- - - - - - - - - M o d u l e s -

Mostly, the modules used in this project were designed by people from the Synth-DIY list or other random sources found on the internet. A slight few are homebrewed designs which might or might not be crappy. Anyhow, these are the modules, as shown in the picture, from left to right:

PSU voltage LED indicators - the PSU is ripped out from a roland S-50 and gives +5, +6.3, +15 and -15 volt with analog & digital grounds separated.
Keyboard tuner - for our resistor-ladder keyboard, outputs gate and cv and has a simple glide. Notice the incredibly fancy safe-style knob for the tuning, it's even lockable! Based on the formant.
USB & MIDI -> CV - homebrewed design, very crude so far. Converts midi signals incoming on the USB ch1 to cv/gate and gate only on ch2. MIDI-in support not added yet
4069 VCO - square and saw out, by Ren?chmitz.
4069 VCO with modifications - square and saw out, by Ren?chmitz, tri and "sine" out waveshaper by Scott Gravenhorst.
Suboscillator - extremely simple, based on a logic counter
White noise - by Ren?chmitz
Dual ASM-1 LFO - simple square and triangle LFO by Magnus Danielson and Gene Stopp
Empty faceplate - for future stuff
ADSR - simple homebrewed (mix-a-lot-of-schematics technique) ADSR with normal & inverting out. Old and really, really crappy.
MS-20 VCF Clone - by Ren?chmitz
2 x 2 x CV-Mixer - based on the mixer-schematic by All Electric Kitchen
Dual SSM2164 VCA - by Mike Irwin.
Banana to phono converter - ummm.... figure it out.

External add-ons

CV pedal - opto-controlled seamless CV pedal with range knob
"Light theremin" - CV-generator based on a photoresistor, exists on a breadboard every now and then. *extremely* simple; a photoresistor + resistor.

Things to come

"Light theremin" - one that doesn't exist temporarily on a breadboard.
Multi EG - 8-point envelope generator
Ring modulator - any design really
3-d joystick + 1 - i have these really weird joysticks from a 70's video game that can move in 3 dimensions + turn left & right. Calculations gives about 8 octaves of control using trinary systems.
Modulation wheels - external in a box
And much, much more...