Movie King S-8

[Steve Klare]

I'm a little fascinated by the "AC or DC" part. I'll admit I forgot a lot of what I learned in high school about electric motors (-if you don't use it...Oh! -the things I've forgotten!), but to me a motor that could operate on AC or DC would be a DC (brushed) motor with a rectifier in front of it.

I know they had some kind of solid-state rectifiers before germanium/silicon diodes late 1950s/early 1960s, but how did they do this in 1939?

(I suppose I could take my own Keystone apart, but it's probably simpler to just ask...)

[Rodrigo Lueje]

Hi, I have been comparing this model with the Keystone and they are not really the same.
What surprises me, as this is the first time I've seen it, is that the Movie King uses a normal 125v, 40w incandescent bulb!!!!
Another thing that strikes me is the huge gap between the projection window and the film passage. An interesting projector....