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- Fri Jul 25, 2008 2:28 am
- Forum: General Discussion
- Topic: Theory behing 110 V AC RC driver Circuit ???
- Replies: 9
- Views: 2863
Hi, recently I try this circuit for a light switch indicator. (using a capacitor, diode, resistor and led) If the lamp is off then the led on, and if the lamp on then the led off. However, I've told by some people, you can only just use a resistor and a led and plug it to 220VAC. It's common on rice...