Indicated for activation by microcontrollers, this circuit was found in the Radio Electronics magazine of December 1987. The MOSFET can be of any type according to the buzzer.
This circuit is designed to trigger a xenon lamp from a switch. The circuit was found in the May...
This circuit was found in a Hands On Electronics from the 90s. It is intended to supply old tape...
This amplifier uses a 1975 integrated circuit, which is uncommon today. The circuit has a gain of 30...