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The key is the door bell specification. They typically run on a 24 VAC transformer. You can certainly hook it up and try it with 9 volts, but it probably won't work as intended. 24 Volt Transformers are relatively cheap.
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Can you substitute 12V. AC 40va Transformer for 12V. AC 1000ma. Home service-out door fountain?
Yes, the output current of a 40va transformer at 12 volts is 3.33 amps. The replaced unit had an output of 1 amp making it a 12va transformer. By doing this exchange there will be three times the capacity of the new transformer over the old transformer.
How many amps will a 20VA transformer provide?
To answer this question a voltage is needed. I = 20/E. <<>> Each device powered by the transformer will have a rating of draw also in VA. So many for a t-stat, so many for zone valve or damper etc... add em up, make sure transformer is over and you re good. 20 VA is not very big. door bell transformers are around that size. most hvac systems need 30, 50, 70 or more VA.
Who invented door knockers?
The man who got the first No-Bell prize
What is the advantage of aluminum door and disadvantage of steel door?
The aluminum door is lighter and less expensive than steel door.
What is a door sill?
Door Sill - A horizontal beam below the door that supports the frame Source: http://en.wikipedia.org/wiki/Door#Doorway
Can you use the same transformer for door bell and smoke detector?
Umm let me think. NO!
Can you power a 12 volt dc indicator light from a 16 volt ac door bell transformer?
No, the 12 VDC light must have a DC supply and the transformer voltage as well as being 16 volts which is too high, the output is AC.
How do you wire 2 door bells together using one button?
You need to be sure to use only one power supply (generally a hard wired transformer) to power both door bell units. Power needs to be switched to each door bell from the one button, switching just one side of the power supply output.
How do you say door bell in Tagalog?
Tagalog translation of door bell: batingaw ng pinto
What is an electric bell used for?
it is like a door bell
Who invented the door bell?
Gandeton
Can Dry Type step down Transformer be put out door?
It is not a good idea to place an indoor, dry type transformer in out door. In outdoor it may subject to rain etc, for which it may not have been designed to.
What is the result you should see if there is a magnet in the doorbell when it is connected?
put a magnet up to the door bell
What year was the door bell invented?
=== === the answer is 1831
What is that thing it your ding a ling?
A door bell
What tells when guests arrive?
door bell
How does a door knob work?
As you turn the door knob it retracts a bar that inside of the locking magnesium that puts back the bolt that's in the door frame...
