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Here's a summary of John Deere PM alternators:
Output Amps Alternator P/N Regulator P/N Weight LBS
Remarks
20 AM877557 AM101406 4
35 AM877957 AM101406 4 ?
Same device, with internal changes, Uses same Regulator
55 AL81436 AL65077
? Flat pack on back of alternator body Typically
used on 6400L and 6500L Tractor, for running at night with lights.
85 AL81437 AL65077
? Has Overvoltage protection, same P/N as 55amp
85 AL78690 ?
Listed for 6400 series tractor, NO overvoltage protection
David Carter
----- Original Message ----- From: "Marko Bewersdorff" <marko@bewersdorff.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, October 01, 2003 12:07 PM
Subject: [FlyRotary] Re: alternator choice?
I have one of those permanent magnet deals on my Vari Eze, sold by B&C for
$$$ I keep hearing that they are of a Kubota tractor. Mine is only rated
at
14 A or there abouts so my night IFR is kinda like Apolo 13's return to
earth - don't need strobes - don't need the VOR for a little while, etc.
etc.
Marko
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
> Behalf Of Lehanover@aol.com
>
> I saw a permanent magnet alternator on a formula Atlantic car and
> was told it
> was rated at 20 amps. It was from a big garden tractor of some
> kind. Smaller
> than your fist. Running off of a 1/4" wide V belt.
>
> Lynn E. Hanover
>
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