Listed in the description of the ebay auction. A power supply and Power Cord are not included with the auction. The Bolex EBM has a couple of power supply options that you will need to address if you purchase it.
Original Bolex EBM power supply/battery charger has an inline push button to activate the camera motor and thus begin filming.
a Bolex Power Grip for Bolex EBM, EL, and ESM External motors has a push button in the grip and houses an internal battery for power.
After Market rigs that use the original Bolex Power Connection with a 12V source and an on/off switch.
There is a link to a youtube video where I demonstrate the unit running with film at all speeds and you can see the power cord I use.
Robert M. Ditto
Creative Director and
Director of Photography
Infinity Focus Productions