Luckily, I've come down with the flu so I took the day off work and was able to document my latest projects. Here they are:
1. Rotary Speaker mkII

This has a foot pedal for speed control

I've blogged the build here: http://silverysqueaks.blogspot.jp/2013/ ... -mkii.html
2. Electro-Theremin / Tannerin

This is based on the Gakken SX-150 synth kit. I replaced the resistor strip and touch pen with a multi-turn pot.
Again, I blogged the build: http://silverysqueaks.blogspot.jp/2013/ ... remin.html
It sounds pretty awful
Cheers