From the google images from "Life" pointed out in a thread in Early Color Television.

http://images.google.com/hosted/life/f?q=television+source:life&imgurl=4438d09e94a6f004

This would be so much fun to play with!

John Y.

Coool
How big is that thing in reality. It seems to have good picture. And whats up with that lense infront of the screen?

And it's not inside a vacuum either?

Very interesting peice to say the least.
Rudy

This is a 1850 Iconoscope, which is about 6 inches in diameter. The thing in front is a lens, focusing an image on the mosaic plate at the rear of the iconoscope. The electron gun (not visible) is located at the bottom of the small diameter tube, and the deflection coils are located at the top of this tube. The white line going from the deflection coils to the mosaic plate is a depiction of the electron beam, probably added to the photograph when the negative was printed.

I guess I should have posted the link that contained the details. The beam was visible because of gas within the iconoscope. Either they didn't obtain a very good vacuum or it was done for illustrative purposes.

http://images.google.com/hosted/life/l?q=television+source:life&imgurl=4438d09e94a6f004

John Y.