Posted by jeffcat on January 19, 2018 at 22:44:07 from (50.207.7.238):
In Reply to: Re: Trivia questions posted by TomH in PA on January 19, 2018 at 18:42:02:
When they open. Now if you want the answer it is when the 12 volts or six volts, or the rotor in the magneto, what ever. The electrical primary field collapses. This induces the field in the secondary coil that produces the HV Spark. When the points close the primary builds up very quickly, and it also charges the capacitor. The cap. is kinda like a buffer so the points don't arc to much when they open. Buttt when the points open, that field collapses even faster. Hope i have this correct. Theory is a little mind exercise at one in the morning. Amyone else want to jump in? You want to play with something that can really fry your finger tips, play with a Model T buzz box. Really old tractors that were painted gray had them. Six volts to a button on that little wood box and a whole bunch of thousand comes out the other button. Have a little set of reed like points that buzz. A very angry bee of a buzz.ZAP!
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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