A replica of the 24dB Low Pass and 6dB High Pass Filters from the legendary Roland Jupiter 8. This is an OTA design that Roland first used in the Jupiter 4 in 1980, and then added Q compensation for the Jupiter 8. This is a warm sounding filter with smooth frequency control and a resonance […]
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This 12HP Eurorack module is a replica of the Roland Jupiter 6 voltage controlled filter, which has two 2-pole State Variable filters in series which provide 24dB low and high pass modes, as well as a 12dB band pass filter. Overview The analog polysynth Jupiter 6 was launched in 1983 with six voices that used […]
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The Jupiter 4 VCO is a unique design, never repeated after 1978, a hybrid analog and digital design. The core of the VCO is a current controlled CMOS clock built from three inverter gates of a 4069 chip. A traditional exponential generator with matched NPN transistors provides the voltage to current conversion and 1V/octave octave […]
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