This circuit is from Motorola's 1990 Linear Databook. The transistors allow equivalents and the output power depends on the supply voltage. The power supply must be 30 V symmetrical.
The presented circuit can excite small piezoelectric transducers or ceramic buzzers. These...
The frequency of this astable depends on the capacitor that can be changed over a wide range of...
This circuit is from an old American documentation using LEDs in the rectification. The circuit...