Simple AC/DC indicator circuit diagram
Source: InternetPublisher:containsmachine Keywords: Circuit diagram AC/DC LED DC Updated: 2021/06/14
Presented in this page is a very nice and simple AC/ DC indicator circuit diagram . The AC/DC indicator light circuit diagram is based on two transistors one PNP and one NPN transistor. This circuit will use two LEDs to provide a visual indication. Also this indication circuit AC/DC will provide a message if the test signal is positive or negative. The red LED will glow if the signal is positive DC and the yellow LED will glow if the test signal is negative when the signal under test is AC Two LEDs will glow (LED1 and LED 2) and the tester will need a dual 9 volt power supply circuit . Do not use high voltage AC or DC signals.
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