MATRIXSYNTH: RH 1 Synthesizer boards are ready

Sunday, April 04, 2021

RH 1 Synthesizer boards are ready

video by RH Electronics

"Information here, documentation and schematic​"

"The RH-1 is a digitally controlled (DCO) Synth based off the Juno 106 design. It will be available as a kit to build allowing the user flexibility of a desktop unit or rack mount unit.

It’s a mono synth with programmed ‘key rollover’ if a key is held down and another pressed it will change the pitch and re trigger the envelope.


Single Digitally Controlled Oscillator, Saw + Pulse (PWM Adjustable)
Single ADSR analog envelope (AS3310)
PWM and Filter envelope mod, adjustable
External inputs for Filter and PWM summer
0 to 5 volt analog CV
12 volt digital CV
AS3372 signal processor
Envelope re-trigger on second key press
Adjustable audio out ~650mV p-p
PIC16F18344 controller running with a 4MHz crystal oscillator
Power requirements are +/- 12 volts. A standard eurorack connector will be on the PCB"

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