Up for sale is a original NOS Philips AC motor,110V,250rpm,50Hz very similar to motors used in many turntables like Linn,Rega,Systemdek.The serial number on this motor is 9904 111 35304,For replacement of a faulty motor you have,please note that if  the serial number is different than what you have on your turntable,then you may have to make small modifications on your turntable.Please do a google search for 9904 111 and download the ''technical data sheet''  file on the Newark website for specifications of different serial numbers of motors starting with the serial number of 9904 111 to see if it can be used for your turntable.This motor is not a direct replacement for the motor 9904 111 31813...This  original Philips(made in Belgium)motor can also  be used  for new turntable projects...I am not sure if they make these motors in Europa any more...Also used at 60Hz supply too with a capacitor...Please feel free to ask any questions you have in mind...