This circuit is from documentation from 1965 but can be easily implemented today using modern transistors. We can use BD136 for Q1 and TIP42 for Q2. The TIP must be equipped with a heat sink.
Found in an Analog Devices documentation from the 90s, this circuit uses a component of the time,...
The A3906 integrated circuit from Allegro MicroSystems (www.allegro.com) consists of a single-step motor...
This circuit makes two lamps (or LEDs) blink at a speed that depends on C1 and C2. Any MOSFET can...