This circuit is from an 80's Electronic Engineering. The base is a common operating and 4 single integrated voltage comparators. The circuit directly drives 4 indicator LEDs.
November 2016 - Mouser Electronics is selling the entry circuit for Analog Devices AD8232 and...
Suggested by Popular Electronics, it is a digital amplifier, for pulses with frequencies up to a...
This circuit is for analog TV video signals and was found in the March 1988 issue of Radio...