This circuit is used to generate pattern bars on an analog television screen for calibration purposes. The circuit is from a 90s 303 Circuits.
This circuit was found in the September 1974 issue of Radio Electronics magazine. The circuit uses...
This circuit was found in the December 1983 issue of Radio Electronics magazine. The sensor is an...
We found this circuit in a 1975 publication. The circuit can be made with more modern equivalent...