Quote Originally Posted by Whiteymorange View Post
There were a lot of slide projectors in the 50's and early 60's that had changeable single-slide shuttles–35 or 2 1/4. I have one somewhere- they're pretty cheap if you can find them.
That's true Whitey but the problem with many of them in my experience is they have Tungsten illumination and produce yellow/orange light and their lamp houses tend to leak light where more modern versions use Quartz Iodine lamps that give much whiter and brighter illumination.