> > > I'm still having trouble with my alternator warning light.
I know we discussed this before, but would someone refresh my mind?
Currently I have an LED in the circuit as the warning light. It doesn't go
out. Buss voltage seems fairly stable at 14.2v with engine running. Do I
need a regular bulb rather an LED, and what are the specs of the diode shown
in the schematic?
John Slade (hit 25 mph last night) < < < Hi John,

This sounds amazingly like the problem I encountered on the Eagle540 project. We have a B&C voltage regulator and use a Proprietary Software Systems annunciator panel (that incorporates LEDs) for our bank of idiot lights.  The "Electrical" lite would lite up at full brightness any time the master was on and the alternator wasn't producing charging voltage, as it was supposed to. When we would start the engine and power up the alternator, however, the "Electrical" LED would still be illuminated, albeit at a much lower level... ie, the system was charging but there was enough leakage through the indicator lamp circuit to keep the LED partially energized.  I spoke with B&C about the problem and was advised to add a 510-ohm resistor between the indicator output terminal and another one on the regulator (I'll let you know which one later), and the addition of the resistor solved the problem.  I don't know what your charging/annunciator system looks like, but I'll bet your solution will be similar to mine.        <Marv>