We found this circuit in a 90s Linear Technology documentation. The circuit uses components from the time and the indicator is of the analog type.
This powerful sound emitter used in defense to intimidate people was found in a 90s Popular...
This circuit was found in a 1965 Electronic Design. Transistor Q2 must be load dependent. The circuit...
In the figure we have the amplifier application in a NOR gate, with reference voltage equal to the...