Found in 1967 documentation, this circuit makes use of period transistors and drives a common light bulb. Nothing against it being adapted to use LED.
This circuit is used for cable checking. We found it in the Radio Electronics magazine of December...
June 2016 - It can be obtained from Mouser Electronics the new gate driver optocoupler from...
This amplifier was found in a Radio Electronics of the 90s. The circuit uses unusual operational...