Found in a Popular Electronics from the 90s, this circuit reaches 100 kHz and battery power is recommended.
This circuit, which appears at other points on this site, can be designed with both 4011 and 4001...
This traditional SCR flip-flop configuration is from an American publication from the 1970s. The...
This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a...