The Beast Synthesizer from Yorick Tech

Steve Hunt

"I own Yorick Tech Ltd, maker of the Low Frequency Expander (LFE) for OB-6 and Prophet 6. [see here] This is a prototype / test bed for a mono synth project which will be a cut-down version of this, using the best bits. Possible poly version too....

Mostly my own design, including clones or designs inspired by various vintage synths, including 3 Oakley filters.

2 x CEM 3340 VCOs, one with supersaw and one with double-wavefolder. Each has its own PWM LFO and pitch ADSR and sub oscillator.

LFO3 is from the LFE and contains a hidden LFO, sampling the main LFO but with clever synchronisation so that patterns repeat in a musical way.

Ring modulator.

6 ADSRs (2 miniMoog clones, 2 digital and 2 CEM) and 7 LFOs, many VCAs including 2 mixers and stereo panning for each mixer.

4 filters:
Oberheim SEM doubled to give 12 or 24dB slope.
Roland SH-1 based filter, again with 12 or 24dB.
904a Moog Modular clone
miniKorg Traveller-based design

Filters can be set in series, parallel and are fed from the 2 mixers as 2 pairs.

Spring reverb.

4x5 mod matrix.

Midi or CV in"