Very strange things happen in Morgan circuitry. One example is the cabin ventilation fan. The switch and two speed control is on the mass (earth) side so that the fan is constantly powered when the ignition is on. Get it going at high speed with some of the warning lights (say seatbelt) going and then turn the key off. The fan then turns into a generator and the lights dim down over about 1 second. If the fan is off the warning lights turn off instantly
PS. I don't have any of that circuitry now: it is all hard wired and through relays.
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