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.
Short pulses can be found in this 90's EDN circuit. The load is 50 ohms and the transistors are from that...
Found in an American 1980s documentation, this circuit generates frequencies in the range...
This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output...