Lots of new pictures here.
This is a servo motor driven rotary table Troyke U12PNC.
I thought that it was a simple servo motor with a tachometer and encoder on the back. Nothing could be further from the truth. When I opened it up, the tach was on the back alright, but no encoder.
I took off a box hanging on the front of this contraption and I think this is where the encoder is. There are two cylinders.
One is called "Electro-craft moving coil tach generator". Part0100-00-022.
The other is "Summit engineering, Boseman MT. Model 573-211-10, 2500 Hz, rotor 1 phase, stator 2 ph, spec code H.S.C.T., 11BRW-300-70/10."
Does anyone have AN idea just what are they and whether I can use it as a quadrature encoder.
On the rear of the motor, there is not enoug free hanging shaft to mount a modern encoder.
My uneducated guess is that it is a "resolver".