Door bell timer using 555 IC?

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Door bell timer using 555 IC?

Yorkie

Senior Engineer in Charge

Posts: 2,861
Reputation: 21
Location: Cottingham East Yorks

#38

06-05-2015, 06:58 PM

I've just had confirmation that the bell transformer is indeed 8 Volts - not 12V as I'd originally thought.

Regards, David.

BVWS Member.
G-QRP Club Member 1339.

'I'm in my own little world, but I'm happy, and they know me here' Cool

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Messages In This Thread

Door bell timer using 555 IC? - by Yorkie - 26-04-2015, 06:21 PM

RE: Door bell timer using 555 IC? - by Ed_Dinning - 26-04-2015, 06:58 PM

RE: Door bell timer using 555 IC? - by Refugee - 26-04-2015, 07:18 PM

RE: Door bell timer using 555 IC? - by Yorkie - 26-04-2015, 07:38 PM

RE: Door bell timer using 555 IC? - by Yorkie - 26-04-2015, 09:53 PM

RE: Door bell timer using 555 IC? - by Ed_Dinning - 27-04-2015, 07:33 PM

RE: Door bell timer using 555 IC? - by Yorkie - 27-04-2015, 08:42 PM

RE: Door bell timer using 555 IC? - by Eddystonepete - 27-04-2015, 09:04 PM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 27-04-2015, 09:22 PM

RE: Door bell timer using 555 IC? - by Yorkie - 28-04-2015, 09:02 AM

RE: Door bell timer using 555 IC? - by ppppenguin - 28-04-2015, 10:41 AM

RE: Door bell timer using 555 IC? - by Refugee - 28-04-2015, 11:57 AM

RE: Door bell timer using 555 IC? - by Aerodyne - 28-04-2015, 03:33 PM

RE: Door bell timer using 555 IC? - by AlanBeckett - 28-04-2015, 05:01 PM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 28-04-2015, 09:09 PM

RE: Door bell timer using 555 IC? - by Yorkie - 03-05-2015, 02:44 PM

RE: Door bell timer using 555 IC? - by Aerodyne - 03-05-2015, 03:54 PM

RE: Door bell timer using 555 IC? - by Aerodyne - 03-05-2015, 04:13 PM

RE: Door bell timer using 555 IC? - by Yorkie - 03-05-2015, 05:19 PM

RE: Door bell timer using 555 IC? - by Keithstv - 03-05-2015, 06:11 PM

RE: Door bell timer using 555 IC? - by Yorkie - 03-05-2015, 07:44 PM

RE: Door bell timer using 555 IC? - by Keithstv - 03-05-2015, 08:18 PM

RE: Door bell timer using 555 IC? - by Yorkie - 05-05-2015, 10:30 AM

RE: Door bell timer using 555 IC? - by Keithstv - 05-05-2015, 11:31 AM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 05-05-2015, 12:10 PM

RE: Door bell timer using 555 IC? - by Yorkie - 05-05-2015, 12:17 PM

RE: Door bell timer using 555 IC? - by Keithstv - 05-05-2015, 12:22 PM

RE: Door bell timer using 555 IC? - by Yorkie - 05-05-2015, 04:14 PM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 05-05-2015, 10:13 PM

RE: Door bell timer using 555 IC? - by John M0GLN - 06-05-2015, 06:04 AM

RE: Door bell timer using 555 IC? - by Keithstv - 06-05-2015, 07:10 AM

RE: Door bell timer using 555 IC? - by Yorkie - 06-05-2015, 08:33 AM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 06-05-2015, 08:49 AM

RE: Door bell timer using 555 IC? - by Nick - 06-05-2015, 01:28 PM

RE: Door bell timer using 555 IC? - by Keithstv - 06-05-2015, 10:16 AM

RE: Door bell timer using 555 IC? - by Keithstv - 06-05-2015, 11:26 AM

RE: Door bell timer using 555 IC? - by Yorkie - 06-05-2015, 06:41 PM

RE: Door bell timer using 555 IC? - by Yorkie - 06-05-2015, 06:58 PM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 06-05-2015, 07:13 PM

RE: Door bell timer using 555 IC? - by Keithstv - 06-05-2015, 08:09 PM

RE: Door bell timer using 555 IC? - by Yorkie - 07-05-2015, 08:59 AM

RE: Door bell timer using 555 IC? - by Keithstv - 07-05-2015, 09:18 AM

RE: Door bell timer using 555 IC? - by Mark Hennessy - 07-05-2015, 09:30 AM

RE: Door bell timer using 555 IC? - by Keithstv - 07-05-2015, 10:04 AM

RE: Door bell timer using 555 IC? - by Nick - 07-05-2015, 11:05 AM

RE: Door bell timer using 555 IC? - by Radio Fixer - 07-05-2015, 05:05 PM

RE: Door bell timer using 555 IC? - by Yorkie - 07-05-2015, 05:27 PM

RE: Door bell timer using 555 IC? - by Yorkie - 07-05-2015, 05:11 PM

RE: Door bell timer using 555 IC? - by Refugee - 07-05-2015, 05:59 PM

RE: Door bell timer using 555 IC? - by Yorkie - 13-05-2015, 02:06 PM

RE: Door bell timer using 555 IC? - by Radio Fixer - 13-05-2015, 04:37 PM

RE: Door bell timer using 555 IC? - by Aerodyne - 14-05-2015, 09:10 AM

RE: Door bell timer using 555 IC? - by Yorkie - 14-05-2015, 05:12 PM

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