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Geoffry

> Alex - I have a Mk IX bubble
> sextant and the modern type C batteries
> fit in fine with room to spare.

You mean two of them?

> Do you have a Mk IX bubble sextant

Yes, I do.

> and are you saying modern C batteries do not fit into it?

No, I was not saying this.
I only asked whether it needs one or two C-batteries.

Alex.

> Or are you confusing the British made Mk IX with the American made
> Link A-12, which will not accept the modern C cell?
>
> Geoffrey Kolbe
>
> At 01:44 12/02/2007, you wrote:
>
>
> >Size C won't provide as much amperage over time as the Ds; ie, they
> >won't last as long.  The Ds also can supply more peak amperage, but
> >that usually isn't a consideration with lights.
> >
> >Alkaline batteries usually last longer than carbon-zinc batteries,
> >but there can be subtle changes in size that can make them less
> >suitable.  Everready "Classic" batteries are the old-type carbon zinc
> >for which American instruments would have been designed.
> >
> >Fred
> >
> >On Feb 11, 2007, at 8:04 PM, alex wrote:
> >
> > >
> > > As I understand the batteries exactly fitting this sextant MkIX
> > > are not produced anymore.
> > > What sort of batteries can be used?
> > > My (superficial) investigation shows that C-size batteries
> > > are likely to fit in diameter. How many are needed?
> > > The batteries only have to feed 2 bulbs.
> > > Are these 3 volts or 1.5 volts bulbs?
> > >
> > > In general, what is the difference between size C and size D
> > > batteries? Both are 1.5 volts, but size C is smaller.
> > >
> > > Alex.
> > >
> > >
> > > >
> >
> >
> >
> Border Barrels Ltd, Newcastleton, TD9 0SN, UK
> Tel: +44 (0)13873 76253   Fax: +44 (0)13873 76214
>
>
> >


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