Dedicated to experimental electro-acoustic and electronic music
Dedicated to experimental electro-acoustic and electronic music
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Schematics / Jurgen Haible Trapezoid VCA
< The Vocal Filter section of the Roland VP330 | Schematics | Buchla 218 Slew, layout provided by vtl5c3 > DIY | VCA | EMS | VCS3 | Synthi | Trapezoid | Jürgen Haible Jurgen Haible Trapezoid VCA ,the whole page is here : http://www.jhaible.de/trapezoid/trapezoid.html description from there : 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. 
< The Vocal Filter section of the Roland VP330 | Schematics | Buchla 218 Slew, layout provided by vtl5c3 > |
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