[AT] question on use of resistor on coil

[Bigdog]

Cecil, 
    To answer your original question:  The ballast resistor should be used when using the coil on a 12 volt system.

Bigdog
  ----- Original Message ----- 
  From: Cecil E Monson 
  To: Antique tractor email discussion group 
  Sent: Saturday, October 23, 2004 5:05 PM
  Subject: Re: [AT] question on use of resistor on coil


  What gets me about this business, Charlie and Dean, is that
  the coil I just tried is listed as a direct replacement for not only
  AM791T but also for Delco Remy 1115379. I am just smart enough to know
  that something is fishy with this as this coil, #AM373T, is also listed
  in the Parts Catalog for my JD 2010 as the correct coil and we all know
  the 2010 was never anything but a 12 volt system.

  When you go to a JD dealer today and ask for a new coil for the
  40 or the 420 or the 2010, this is what you are going to get and whether
  you have a 6 volt system or a 12 volt system doesn't matter to the parts
  man.

  Getting back to my original question, are we supposed to use a
  resistor with the coil in a 12 volt system or when used in a 6 volt
  system?  I think the 12 volt system needs the resistor, not the 6 volt
  but the instructions say boldly on the box "must be used with a resistor"
  which is what puzzles me.

  FWIW, Dean, I have full sets of manuals for all of my JD tractors
  - all three of them. grins. I bought the manuals shortly after I bought
  each tractor so they would be as current with the model as possible.

  Cecil
  -- 
  The nicest thing about telling the truth is you never have to wonder
  what you said.

  Cecil E Monson
  Lucille Hand-Monson
  Mountainville, New York   Just a little east of the North Pole

  Allis Chalmers tractors and equipment

  Free advice

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