[AT] question on use of resistor on coil

[George Willer]

Only if the circuit is under load and current is flowing through the 
resistor.  On open circuit it will read battery voltage whether there is a 
resistor or not.

George Willer

----- Original Message ----- 
From: "Almost-Running Deere" <deereman1000 at hotmail.com>
To: <at at lists.antique-tractor.com>
Sent: Monday, October 25, 2004 11:19 AM
Subject: Re: [AT] question on use of resistor on coil


> If one takes a volt meter to the output terminal of the coil once can 
> determine if the coild is reduces the voltage or not.
>
>
> Dana
>
> SE PA
>
>>From: "charlie hill" <chill8 at cox.net>
>>Reply-To: Antique tractor email discussion group 
>><at at lists.antique-tractor.com>
>>To: "Antique tractor email discussion group" 
>><at at lists.antique-tractor.com>
>>Subject: Re: [AT] question on use of resistor on coil
>>Date: Sun, 24 Oct 2004 11:14:25 -0400
>>
>>Cecil,  I haven't been following this thread closely but some of the Delco 
>>Remy coils are internally resisted.  They don't need a ballast resistor, 
>>take 12 volts from the battery but send 6 volts on the small wire to the 
>>points.
>>
>>Charlie
>>----- Original Message ----- From: "Cecil E Monson" <cmonson at hvc.rr.com>
>>To: "Antique tractor email discussion group" 
>><at at lists.antique-tractor.com>
>>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
>>>
>>>_______________________________________________
>>>AT mailing list
>>>http://www.antique-tractor.com/mailman/listinfo/at
>>>
>>
>>
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