Homemade double VCO & ring modulation

AM double VCO
FM and Sync
Normalisations

based on René Schmitz CMOS VCO Design and the real ring modulator

http://infinitesimal.eu/synth/article44/transmission-4069-vco-am

• 112 mA +12V
• 28 mA -12V
• 0 mA 5V

No info about availability.