Hello. Bought a house. My doorbell chime works. I have DC wires (white and red) that run to my front door where the doorbell goes. The problem is that there is no transformer. If I touch a 9V battery to the transformer and doorbell terminals on the chimes, it chimes. My question is: Is it ok to make a battery powered doorbell with just the doorbell as a switch to close the circuit? If someone (or nature) holds the doorbell down, is that short circuit (which is the same short that pushes the solenoid into the chime) ok? or will it overheat, and burn my house down?
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from DIY https://ift.tt/355bskJ
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