Posted by JMOR on April 09, 2009 at 07:20:08 from (72.181.158.237):
In Reply to: Farmall 460 coil posted by Allan In NE on April 08, 2009 at 06:53:45:
I've never opened one up that wasn't copper wire. I have no doubt that they all use copper wire of varying gauge, turns, length to achieve the desired properties. A surprise to many is that the use of an external resistor actually has a stabilizing effect on coil current, helping to keep it more constant as it's copper wire resistance increases with temperature, than no resistor and copper windings only. This very likely has a lot more to do with the industries use of resistor plus coil than the idea that they just added the resistor in order to be able to use same old 6v coils on 12v systems. It also made it nice to be able to bypass the resistor during cranking when starter drags battery voltage from 12 down to perhaps 8 or 9 volt range or from 6 to maybe 4.
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 ]
Today's Featured Article - Field Modifications (Sins of the Farmer) - by Staff. Picture a new Chevrolet driving down the street without it's grill, right fender and trunk lid. Imagine a crude hole made in the hood to accommodate a new taller air cleaner, the fender wells cut away to make way for larger tires, and half of a sliding glass door used to replace the windshield. Top that off with an old set of '36 Ford headlight shells bolted to the hood. Pretty unlikely for a car... but for a tractor, this is pretty normal. It seems that more often than not they a
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
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.