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Binary counter using relays

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Uploaded by on Sep 13, 2007

I hooked up eight DPDT relays to make a four bit binary counter and this is used to count pulses from a rotary phone dial. This is actually a pretty old circuit and implements a ripple counter. I have a much better synchronous counter design. More information at http://mindlock.wordpress.com/

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Science & Technology

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Standard YouTube License

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  • this is just great!

  • i actually have a old rotary phone that i will have to try that with. very clever!

  • Man i wish you gave a schematic, thats way cool!

  • awsome ;) great work

  • nice :)

  • hehe a phone dial plus a bunch of relays makes an adder!

  • Nice hack!

  • BAD ASS. I must build it myself.

  • thats pretty cool, nicely done

    checkout my touchscreen controlled relays

    watch?v=LkJUVocW0aM

  • Excellent!

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