Main Board
Contains The following Sections:
VoltageControlledOscillator
VoltageControlledFilter
VoltageControlledAmplifier
EnvelopeGenerator
GateCircuit
HeadphoneAndMixer Amplifier.
ATmega162Microcontroller
DigitalInputAndDisplayOutput
Schematic
http://wiki.jonnay.net/_media/x0x/mainboardschematic.png