Found in a 1967 documentation, this infrared amplifier is intended for use in a Nipkow disc camera controlling a motor.
This circuit was found in February 1976, Radio Electronics magazine. The circuit is quite...
This circuit was obtained from ancient American documentation. The circuit combines a JFET with a...
Found in an EDN from the 90s, this circuit has a distortion of only 0.003%. Capacitors and double...