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Is there a simple way to find out what voltage my doorbell uses if I don't have a volt-meter? Is there a usual voltage for a 50ies era ringing doorbell?
Thinking about connecting a piezo buzzer to the contacts so my doorbell doesn't sound the same as the neighbor's, or connecting a Raspberry Pi to it so my phone can know when the doorbell is rung. #tw
I guess from googling 8V seems to be the standard current for a doorbell. Also seems what all the doorbells in online shops here seem to be, so I guess that's standardized, surprisingly.