The A-142 is a voltage controlled envelope generator but with just Decay (thus having an instantaneous attack time). Controls are for:- Manual Decay and voltage control input for decay time, with an attenuator and envelope output with LED control. Additionally from the envelope signal a gate signal with adjustable threshold is derived. An LED shows the state of the gate output as well.
The A-142 therefore provides a voltage controlled gate and/or envelope signal with voltage controlled duration.
Typical applications are for dynamic control of decay (such as when used with the A-155 sequencer).