A Class B has the other end of the Field windings internally grounded.....On a Class A the fields get their ground via the VR's field current control relay then to ground....... You regulate a Class B by regulating the voltage on the VR's FLD terminal,,On a Class A you regulate by regulating the ground on the FLD terminal. SEE MY POST ABOVE for more info...
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Today's Featured Article - New Hitches For Your Old Tractor - by Chris Pratt. For this article, we are going to make the irrational and unlikely assumption that you purchased an older tractor that is in tip top shape and needs no immediate repairs other than an oil change and a good bath. To the newcomer planning to restore the machine, this means you have everything you need for the moment (something to sit in the shop and just look at for awhile while you read the books). To the newcomer that wants to get out and use the machine for field work, you may have already hit a major roadblock. That is the dreaded "proprietary hitch". With the exception of the
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