Do you remember when...

- this was the height of modern technology?
- all equipment was built from die cast metal components, not plastic mouldings?
- all slide projectors had slide carriages like this?
- we used slide film?
- we used film?

The main use for this projector now is as a light source when demonstrating various principles of optics.

(And it weights a ton - a real muscle builder when I'm moving it from the prep room to tbe labs.)