Draw waveform with hand.
The wave form can be drawn into the wave table by hand movements.. up and down.
There are 4 modes that can be selected by pressing the button.
mode 0: pot sets sample rate (high freq) ir records wavetable.
mode 1: pot sets sample rate (low freq) ir records wavetable.
mode 2: pot sets sample rate 2 octaves from C2, notes from keyboard. ir records wavetable.
mode 3: pot controls filling of wavetable with random values. ir sets pitch 2 octaves from C2, notes from keyboard.
construction, part names are on pcb, look at picture for wiring. (ther is 1; 2.2k resistor that is not on the silkscreen, see left bottom of picture).