At DC or low frequency AC, current flows throughout the conductor, so actually you have more surface area (for a given cable diameter) with solid wire than stranded wire for a conduction path. As frequency increases, and we are talking about up in the HF, VHF, UHF, and beyond, current flows on the surface...path of least of resistance. That's why "Waveguides" are effective for microwave frequencies; very low loss, high surface area, signal totally encapsulated.
I had a 4230 with batteries on either side and daisy chained together for 24V, mother deere OEM. Slow starter in the winter. Got tired of that so I made some changes.
I mounted new 12v, size 31 (⅜" studded size 27s) OTR truck batteries, very reasonably priced as the OTR dealer bought batteries by the pallet, 960 CCA each on either side as was the OEM positioning and ran parallel 2/0 stranded wire across connecting the batteries in parallel.....which the OEM truck dealer made up for me at a reasonable price; same wire used on OTR trucks.
From the battery adjacent to the starter, I ran (as short as possible) the + 2/0 to the solenoid input and the - 2/0 mounted under a starter bolt, with the connection nice and shiny and tight such that the lead was in contact with the mounting flange of the starter. This made the lowest conduction path for the least starting current resistance.
I don't need to tell you what a difference it made. All I had to do was be near the tractor and just "think" about starting it and she lit right off on her own......well not exactly, but you get the idea. Grin!
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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