Alternator exciter circuit lamp parallel resistor, what size?

[VicS]

Don't know about that - but it works ....
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How would it short out the light ? As you said yourself and I know ... 12v voltage is one way and light is on ... alternator starts charging and that voltage in the excite lead goes to zero based on now alternator is charging ... and any excess voltage as in its 14.8v or whatever over the 12V - the LED sorts anyway

Anyway - I was just commenting - its no use to OP.

Both the warning light and the excitation resistor are fed from the ignition switch. The others ends of both are connected to the alternator D+ terminal. They are therefore effectively in parallel.
If the resistor is replaced with solid wiring that will be shorting out the light.

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[Refueler]

Both the warning light and the excitation resistor are fed from the ignition switch. The others ends of both are connected to the alternator D+ terminal. They are therefore effectively in parallel.
If the resistor is replaced with solid wiring that will be shorting out the light.

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I understand what you are saying ... but pity you are not here - you could see it for yourself ..

Maybe the LED does both ? I'm not about to change it - it works and thatš it ... there is NO resistor