This synthesized generator circuit was found in an article in October 1980 Radio Electronics magazine. The article taught how to assemble it. The circuit generates signals from 1/100 Hz to 1 MHz.
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...