Remember the old type charge / discharge ammeters, where used a couple
of turns of cable which used to sometime be fitted to vehicles ? I have
one fitted to the tractor mower which is not marked + and - and I'm
sure it reads the wrong way. The needle goes left when on charge, I
seem to remember the norm is to move to the right.

Can anyone remember, before I take steps to correct it?

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk