Found in documentation from the 1970s, this circuit uses an oscillator and a display to warn of speeding. The circuit applies to cars with contact breaker.
This project, found in a 1981 documentation, consists of an interesting adaptation of the test...
To start a motor from a set of batteries, battery or power supply the indicated circuit is the one...
This flasher for incandescent lamps was found in Radio Electronics magazine from July 1968. The...