https://www.youtube.com/watch?v=Bs5l39WsnKo
While not jukebox related, I found the skill and dedication of this older engineer to be awe-inspiring and, at the same time, poignant. This engineer is of a time when (mostly) men built their own Ham rigs and hi-fi equipment. I was fortunate to have met a few people with these skills and knowledge. Those old friends inspired and educated me.
The IKE as it was called was the first all-electronic camera tube and was developed in the early 1930s. Commercial broadcast of TV commenced here in the USA around 1938.
IKE's required an intense amount of light, but as you can see, they were capable of stunningly clear images.
During WW2 the Image Orthicon and British Emitron were developed with featured far greater sensitivity. Some versions of the Orthicon had an ASA equivalent of 10,000! these were the standard from around 1946-7 till the mid-late 1960's here. I summer 1983 I tried to buy a complete RCA TK41C (3 tube Orth color) camera chain in working condition from a TV station in Montana...but they were still using it!
Here is a shot of a Orthicon from my small collection:
http://s1192.photobucket.com/user/Rob-N ... rt=2&o=152
Rob/NYC