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.
The purpose of this circuit found in a 1967 GE SCR manual is to control a heating element. The SCR...
This circuit was published in a 1981 magazine, but it can be easily assembled using a BC548 paraQ1...
This benchtop power supply with various output voltages from 1.5 to 12 V was found in Radio...