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Farmall & IHC Tractors Discussion Board

Re: SA electrical problems...final clarification needed


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Posted by John T on November 06, 2009 at 12:55:40 from (66.244.97.31):

In Reply to: Re: SA electrical problems...final clarification needed posted by rvirgil_KS on November 06, 2009 at 11:42:18:

GREAT POST, THANKS I ENJOYED IT

I just gotta dig to see if I can find that article with scope traces and info about the ringing oscillation and energy transfer between the condensor and coils primary and an explanation of why the spark is greater then if no condensor was there.

Of course, if the condensor is too big, theres NO spark, you dont get the fast enough collapse of the coils magnetic field CONVERSELY if its too small theres still a spark, albeit it weaker (plus points burn up fast). The rating of the condensor and inductance of the coil is precisely matched to achieve max spark energy (and prolong points life) (has to do with the time constant and the rate the magnetic filed collapse) and that LC circuit to me is different if the energy suckin/wasting ballast is located BETWEEN coil and points/condensor which changes the whole RLC circuit dynamics and the magnetic field collapse rate.....

BY GOLLY IM STILL RECOMMENDING ITS PLACEMENT BEFORE THE COIL heck even if it dont matter, Im an old fuddy duddy conservative and alwayssssssss seen them placed there and plan to continue the tradtion

GREAT DISCUSSION, THANKS

Ol John T


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