I recently stripped a motor out of an old 2887-z gaf dual-8 mm projector. I'm not even sure if the motor AC or DC, although I suspect its a brush less ac motor. Unfortunately, I disposed of the connections between the chord and motor without analyzing what they did to the power – although I was under the impression they didn't do much.
I've included images of the motor – there's a large transformer built around the motor.
Q: How do I determine the motor's power needs and characteristics so that I can buy a power supply?
motor images
http://imgur.com/a/i1Z5c
user guide
http://www.atsrentals.com/docs/8mm-Projector-Manual.pdf
other:
the motor is very pre-internet age so I am unable to locate specs. but I thought I shoud mention there is a serial number "846-542" paint stamped onto the secondary winding and a "J" "R" stamped on either side of the motor.
Best Answer
The motor looks like a shaded pole AC induction type - very efficient and very quiet. Similar to this one from http://www.indiamart.com/lunar-motors-pvt-ltd/ac-shaded-motors.html - SPM61 series.
Only question is - what was the AC supply voltage to the projector - 220V or 120V. This is answered in the user guide - 120V, 60Hz.