Can anyone please confirm whether the red, screw in, charge warning lamp on a 1990 vintage Perkins Sabre
135M main engine control panel
incorporates an alternator
excitation diode or not?
I'm being told by our boat
yard that having checked the alternator
that a faulty bulb/diode is the cause of our battery charging
problems. However, I'm rather skeptical, as I can find no mention anywhere that the lamp incorporates a diode.