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Low voltage AC? Answered

How can I make a simple circuit that will produce alternating current using 1.5 to 9v power supply? This is an experiment for using an AC voltmeter - that is, making the needle move.

1 Replies

steveastrouk (author)2009-10-26

Use a 555 timer to make a square wave ? Couple that with a blocking capacitor to your load and measure across that.

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