Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

Resistors, what are they for?

Welcome Guest, Log in or Register
Author 
Rob

02-10-2002 18:46:36




Report to Moderator

what is the purpose for a resistor? i havea 1950 8n and somone told me i had to have a resistor on the wire leading to the coil, from the switch. what is it for?




[Log in to Reply]   [No Email]
Dave Smith

02-10-2002 19:06:01




Report to Moderator
 Re: Resistors, what are they for? in reply to Rob, 02-10-2002 18:46:36  
It is a ballast resistor. It cuts the voltage down to 2.5 to 3 volts at the coil. Without it you will burn out the coil.
Dave <*)))><



[Log in to Reply]  [No Email]
Rob

02-10-2002 19:10:57




Report to Moderator
 Re: Re: Resistors, what are they for? in reply to Dave Smith, 02-10-2002 19:06:01  
i have one i put on, i am running a 12 volt system. i checked voltage on the inside and it read 12.5 v. i checked the voltage on the outside and it read the same? this is brand new out of the box. is that right?



[Log in to Reply]  [No Email]
Dave Smith, Yes

02-10-2002 19:20:17




Report to Moderator
 Re: Re: Re: Resistors, what are they for? in reply to Rob, 02-10-2002 19:10:57  
Read the voltage at the top of the coil. With the points open you will have full battery voltage. With the points closed you should have about 7 and 1/2 volts. The difference is what the resistor is dropping.
Dave <*)))><



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy