If 3 volts got it to run, then I'm bettin' it may be a 12 volt motor. 8 D cells in series will get you 12 volts and there is always your car battery. Another thought is to run down to your local Radioshack and get a 12 volt DC wall wart with at least 800 miliamp rating (the bigger milliamp rating, the better). This should get the motor running. Does the table have a control on it to adjust speed? If so, use a strobe plate to set your speed. Remember, a DC motor will run backwards when wired incorrectly.
If we use Ohms law: I=P/E and make an assumption that the motor draws 2 watts then I=2/12 or I=.1666. So we can be thinking this thing will draw about .16 amps. The problem is start up current (which can be 10 times the run current) and the motor may run at more than 2 watts' especially under load. This is a place to start anyway.
I'm really thinking this is the correct voltage. Lots of companies used Class II wall warts to run their electronics because it took UL out of the picture. All they needed was a UL approved wart and they were done as 12 volt products do not come into UL's radar.
Wayner
