This frequency divider by 10 uses discrete components only. Modern equivalent components can be used as the circuit is from an 80's documentation. Nearby frequencies can be used.
This circuit consists of a good perfromance audio amplifier powered from two or four batteries and has...
This filter lets a range of 0.1 to 10 Hz pass. We find it in a 1980s documentation, but it can be...
This 80's circuit uses germanium transistors like the AC125, AC151, AC163, 2N506 and others to...