Rusty FWIW I have (more then once) used 6 volt generators on a 12 volt system BUT re equipped with a 12 volt voltage regulator AND IT WORKED AND KEPT THE BATTERY CHARGED yayyyyyyyyyyy
NOTE I'm NOT saying that's engineering correct and there can be a risk if too much field current is allowed to overheat the fields they may be damaged. IM ONLYYYYYYYYYYY SAYING IT WORKED so don't anyone flame or have a calf now lol
A Generator increases it output by EITHER pumping more current through its Field Windings which increases the electromagnetic field strength orrrrrrrrrrrrr by turning it faster. Regulating field current is one job of a voltage regulator.........Of course as you well know some older tractors didn't use a full fledged precise Voltage Regulator, only a cutout relay system maybe with a manual Low/High charge control switch which controlled field current thus output......
HOWEVER of course a charging system of the correct matched components is designed to produce X volts at X amps without overheating or damaging the components. IE they manufacture 6 and 12 volt generators and voltage regulators ya know BUT if you can pump more current through the field windings (by whatever method or means), you're gonna get MORE output...
A so called 8 volt battery consists of four cells of 2.1 volts each in series for a total (subject to temp and charge state) of 8.4 volts. In order to pump current through and charge it the system is gonna have to have sufficient capacity and energy to raise the batterys voltage WELL DUH and for an 8 volt battery that's NOT 6 or 7 volts another WELL DUH but you already know that......
Fun chattin with you Rusty, take care now I enjoy your postings.........
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