Doepfer A-142-3 Envelope/LFO Controlled VCA

Module A-142-3 contains an envelope controlled VCA behind a front panel with 4 HP only. It is the combination of a VCA and a AD/AR envelope generator, that can work also as an LFO. The envelope generator has exponential curve shapes (charge/discharge curves of a capacitor). The VCA has a linear control scale.

The module 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
• In: audio input
• Out: audio output
  
  
• Width:4HP
• Power: 20mA @ +12V / 20mA @ -12V