Monolithic machines

Monolithic machines monolithic machines is a boutique pedal building workshop in Cape Town, South Africa. We specialize in effects pedals for guitar and synth.

Tunderbird Fuzz - BC108 Sunface circuit / NOS vintage capacitors. This is an awesome Fuzz! Analogman Sunface Circuit. It...
06/08/2026

Tunderbird Fuzz - BC108 Sunface circuit / NOS vintage capacitors.

This is an awesome Fuzz! Analogman Sunface Circuit. It gives some range on the Bias for a lot of texture control.

I've built a lot of FF derivatives over the years. Some have been good, but none as good as this. Analogman does the best Fuzz Face Implementation I've ever heard. Really a great pedal. Doesn't suffer from any of the regular FF issues like oversaturation, and lack of gain range. Thanks to the internal input trim, you can set the input level to perfectly match your guitars pickup output level.

- NOS Capacitors from Roe and Vishay.
- CAD designed, hand etched PCB / Hand Wired (My own design)
- True Bypass
- Runs off a standard 9V pedal power supply. (No batteries)

Godzilla Splatter Shifter - Prototype. Based on Dan Armstrong's Green Ringer, vintage octave effect. Unlike the original...
09/01/2026

Godzilla Splatter Shifter - Prototype. Based on Dan Armstrong's Green Ringer, vintage octave effect. Unlike the original, this one has an "intensity" control providing some control over the effect amount. This pedal works best in front of a Fuzz or Distortion as a utility octave up. Graphics are a tribute to Japanese Poster art and GODZILLA!

424 Porta-Pre. Preamp based on the Tascam 424 porta studio .Built directly from the MK1 schematic found in the service m...
02/01/2026

424 Porta-Pre. Preamp based on the Tascam 424 porta studio .Built directly from the MK1 schematic found in the service manual. I bought a lightbox, so here are some new photos. This is a prototype, production version in the works.

424 Porta Pre - Tascam 424 preamp pedal. I've spent quite a bit of time with this one. Its not a JHS clone, its built di...
06/11/2025

424 Porta Pre - Tascam 424 preamp pedal. I've spent quite a bit of time with this one. Its not a JHS clone, its built directly from the Tascam 424 channel pre-amp schematic found in the service manual. My own circuit design. And since I had to source the correct op-amps, it sounds exactly as it should. If you're into the whole Mk.gee hype then this might be something worth looking at. I used to work on a Tascam 424 many moons ago and know the unit well, I never considered the idea of it being used as a guitar pre-amp / overdrive. It might not be everyone's taste, but it sounds quite unique as an overdrive and is quite a capable pre-amp at lower gain levels. It also works well going into line inputs on consoles and instrument inputs on audio interfaces. This is a prototype,, might make a few for sale.

04/03/2025

Astro Germanium Fuzz Face.

Astro Germanium (Black and Yellow) - This is a DA Fuzz Face iss.1. It uses a reproduction circuit board on phenolic (Jus...
04/03/2025

Astro Germanium (Black and Yellow) - This is a DA Fuzz Face iss.1. It uses a reproduction circuit board on phenolic (Just like the 60's!). This one uses vintage NOS Germanium AC128 and AC107 (Mullard) transistors that were carefully selected for optimal gain and leakage. As well as NOS caps and carbon composite resistors. Some serious mojo going on here. Sounds fantastic!

Rangemaster Circuit with NOS soviet PIO (Paper in Oil) caps. Genuine Mullard OC71 transistor.
27/02/2025

Rangemaster Circuit with NOS soviet PIO (Paper in Oil) caps. Genuine Mullard OC71 transistor.

New Fuzz Face circuit going through the prototyper 5000. This is a Pigeon FX replica DA Fuzz Face PCB on phenolic copper...
10/02/2025

New Fuzz Face circuit going through the prototyper 5000. This is a Pigeon FX replica DA Fuzz Face PCB on phenolic copper board. The Germanium transistors are a Mullard AC107 for Q1 and a AC128 for Q2. Both carefully selected for optimal gain. Q2 Biased perfectly with an 8K2 resistor. Also on board is a Mullard Tropical Fish output capacitor, Phillips BC input and gain caps as well as Arcol carbon composite resistors. Some pretty heavy mojo going on here. Soon to be boxed and wired up.

Kingpin Germanium Booster - This is my prototype Rangemaster circuit. I've built this one using NOS soviet parts, paper ...
06/02/2025

Kingpin Germanium Booster - This is my prototype Rangemaster circuit. I've built this one using NOS soviet parts, paper in oil input and output caps. NOS Germanium Transistor. I am half way through another 3 of them that will feature NOS Mullard OC71 transistors.

I will be selling this one to fund parts. So if anyone is keen on buying it. let me know.

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