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Wow, huge collection of DIY synth circuit diagrams from René Schmitz! Pictured here… Triangle thru zero VCO – “A thru zero oscillator is one that can go forward and backward. This allows for deeper frequency modulation. Sonically there are interesting a little yamaha-ish sounds possible. This oscillator sounds somewhat dirty when the modulation index is time variable. But clean non-time-variant timbres are possible. I’ve put up several samples here, to give you an impression of the sounds I obtained…” [via] – Link.


  • Synthesizers @ MAKE – Link.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.

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