In order to do an apples-to-apples comparison, you'll need a means to measure both speed and torque (i.e. a dynamometer). For the ac motor you'll also need a means to measure the phase angle, such as a phase angle voltmeter or oscilloscope. Simply hooking up the motors to some load and measuring their current draw won't tell you anything about their comparative efficiency.
I guess I don't understand the need for household circuit breakers and switches rated for DC.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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