Yes, I prefer to use a charge light on any alternator conversion that excites from the ignition circuit. Not only does the glowing charge light serve as a reminder that the ignition switch is on, but it also tells you that the alternators excite circuit is intact and indicates the alternator is /is not charging when the tractor is running. Using an inline diode is compact and reliable, but it adds a couple amps more current draw to an ignition circuit that was designed only to power the coil, so may cause voltage drop to the coil and weaker spark. Using a resistor or charge light which is just a glowing hot resistor, limits the additional current load to the ignition circuit to about 1/4 amp, which will not add a significant load / voltage drop to the ignition circuit that in addition to warning you if you leave the ignition on and is an easier to spot charge indicator that an ammeter needle. I think the confusion in this thread is that while 1/4 amp of current flow through a light or resistor will excite a Delco SI alternator, connecting one without a resistor or light, either directly or through a diode will "full field" the alternator which draws 2-3 amps and can overload the ignition circuit while starting.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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