27-12-2022, 06:04 PM
Hi Rupert
As Mike says early cars had the series parallel switch and a single filament bulb. I’m not sure of the date, but around 1928???? Cars had CAV or Lucas lights with double filament bulbs…then by the early 30s a separate side light.
My RK (March 1930) has double filament bulbs, from memory the original incandescent was 5Watt and 35 Watt.
So a double contact bulb holder (Ba 15d) should allow side lights and head lights although both are not very bright. It’s also advisable to run an earth, I use three core armoured cable.
Cheers
Howard
As Mike says early cars had the series parallel switch and a single filament bulb. I’m not sure of the date, but around 1928???? Cars had CAV or Lucas lights with double filament bulbs…then by the early 30s a separate side light.
My RK (March 1930) has double filament bulbs, from memory the original incandescent was 5Watt and 35 Watt.
So a double contact bulb holder (Ba 15d) should allow side lights and head lights although both are not very bright. It’s also advisable to run an earth, I use three core armoured cable.
Cheers
Howard