Hal, while that is possible, the Alnico magnets used in the H4 and J4 series mags really holds it's magnetism, and while not impossible, it is rare that I see an H4/J4 where the magnet is weak enough to require recharging. On the iron horseshoe mags, absolutely. Over time, they will weaken. Interesting thing about those is, however, that they get better with age, meaning their ability to hold their "charge" gets better with time. So, when you do recharge one, they hold it longer as they get older. It is interesting how that works. to John's point, if anyone would like to understand the different types of iron crystalline structure, and how those different forms, and crystal orientation effect the magnetic properties, ask. Will be happy to share! That is why you can heat a piece of iron or iron based alloy to a certain temperature, and it will lose it's magnetic properties.........until it cools down again. All good stuff.
John, I know EXACTLY what you mean. People get their knickers in a knot pretty quickly. That is part of the problem with these online boards. People can't hear the inflection in your voice.......they can't see the expression on your face. so, people can take things the wrong way really quickly. I have been doing mechanical work for over 40years (first for a living, and for the last 30 years on the side), and I still learn something new in discussions like these each time they happen.
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 - Memories of a Farmall C - by Monty Bradley. When I was a child, my grandparents lived on a farm owned by a Mr. Walters. The crops raised were cotton and soybeans, with about forty head of mixed breed cattle. Mr. Walters owned two tractors then. A Farmall 300 on gasoline and a Farmall C, that had once belonged to his father-in-law, and had been converted from gasoline to LP Gas. Many times, as a small boy, I would cross the fence behind the house my grandparents lived in and walk down the turn row to where granddaddy would be cultivati
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
