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My Washing machine timer circuit

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Uploaded on Jul 11, 2011

With a lot of hard work, me and my friend were able to successfully complete the fabrication of the PCB that is there in the video. It has two 555 ic , a NAND gate and a 4027 flip flop. Initially, we had a hard time figuring out how to work the transistors. We have used two relays of 220 v switching, Up to couplers and triacs can also be used. Well it will make the circuit more efficient(i personally prefer triacs over relays for sufficient current switching).

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