I was specifically hoping to power it by paralleling 5V lines from the
Teensy, a microcontroller that uses the Arduino language. Unfortunately, I hadn't actually checked any specs before asking, but seeing the specs on the motors now (7.2V, 4.8A stall), I'm rather reluctant to even try that theory out.
In any case, for curiosity's sake, how would the 393 be controlled by toggling a 7.2V power supply? Would it be the same type of pulse modulation used on regular motors, or does its construction require a different type of signal?