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    Starcar1's Avatar
    Starcar1 Posts: 2, Reputation: 1
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    #1

    Aug 19, 2010, 09:29 AM
    What size diode for doorbell
    I have a Westminster door chime. I need to replace the diode. What type of diode do I need.
    Starcar1's Avatar
    Starcar1 Posts: 2, Reputation: 1
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    #2

    Aug 19, 2010, 09:34 AM

    I have a Westminster door chime. What type of diode do I need.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Aug 19, 2010, 10:26 AM

    Where does this diode go?
    How big is it?

    Can you see any markings like 1N400x, where x is 1, 2 or 3 which would be my first guess. A 1n4001 would probably work. The x is related to breakdown voltage, so a 1N4001 is a 50 V breakdown. It's also a 1 amp diode. This is about 1/8" in diameter.

    A 1n540x series is a 3 Amp diode and is about 1/4" in diameter.

    Radio Shack should have them.
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