Game Consoles PS2 - XBox - Nintendo

[axebox]

I inherited the Logitech Driving Force for PS2 from work but I didn't receive an AC adapter with it. I tried using a 9v 100mah adapter which enabled it to power on, but the feedback is very, very light. I wonder if this is the right speds for the adapter? Should I use a higher voltage or mah rating? What adapter does this wheel usually come with?