I made up the SynthCube MFOS Noise Toaster kit! (You can blame LOOK MUM NO COMPUTER.) The project page should be this project link but it seems to be down a lot, so here's a WayBackMachine cache.

This is not a beginners project. There is a lot of assumed knowledge. There is a book, to help fill in some of the background, but electronics and enclosures familiarity is still assumed. As well as plenty of tools at hand. It's also not a quick win, there are a few days of slog involved for the uninitiated. But, with determination it is still very approachable!

The first thing you need to know is that the project page and the book provide different views, and some different information, so I found I needed to use both. But they don't always agree. I'll flag the bits I found under-explained and/or confusing.

Also, the website details some modifications, but the kit does not come with the parts for them. (Though they do look cool, I might try them in future.)

Build notes )


Angled photo of finished Noise Toaster, standing up, bit like a toaster. Top face of the aluminium case visible, with 9V battery plugged in to power jack. Front of aluminium faceplate visible, with black markings, silver switches, and black knobs. One red LED, and one red and silver push button.

Finished Music from Outer Space Noise Toaster, toaster style
Photo by [personal profile] chebe



But what kind of noise does it make? It's an analog synth. With mono output. (But the only way I have to transmit a recording to you is digital.) The only reliable sound I can manage is wind, gusty, on an open, desolate plain. But I tried flicking switches and twirling knobs as well to give you an idea of the possibilities. Here you go, feel free to jump around through it, it's not a tune or anything.





Recording of some of the sounds possible with the Noise Toaster
Video by [personal profile] chebe

Open Theremin V3

2017-Feb-26, Sunday 06:24 pm
Gather:
- active/powered speakers with a 3.5mm stereo audio jack (bonus points if the power plug is grounded)
- camera tripod
- Arduino Uno, from wherever it has been gathering dust (and USB/power cable)

Acquire:
- Open Theremin Arduino Shield
- 1m of aluminium round tube; 6mm external thickness, 1mm wall thickness, 4mm internal diameter, from your local hardware shop

Do:
- Cut tube in half, and bend (or get bent) each half into the shape described in the diagram
- Solder shield together. (The button and LEDs are surface mounted. I scorched a leg pad of the yellow LED, so no blinky yellow for me.)
- Program Uno
- Plug all the bits together. The whole lot should be grounded, but both my speakers, and the Arduino, are powered over USB, and I could not find an earthed USB-converter plug. So, at the moment, they are plugged into my laptop, which is plugged into the mains. (There is a ground pad on the shield that I should hook up in future.)
- Power up, leave to warm up, trigger auto-calibration
- Make ALL THE NOISE



Theremin!
Photo by [personal profile] chebe



- Start band