Analogue through-zero phase modulation oscillator based on the SSI2130 integrated circuit.
Voltage controlled 3-way crossover with 24/db filter slopes.
Triangle core analogue VCO with a waveshaper derived from the RSF Kobol synthesizers of the 1970s.
4-pole multimode filter
based on the SSI2140, an updated version of the classic SSM2040 integrated circuit.