Coron DC-861 (DS-8) 1980s - Black vintage analog drum synthesizer

Pristine condition

With original papers (2 pages of instructions)

fully functional

Untouched electronics. Has the C945 transistor, and NEC UPC324C bipolar analog integrated circuit

Handwired (of course). This unit a very rare vintage analog drum synthesizer / effect unit from Japan, circa early 1980s.

Internally it uses one VCO (voltage-controlled oscillator) plus a noise generator (white or pink noise) which can be mixed via a “balance” control to blend between oscillator tone and noise.

On trigger, it will produce a synthetic percussion sound (oscillator + noise) whose character you can shape with knobs.

It’s a fusion of oscillator + noise + envelope + LFO and offers distinctive percussive synthesis possibilities typical of 1980s experimental gear.

This is the original effect which has been copied a lot. e.g. Synthrotek’s DS-8 clone, Coron DrumSynth8 Clone by EuroRack, etc...