Ray Wilson’s Older VCO

www.musicfromouterspace.com/analogsynth/vco.html

Bergfotron Complex VCO

http://hem.bredband.net/bersyn/VCO/vco_complex.htm

Bergfotron Complex VCO

http://hem.bredband.net/bersyn/VCO/vco_complex.htm

Modulation VCO Waveshapers

Bergfotron Complex VCO

Moog Sonic VI

From http://www.sequencer.de/pix/moog/moog_sonic_six.jpg

Sonic VI Waveshapers

Thanks to “Topp” on electro-music.com for explanation

Ray Wilson’s Older VCO

www.musicfromouterspace.com/analogsynth/vco.html

Music From Outer Space - Ray sells boards for many of his designs at reasonable prices

Aries 317 VCO

From matrixsynth

From www.leinermedia.net

Moog 901B

moogarchives.com/ m901ab.htm

Discrete comparator Art of Electronics, p. 232

Moog 921B moogarchives.com/ m921b.htm

EMS Synthi/VCS3

www.hinton-instruments.co.uk/ems/vcs3osc1.gif

www.vintagesynth.com

PAiA 9720 VCO

Synthi 100

www.vintagesynth.com Jack Dangers Meat Beat Manifesto

Buchla 259: Programmable Complex Waveform Generator

Don showing his new 200e to Amanda Pehlke (aka Çikira) www.cikira.com/visit/buchla

www.buchla.com

www.vasulka.org/Kitchen/PDF_Eigenwelt/pdf/096-099.pdf

Buchla 259, Triangle Core

Buchla 259, Sine Shaper