Positive and Negative ground are like right hand and left hand threads on a bolt. On the bolts the nuts turn in opposite directions. With Positive and Negative ground current flows through the circuit in opposite directions.
The battery and charging system polarity must match.
Some electrical devices (such as diodes, ammeters, charging systems, ignition coils) are polarity sensitive, meaning that they are designed so that current must flow through them in one direction. They can work with either ground polarity simply by connecting them with regard to proper current flow direction.
"Ground" is the zero voltage reference point of the circuit so ground itself is technically neither negative or positive. Negative or positive ground simply indicates which battery post is connected as the zero voltage reference
Starters, lights and switches do not care which polarity they operate.
You are not connecting your coil backwards to battery polarity, you are connecting it for proper current flow direction.
You mention being an electronics geek. Therefore I assume you have had some experience with negative voltages in electronic circuits. Guess What...........negative voltages are positive ground.
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 - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
... [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.
