xetron per se did not ever make a projector
they rebranded and distributed during there ongoing lifespan cinemecanica century prevost and ernemann all of which parts are available for
You refer to RCA and simplex motors well
I think you probably have a xetron lamphouse with a rca soundhead and simplex projector
but that could be wrong much like the numerous calls regarding theatres with peerless projectors
I would sujest you get your facts togather and if you are not familiar with what is in a booth then hire a technician to determin what you have and what you need