ADSR312

An ADSR envelope generator based on the Aries 312 (sold as a kit in 1975), discrete: all transistors, with no CMOS logic or microprocessor. Separate gate and trigger inputs let the trigger restart the envelope while the gate holds it in its attack, decay and sustain stages.

Key features

• A, D, S and R knobs
• GATE and TRIG inputs
• Two outputs, both printed OUT
• A lamp showing the envelope
• 8 HP; Nonlinearcircuits publishes no current draw, depth or assembled price (it sells the DIY PCB and panel), and ModularGrid lists none