Fairchild μA726

The Fairchild μA726, designed by Bob Widlar, consists of two matched NPN transistors and a temperature control circuit that maintains a constant chip temperature.

DIY

 * Elektor Formant
 * Elektor Integrated Rhythm Generator M252

Prebuilt

 * Buchla 258 VCO
 * Buchla 259 VCO
 * Buchla Model 208 (Music Easel) - the modulation oscillator, not the principle oscillator.
 * Crumar Spirit
 * EML 101, one for filter one for VCO
 * Kawai 100F/110F
 * Kawai 100P
 * Korg Trident mkII
 * Moog Minimoog
 * Moog Polymoog
 * Moog Sonic Six
 * Polyfusion Series 2000
 * RSF Kobol
 * Roland Jupiter-4
 * Roland ProMars MRS-2
 * Roland SH-1
 * Roland SH-2
 * Roland SH-5
 * Roland SH-7
 * Roland SH-09
 * Roland system 100 - Synthesizer 101
 * Roland system 100 - Expander 102
 * Roland System 100M
 * Roland System 700

Data sheet

 * Fairchild μA726 data sheet, 1982