped. This has been sitting in my Needs Troubleshooting box for two years, and all it took was two seconds to fix it. *face palm*
What may be worse is my Zendrive clone. It worked initially, but I was flustered because I thought the Voice control was bad. I downloaded schematics and went through the comments of the layout, finding more people saying the same thing. After hours of frustrated troubleshooting, reflowing every solder joint, and trying almost everything, without having tested the circuit, I decided I should just wire it up and test it. Well I'll be an idiot, it wasn't the Voice control, it was the Tone control! Ok, so what's wrong with the Tone control? More frustrating troubleshooting later and... I used a 330pf instead of a 3.3nf. Once I swapped that out, it works perfectly. THANK GOODNESS because Zendrives are GREAT!
Other circuits like both my 9v and my 18v Katana Boosts just needed biasing. My Eric Johnson Fuzz Face has a very high pitch oscillation squeal to it, but that may be because it needs a 9v battery, instead of the PSU I normally use, so I left it as it. Then my Colorsound Power Boost, I had written down the bass control didn't work, but apparently it does now? *shrug* I still have so many circuits left to go, like my Boss Blues Driver clone, which is apparently another notoriously finicky circuit. Again, I feel if there is a will, there is a way. Depending on how finicky the circuit wants to be, that may just be a way straight into the trash bin. Let's hope the outcome is a bit brighter side than that though.