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Quad decay envelope

The Trogotronic Model 12 is a quad decay envelope featuring manual controls over each parameter. Each of the module’s decay settings can be manually adjusted via dedicated control knob, with switchable polarity.

Additionally, the module sports pulse and trigger envelopes for ASR and AD style envelopes.

m/12 Detektor Features
Quad Decay Envelope
Pulse input for sustain envelope
Trigger input for transient envelope
Polarity Switch

https://www.perfectcircuitaudio.com/trogotronic-um-12-quad-decay-envelope-10hp.html