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 https://i.sstatic.net/MIHKT.jpg

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.

  • \$\begingroup\$ "pre-internet" would mean it isn't BLAC or BLDC. The "transformer built around hte motor looks like the back iron of the stator. \$\endgroup\$
    – user16222
    Mar 9, 2014 at 16:23

1 Answer 1


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.

enter image description here

Only question is - what was the AC supply voltage to the projector - 220V or 120V. This is answered in the user guide - 120V, 60Hz.


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