Finished the synth
I finished my synthesizer project! The last touch was to to connect the four switches, which choose the phase of the modulation signal. This means that when two oscillators are modulated at the same rate, you can choose whether they sound at once, or alternately.
I've put a couple of MP3s recorded from it online here and here.
I found (you may disagree...) that it allows for a striking degree of control and expression, just by turning 4 knobs for pitch, 4 knobs for modulation, 4 switches for phase and one last knob for overall tempo.
Next steps with this project:
* add an amp within the case, so speakers can be powered directly
* add speakers - maybe on stalks, coming out of the currently empty front of the case
* add some kind of controllable distortion circuit
* etch the circuit board