Posted by Janicholson on September 29, 2015 at 20:41:04 from (63.152.206.138):
In Reply to: 8n Alternator posted by FlatFenders on September 29, 2015 at 20:16:11:
Most enclosed (typical) amp meters are based on an internal shunt conductor of known, but small resistance. This resistance is bridged with a much smaller wire connected to the meter coils. The ford type is OK and cheap to make. it uses the magnetic inductance of the wire across the back to move a permanent magnet inside. the needle is spring loaded to the Zero, and current passing one way, or the other, pushes in opposition to the magnet on the needle causing movement. Charge rate testing meters for diagnosis that are put against the wire from the alt (or any wire with DC in it) work this way. Jim
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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