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Cathode Ray Tube Worlds Smallest? Second Version

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Published on Jun 12, 2007

More info is now available. http://www.sparkbangbuzz.com/crt/crt6...

"Cathode Ray Tube 2 Worlds Smallest?" received numerous comments questioning its status as the worlds smallest CRT so I have made "Cathode Ray Tube Worlds Smallest? Second Version". Notice the question mark at the end of the title. I am not making claim to the worlds smallest, I am merely asking the question.

The outside diameter of this CRT is 3 mm (less than 1/8 inch). Actual working screen diameter is 1.8 mm because of the wall thickness. This CRT will fit loosely through a 1/8 inch hole.

Deflection is with magnetism.

These cathode ray tubes are very simple and easy to make so making them very tiny is not a big challenge. I made this one the size it is for the fun and curiosity of seeing if it would work, and I couldn't let all the challenging comments received with the first "Cathode Ray Tube 2 Worlds Smallest?" video go unanswered. The most challenging part of this project has been in getting good video's of it in operation.

Made mone music skower.

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