doorbell wiring

Do All Wired Doorbells Need A Transformer?

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Do All Wired Doorbells Need A Transformer? Do all wired doorbells need a transformer? Is a transformer required for all doorbells? Yes. Doorbells are low-voltage applications and they will not work without a transformer. Does my wired doorbell have a transformer? Doorbells get their power from the home’s electrical system. The doorbell switch has two