The A-142-3 module combines a VCA with an AD/AR envelope generator that can also function as an LFO.

• AD: Attack-Decay
• AR: Attack-Release
• LFO

Each sub-unit provides these controls and in/outputs:

• LED control (envelope/LFO display)
• Attack (A), manual control
• Decay/Release (D/R), manual control
• Mode switches:
  • AD (attack-decay envelope) - AR (attack-release envelope)
  • Envelope or LFO (LFO only when left switch is in position "AD/LFO") 
• Level: manual audio level control (audio input of the VCA)
• Gate Input (min. +5V, max. +12V)
• Manual Gate (momentary switch)
• Env: envelope/LFO output (about 0...+10V)
• CV: VCA control voltage input, voltage range 0...+5V,
  normalled to the envelope output via 50% attenuator
• Audio input and output

Applications: virtually in each patch one or more envelope/VCA combos together with a sound source are very useful, mainly for percussive sounds