Re: Re: Conversion to Negative Earth

I believe from the Lucas tech information that there is a difference between +ve and -ve coils. I need to check on the theory when I have time but, basically, when you break the primary circuit a reverse voltage is developed in the primary winding and, if the polarity is correct, it boosts the secondary voltage. If incorrect, it opposes it. I am not sure whether swapping the coil connections sorts this out or not. As I said, I must have a look at the theory.

However, it seems that, in practice, the difference is not enough to worry anyone. I will continue with -ve earth and worry about it if I have a problem.

Thanks to all for the feedback.

Roger