Synthesizer Modules

Note: schematics have been taken offline. Email me if you wish to have a look.

I am steadily turning my synth ideas into reality. The result is a growing range of modules suitable for analogue modular synths, audio processing systems, etc.

All modules will be offered as ready-made Eurorack units released under the CESYG name.

In the meantime you can read about some existing designs, a few of which are still available as bare PCBs for experienced builders to assemble themselves.

• Voltage Controlled 3-Channel Mute Daughter Module, comprising three voltage-controlled mute circuits suitable for the 3-channel mixer.
• Voltage Controlled 3-Channel Audio Mixer module, comprising three fully-featured voltage-controlled input channels and one voltage controlled master channel.
• Voltage-controlled 4-stage all-pass filter module, which can be used as a stand-alone phaser, or chained with multiple modules for longer phaser-type audio processors.
• Voltage-controlled dual sine LFO, again based on the SSM2164 quad VCA.
• 3-pole 18dB/octave voltage-controlled state variable filter, based around an SSM2164 quad VCA.