alt.energy.renewable

On Aug 30, 11:37 pm, clare at wrote:
> On Thu, 30 Aug 2007 16:42:51 -0700, Tater wrote:
> >On Aug 30, 10:32 am, gearhead wrote:
> >> > Cars used to have permanenet magnet generators
>
> >> Which cars? Are you sure?>From what I know of antique vehicles with dc generators -- series-
>
> >> wound, with segmented commutators -- they did not use magnets. I
> >> speak from my experience with antique Harleys and GM trucks.
> >> The only vehicles I know use magnets are motorcycles, and they use
>
> >your experience needs to be corrected. yes they had commutators,
> >because the magnets were in the case, not the armature.
>
> >had some nice suckers in there, most autoshops pulled em out to use
> >for welding magnets
>
> In north america virtually NO automotive DC generators had permanent
> magnets Up untill only a few years ago, not even automotive STARTERS

odd, I could have sworn that we would store screwdrivers and wrenches
on the generators while working on cars. must have been magic pixie
dust that let them stick

also remember trying to pull them apart to clean commutators. the
shafts seemed to have an unexplicable attraction to the blocks of
metal on the motor casings, you know, where the feild coils would be
in an alternator.

you are talking about the north america on earth, right? fords,
chevys, and such from the 60s and 70s? generators that were about 3
times as long as delco alternators and maybe 2/3s the diameter?