On 29/11/2024 14:00, Hal Cain wrote:
Can someone explain what changes were made to the lighting circuits to accommodate those two extra bulbs for the headlights? Standard headlights had one, dash canopy had three. Melbourne practice for lighting circuits was 6 x 120 volt globes in series per circuit (the nominal supply voltage being of course 600 volts, but running bulbs at less than the rated voltage was supposed to let them last longer). More bulbs in a circuit would make them dimmer.
It seems that each dash canopy had 6 lamps and each end was independently switched - see attached diagram.
So there was plenty of lighting - but a green dash was not a great reflector.
What that diagram does not show is how the 'missing' headlight was compensated for in that circuit.
Mal Rowe - noting that the switching would allow both ends or neither end of the dash canopy lights to be on.
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