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Good morning all
I am new to the forum and hope theres someone who could part some knowledge for me. I am currently doing a 12 volt conversion on my 49 W4 Mccormick. I am replacing the generator with a Hitachi Alternator rather than a delco so I don't need to trim the hood to make it fit. I found wiring diagrams for this conversion but they call for a 1N5404 Diode in one of the wires going to the exciter terminal. I was wondering is this diode serve the same purpose as the Idiot light that is typically installed in delco 12v conversions.
Any info is helpful
Thanks
 

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NO. A light bulb is used as a resistor to drop voltage.
A diode only lets voltage pass through in one direction and must be connected accordingly.
 
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