|
Ford 9N, 2N & 8N Discussion Board |
Re: Re: Re: Re: Re: Resistor or voltage reducer?????
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Dell (WA) on October 25, 2000 at 12:02:58 from (4.54.65.146):
In Reply to: Re: Re: Re: Re: Resistor or voltage reducer????? posted by rbell on October 25, 2000 at 10:29:02:
rbell.........need a refresher course on wetcell batterys? (grin) Basically, batterys change chemical engergy to electrical energy and store electrical energy as chemical energy. Amount of power (amps) is a function of plate area. Voltage is dependent upon type and number of cells. Wet cells produce about 2.1 volts, dry cells about 1.5 volts. Chemical reactions generally depend on tempature. ie...cold batterys (-20 F) are slowwww w w w ..w ...w Cold engine oil? drags the rotating masses. Starter needs more power (amps). As starter demands more amps from cold battery, the battery can not produce enuff amps, this shows up as lower battery voltage. Lower battery voltage, lower sparkies. Just when you need hotter sparkies to start that unvaporized gasoline. Howsomever, behold the automagical "ballast resistor" that has lower resistance when cold and more resistance when hot. Just what the coil needs, more power. Vola' hotter sparkies, rumpa, rumppa, rummmmppppaaaaaa, chugga, chuckggaa..... Solid state regulators still need to disapate the "unused" or excess power. That is, if you design a regulator for 6 volts at 3 amps output and your source is 12 volts, then the source must also provide 3 amps. Sumptn' about laws of conservation of energy. Kerchoff Laws, Ohms Law and a bunch of lawyers. Low Tech devices like "ballast resistors" do this extreamly efficently, with acceptable tollarance, and cheep........Dell
Follow Ups:
Home
| Forums
Today's Featured Article -
What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
Copyright © 1997-2024 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 HeadquartersWebsite Accessibility Policy |
|
