K8 Additive Synthesizer Chip
The chip is a 8 Sinewave Additive Synthesizer in a 14-pin DIP
1 analog pitch input CV for the fundamental. 1v/oct.
7 analog level CVs for level of the 7 harmonics.
1 Oscillator Sync input.
1 LFO/VCO Range select input.
This is the synth that requires no filter for shaping. because you can modulate the harmonic content of the fundamental frequency.