Jurgen Haible Trapezoid VCA PCB

Jürgen Haible's original Trapezoid VCA is now available again from Random*Source! These are NOS stock.


This is a PCB only suitable for multiple formats.


Availability: In stock

$29.99

Details

Details

From Jurgen Haible:

  • Emulating the EMS VCS3 and Synthi A Trapezoid Generator without copying the actual circuit
  • Unique FET-based VCA included
  • Parameters not independend of each other - quirky and inspiring like the original
  • Positive and negative Polarity with variable DC shift
  • Self-Cycle Mode smoothly activated towards the end of Off-Time knob range
  • Standard Voltage Trigger and Switch Trigger inputs
  • 3 Power options:
    • +/-15V with MOTM and Synthesizers.com connectors
    • +/-12V with "Euro standard" 10-pin connector
    • 15V AC Wallwart - ideal for making a standalone box
  • Voltage controlled Decay with positive or negative amount
  • A variety of extra functions that you can implement, or omit.

Specs & Downloads

Specs & Downloads

manufacturer RandomSource
HP No
Depth No
+12V No
-12V No
+5V No
Additional Resources Build Guide & Bill of Materials

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