Over a 30 minute test, the voltage would drop about .02v, the amps would drop from 450mA to 430mA, BUT the rpm goes up from around 1652 rpm to 1836 rpm! It's freaking me out.
The input drops and the rpm goes up.I tune the setup by running the motor fast, then adjust the pot to a "sweet spot" where the amps increase if I add or subtract resistance on the input. This is the lowest amp draw with the motor rpm high. (This motor seems to run in only one speed range, or it runs down and stops.)
The changes in voltage, mAs, and rpm all happen gradually and steadily over the time of the test.
Bob
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