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joecitizen

02:24PM | 10/04/06
Member Since: 03/28/05
9 lifetime posts
Bvelectrical
I just recently replaced my upstairs doorbell with a cheap $15 16v doorbell/transformer kit from a home improvement store.

My problem is its a little hard to hear the doorbell on the first floor and Im wondering if it is possible to add a second doorbell downstairs by just taping into the door switch and having the transformer power both doorbells.

Billhart

06:20AM | 10/05/06
Member Since: 04/25/05
1918 lifetime posts
See this thread.

But you want to make the connections at the bell and not at the button.

http://www.bobvila.com/BBS/2_chimes_2_transformers_1_doorbell_button-Electrical-1-T6016.html

If this does not work out because of the problem of runing the wires, there are wireless door bell externders. Google should find them.


joecitizen

11:28AM | 10/13/06
Member Since: 03/28/05
9 lifetime posts
[quote]But you want to make the connections at the bell and not at the button.[/quote]

Im not sure exacly what you mean because at some point I would need to connect to the front door switch/line so when it is pressed both doorbells ring(or ding dong). Maybe a pic would help. This is how I have it setup right now. If I press the front door switch it rings and if I press the side door switch rings.


6403-door_bell

joecitizen

11:38AM | 10/13/06
Member Since: 03/28/05
9 lifetime posts
This is how I was thinking about setting up the first floor doorbell just by tying it in. If I push the front door switch it sends the 16v to both doorbells. If I push the side door switch it also sends the 16v to both doorbells.

Also would sending the 16v directly to the doorbell and using the switches as the return to the transformer work as well just flip flop the + and - as I now have them? or was that what you were trying to tell me to begin with?
6404-door_bell

Billhart

12:41PM | 10/13/06
Member Since: 04/25/05
1918 lifetime posts
That last drawing has it correct.

What I was getting at is at the button you don't have both the switched hot and the return.

Exactly where the wires make contact don't matter. But you want to keep the two (hot and return) too the 2nd bell together. This is not an electrical requirment (not at the voltage and current levels used for a door bell). But it gets very confusing to anybody that runs across this in the future is you have a single wire from the transformer to the button to the bell and to the transformer.

Now clearly those are at the orginal door bell. But depending on how wires are run it they might also be together at some common junction point near the transformer or some point in the attic or basement/crawlspace.

"Also would sending the 16v directly to the doorbell and using the switches as the return to the transformer work as well just flip flop the + and - as I now have them?"

That will work also. For low voltage transformer circuit (unlike 120 volt circuits) it does not matter which lead of the transformer the switch is in.


soupy70

11:20AM | 04/27/08
Member Since: 04/26/08
1 lifetime posts
Sorry to revive an old thread, but the existing diagram doesn't fit mine Here's my proposed wiring diagram with a new 8/16/24v transformer and new 8-10v AC buzzer.

Any thoughts appreciated.
8176-using_multivoltage_t

Woodyh

08:48AM | 05/09/08
Member Since: 05/08/08
2 lifetime posts
The transformer the you have for the 2 doorbells may not be the correct VA rating. Check the door bell to see what it draws.

You can find a transformer at

http://www.gordonelectricsupply.com/index.jsp?path=find&ID=,Edwards.Signal&ds=mfr&process=search&display=thumb&mplIndex=0&more=1&itemsperpage=12&sortby=descriptionAZ&narrowby=&nstr=&pl=&ph=&pagenum=8&start=0
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