Quote:
Originally Posted by Old Henry
A horn relay wouldn't work because the primary circuit is energized by grounding only. It can't be powered by an independent power source as relays typically are. It shares it's power source with the secondary circuit.
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I am interested in your statement. With a positive ground horn relay you ground the circuit and the relay closes , the power comes directly from the negative power source to what ever. So what if it shares the negative. If the relay operates a horn why would not operate something else. Not arguing, trying to learn.