The integrated circuits used in this configuration are not common today. The circuit is from the 1983 Intersil Databook. The indicator is 8 digits.
This circuit is suitable for calibrating old oscilloscopes. It was found in a 1980s documentation. It...
This is a circuit of the 80's ON Semiconductor thyristor manual. Of course, the configuration can be...
Greater simplicity for a radio receiver than that achieved by the author of this project found in a...