Timeline for Why is it impossible to connect these two doorbells in series or parallel?
Current License: CC BY-SA 4.0
9 events
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| Aug 10, 2023 at 7:16 | comment | added | Basj | @DavideAndrea I have added an "Edit" at the end of the question with voltages, etc. and more photo of the bell. Does it help for a conclusion? Thanks again! | |
| Aug 10, 2023 at 1:13 | comment | added | Turksarama | Another experiment you can do: With case B switch the bells around. If the same bell rings both times then the other bell may be faulty, if a different bell rings each time then there may be a problem with your wiring. Neither of these is conclusive mind you, but it's a simple test. | |
| Aug 9, 2023 at 23:40 | comment | added | Davide Andrea | Across the transformer terminals. Compare the voltages with no bells, one bell, and two bells connected. | |
| Aug 9, 2023 at 22:55 | comment | added | Basj | "not powerful enough to power both bells, the voltage sags" @DavideAndrea, between where and where should I measure the voltage to confirm that the voltage sags? | |
| Aug 9, 2023 at 22:43 | comment | added | Davide Andrea | As I said: "only one bell is able to ring at a lower voltage". That is, the bells are slightly different. One can make it, the other one can't. Also I said: "or there is an error in your wiring.". | |
| Aug 9, 2023 at 22:30 | comment | added | Basj | Thanks @DavideAndrea. I thought that, if too much current is drawn from one single transformer, then it would heat a lot, but still it would work, at least for a couple of seconds. Here with one single transformer + two bells in parallel, only one bell rings, that's strange. Don't you think both should still work during a few seconds (+ massive heating if too much current is drawn from the transformer)? | |
| Aug 9, 2023 at 17:53 | comment | added | Davide Andrea | " Is there a polarity"? No. They are AC. AC is not polarized. | |
| Aug 9, 2023 at 17:22 | comment | added | Basj | Thanks @DavideAndrea. Is there a polarity to respect to connect both bells in parallel? (Looking at the photo of the bell, I can see a coil in the bell, I don't know if it changes anything in respect to polarity) | |
| Aug 9, 2023 at 16:51 | history | answered | Davide Andrea | CC BY-SA 4.0 |