Instead of a light bulb (and maybe a diode) for the "exciter wire" I used a 12v LED in my truck. The LE (Light Emitting) part of the LED comes on bright when the key is on and the alternator is not charging. The D (Diode) part of the LED prevents run-on.
2 birds, 1 stone.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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