Translater needed testing a 24 v coil

I suspect that my igniton coil is going bad. The jeep starts fine and runs like a top until the engine warms up and themn i lose all igniton power and eventually stall out until I let her cool off for a while.
I found the following article that shows me how to test my ignition coil, but I'll be danged if I can put it into simple steps and tool concepts for myself to follow. Any help is appreciated.

HOW TO TEST IGNITION COILS
All ignition coils may be tested by measuring, a) open-circuit spark output, b) passive resistance in the primary and secondary coil circuits, and c) the current rise or "ramp" through the primary windings. The open-circuit spark test indicates a good coil when it produces a bright blue spark that jumps a 1/4-inch gap on a spark tester. This test simultaneously tests the integrity of the triggering system and ignition coil. If spark isn’t present, measuring for a switching action at the negative primary coil terminal is the next step. Because a conventional test light may not detect triggering durations or "dwell times" of as little as seven to 10 degrees of crankshaft rotation on modern ignition systems, the triggering or switching action should be measured with a lab scope or digital multimeter.

Although the resistance test is not a definitive measure of a coil’s electrical integrity, a coil should be replaced if the resistance values don’t fall within specifications. Along those same lines, the diversity of modern ignition coil designs has made ignition oscilloscope analysis more difficult because many ignition coil waveforms deviate from the conventional norm. Consequently, oscilloscope diagnosis shouldn’t be considered a definitive test of ignition coil condition unless it can be compared with a known-good waveform.

On the other hand, using a low-amperage current probe to measure the current "ramp" through the primary ignition circuit is perhaps the most definitive method of determining the electrical integrity of the coil and the quality of the triggering action. Many defective ignition coils, for example, will pass a resistance test, but fail a current ramp test. When testing multiple coil systems, the current ramp gives an excellent comparison of current flow through each coil in the ignition system and usually helps the technician arrive at a more accurate diagnostic conclusion.

 

Besides the 'scope, that sounds like the spark tester and the ramp tester are both specialty tools. It would be cheaper to buy a new coil and have a spare if that's not the problem, or borrow a coil from another car for testing.

I presume this is a military coil with points ignition? A coil isn't that voltage specific. As long as you put some additional resistance in to limit the current, like an extra ballast resistor, it should be fine to test it with a 12V coil. One easy test (middle paragraph) is to use your DMM to test the resistance. The primary circuit is the one that you control with the points (low voltage circuit) - the secondary is connected to the plugs. On a 12V coil, the primary is the two little terminals on the top of the coil, and the secondary is from the center tower (HT lead) to the plug, and back to the case of the coil.

Darn 24V electrics are too expensive to mess with much.

 

Thanks, I pulled the coil and tested the resistance with a volt meter, but I can not find anywhere in my manual what the resistance level should be measuring. Does anyone happen to have these specs in their manual?