[Healeys] Ballast resistor wiring question

[Michael Salter]

I can't quite figure out how this type works?
It appears to me that there would be constant power to the "L" terminal
meaning that the lamps would not flash ... what am I missing?
[image: image.png]


Interestingly here is the Lucas version.

[image: image.png]

This type is quite clever for 1953 ... If there isn't sufficient current
flow through the coil the coil does not pull the pilot points closed so
when 1 bulb fails the pilot lamp does not flash.

M
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