This circuit uses a simple power source, having been found in the Philips Databook of 1990. Information on performance is given in the table below.
Found in Motorola documentation from the 90s, this circuit makes use of a triac from that time. The...
This transistorized signal injector was one of the first that we found using the well-known...
This 200-mW amplifier uses one of the first commercial power transistors. The circuit is from a...