Mine says "positive earth" on my 67.
Bill Dudley
67 B Original Owner
Max Heim wrote:
> My original tach said "positive ground" right on the face in tiny letters.
> Take a closer look. I suppose after they went to negative ground they
> stopped this practice.
>
> on 4/26/01 9:31 AM, frank krajewski at frankk@intap.net wrote:
>
> > I am doing my annual spring cleaning and finally sorting thru the parts
> > I bought at Carlisle last year and the year before. Just in time to
> > amass even more this year. My question: How do you determine the
> > polarity of a tach? I have many and some are from earlier MGBs that are
> > positive ground while the later (1968 +) are negative. The tachs from
> > the 3 main bearing MGBs (1962 - 1964) are simple as they are mechanical.
> > I want to tag them, which I should have done a year ago when I first
> > arrived home and the data was fresh in my mind.
> > Frank "Swamp Yankee" Krajewski
> > www.bmcne.com
> >
>
> --
>
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the red one with the silver bootlid.
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