This interesting circuit from Radio Elecronics from October 1965 shows a flip-flop or bistable with SCRs simulated by bipolar transistors.
Found in old American documentation, this circuit demodulates signals from 1 kHz to 10 kHz for...
This simple circuit is a continuity test that, in addition to testing resistors, can also test...
This circuit was obtained from an English magazine from 1985. It consists of a pulser that drives...