This amplifier with gains between 5 and 100 was found in the May 1988 issue of Radio Electronics magazine. The circuit requires a symmetrical power supply.
This circuit, when triggered, locks, and remains so until the source is switched off for a moment or...
With the values of the components indicated, this timer controls intervals from a few seconds to a...
This circuit with a few watts of power was found in the April 1995 issue of Electronics Now...