Re: (ET) New ET owner

["David Roden (Akron OH USA)" <roden ald net>]

On 21 Dec 2002 at 21:02, Seth wrote:

> Is there a web page that best illustrates the differences
> between the E-12s, E-14 and the E16?

Congrats on joining the ET club!  Here's a ^little^ information for you:

http://www.elec-trak.org/memorbilia/1974etlineup/1974gelineup.gif

Looks like the E16 has more forward speeds than the E14.  Presumably it 
has 
a bigger motor.  The frame looks identical.  Maybe someone else knows 
more.  
I don't see the E12s on this page, unfortunately.

The E12s, E14, and E16 are later GE tractors.  I think I recall reading 
(or 
hearing) that at least the E12s and E14, and maybe the E16 too, had 
permanent magnet motors, instead of the wound-field motors used in the 
earlier E12/E15/E20 tractors.  That would make them more prone to damage 
from overheating, and pose additional challenges when working on the motor 
(careful not to crack those magnets).  I might be remembering incorrectly, 
though.


David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
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