Found in 1980s Electronic Engineering, this circuit uses common phototransistors as sensors. The circuit is CMOS using an integrated 4011.
May 2016 - It can be obtained from Mouser Electronics new connectors Ultra-Fit ™ series from Nikex for...
This frequency-corrected 1 kHz circuit has a nearly perfect rectangular signal. The circuit is...
This circuit is from a 1986 Revista Española de Electrónica. It consists of an amplifier with...