relay diagram

Dec 13, 2003 2 Replies
S

Hello



I am trying to fix an old doorbell and hope someone can assist with an idea for a relay that goes on and then off around once a second. I was thinking that if a capacitor was connected to the relay would'nt that work with the capacitor charging up, closing the relay and then running down and the relay opening.



Thanks in advance



Smokeyone


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W

In article , snipped-for-privacy@btopenworld.com mentioned...

First off the cap would have to be very large. And since the doorbell is likely running off an AC transformer, the cap would not charge up. The circuit would have to be changed to run off DC to charge it.

YWIA

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You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it:
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S

Thats scuppered that idea. The bell can run off batteries, it works on

12v or even less but needs a on off pulse.

Smokeyone

to e-mail me, delete mail from address

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