This 1.5 A circuit has the output voltages adjusted by a selector switch. We found it in a Popular Electronics from the 90s. The integrated circuit must have a heat sink.
This low voltage AC control uses a triac. Any TIC series triac can be used and this device must be...
This circuit was found in a 1987 magazine. It measures the pulse rate produced by a cardiac...
The field effect transistors have characteristics that allow the realization of excellent...