MATRIXSYNTH: Inside an Oberheim SEM


Sunday, March 16, 2008

Inside an Oberheim SEM

images via this auction
"Included on a CD-ROM will be more info, specs, modifications, module connector pin-outs & schematics. Schematics also included for a power supply & sequencer.

Quick Module Specs:
2 Oscillators - VCO’s - sawtooth and variable-pulse waveforms. +Sync.
1 Filter - VCF multimode: low-pass, high-pass, bandpass and notch with filter envelope generator ASR (Attack, Decay and Sustain).
1 Voltage Controlled Amplifier - VCA with amplifier envelope generator ASR (Attack, Decay and Sustain).
1 Low Frequency Oscillator - LFO"

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