Ford 9N, 2N & 8N Discussion Board|
Re: Re: Re: Resistor or voltage reducer?????
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Dell (WA) on October 25, 2000 at 08:10:59 from (184.108.40.206):
In Reply to: Re: Re: Resistor or voltage reducer????? posted by rbell on October 25, 2000 at 05:25:45:
rbell.........most ignition coils are designed to run on about 3 amps, no matter what the battery voltage is. Its kinda an ignition points area thing. The more current a switch has to pass, the bigger the switch contacts must be.
And then there is ignition transformer design, which is several levels of college courses on electro-magnetic theory, coil inductance, how to manufacture, etc.
Remember too, the infamous ballast resistor concept. An inverse resistance dependant upon tempature. Fords "better idea" to provide a "hotter spark" at start-up with a cold engine and a cold battery and cold outside tempatures. Battery power is reduced with tempature. Battery power is reduced with heavy current draw of a starter. Pretty soon there isn't enuff 6 volt battery power to power the ignition system at start-up. Vola' the ballast resistor, that automagically changes value with tempature.
Myself, if I were to convert to 12 volts, I'd use 12 volt designed ignition coils. Using a 12 to 6 dropping resistor is just a cheep way to convert to 12 volts.
But for the electrically challenged and the parts counter person challenged, asking for a 12 to 6 dropping resistor is a whole lot eazier than whipping out any form of electronic voltage regulator. But you can if you want to (grin)..........Dell
|Fast Shipping! Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]|
| Copyright © 1997-2018 Yesterday's Tractor Co.|
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