This circuit uses a high brightness LED to simulate a LASER. We found it in a 1991s PE Hobbyst Handbook. The components used are all common.
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...