1948 Ampro Compact 16 m/m sound projector

I found it in the attic of my high school and asked if I could have it, and they gave it to me. After looking it over i found thatv it just needed a new power cord. All the tubes and other electronic components were fine. In replaced the power cord and boom it worked. I dont think the speaker works but caint be certain because I do not have any film to test with. It has the original schematic on the inside of the speaker housing for the whole projector, it has an auto rewind function, a microphone input and speaker output. It projects a nice clear picture (tested with film negatives). Made of a solidwood construction. It has a volume control and another control with a "T", not sure what it is for. I thas a focus ring on the projector lense. The gears are metal belt drivin. The projector is made of cast iron and painted a dull brown to match the wood box. The box had some sort of fabric covering that is tattered in places.