POTS: Custom tapers

Screen Shot 2022 09 06 at 7.34.37 pm ba08508e8020

Don’t ask me why, but I randomly thought of doing a quick post on custom pot tapers.  Maybe it’s because occasionally I have a gain or fuzz pot that isn’t behaving how I would like it to, and I find this very annoying.  I’m sure it’s happened to everyone at some stage.  However, adding an extra resistor to a linear pot, this can sometimes … Read more

DEATH BY AUDIO: Supersonic Fuzz Gun

Death by Audio Supersonic Fuzz Gun Vero Layout v1a 11cf6f96e121

This was one of my first attempts at DIY guitar effects – and it was a spectacular failure (different layout, all my fault, no doubt).  I feel like I need to revisit this one on the breadboard, and I do owe someone a nasty uncontrollable fuzz that oscillates…  Again like a lot of early DBA, reverse beta transistors, the usual … Read more

MXR: Phase 90

MXR Phase 90 vero layout v1a 2ead714849c4

Bit of a classic guitar effect – the MXR Phase 90. Electrosmash has an excellent reference that covers all things Phase 90, including the schematic  https://www.electrosmash.com/mxr-phase90. JFETS can be pesky, so make sure you match them as best as possible and buy from reputable suppliers. The script switch is strictly optional.   It’s one of those things that … Read more

PEDALPCB: Pendulum Harmonic Tremolo

Harmonic trem freq resp 294c3ccbe410

I don’t know much about the origins of this one, as PedalPCB don’t seem to have listed any information on it (at least that I can find anyway).   The Pendulum is a Harmonic Tremolo, meaning the signal is split in two paths, each with either a high or low pass filter; they’re modulated separately and then summed back together for … Read more

DYLAN159: Clown Centurion

DYLAN159 Clown Centurion vero layout v1 772494b48272

The Clown Centurion is a rework of a Klon Centaur by Dylan159 on FSB.  Be sure to check the links below, as there’s a lot of handy information on this project.  I won’t attempt to explain it, as you’re better off reading what Dylan says. FSB thread link.  Link to Dylan’s blog, which is quite cool – a lot of … Read more

CHRISTIAN HOLMBERG (HEMMO): Bazz Fuss, Tag Board & Vero Layouts

HEMMO Bazz Fuss tag board layout v1 23ac54db34f3

This is a nice easy one for tag board off-cuts.  The Christian Holmberg (AKA Hemmo) Bazz Fuss.    A simple one transistor monster of a fuzz.  Kind of surprised that I had not done a layout or actually built one of these…  how did this not happen earlier?  I was prompted to do this after … Read more