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Cathode ray tube 2 world's smallest?

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Uploaded by on Sep 26, 2006

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

World's smallest cathode ray tube? No, see http://www.youtube.com/watch?v=f17RZjBecCY
This homemade Cathode Ray Tube uses a cold cathode and is displaying a Lissajous pattern. Vacuum is somewhere between 100 - 200 microns, easily attainable with amateur equipment. Deflection is with magnetism.

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Uploader Comments (nylesteiner)

  • Erm, I think the claim of world's smallest CRT has been taken as the last camcorder I took apart that used a CRT viewfinder was pretty tiny, about 2" length tube... :S

    Unless you mean the world's smallest home-made CRT... :S

  • This was a question not a claim as the question mark at the end suggests.

    I later made a much smaller CRT. Look at Cathode Ray Tube Worlds Smallest? Second Version.

  • The viewfinders in my panasonic ag-186 video cameras

    have a CRT screen measuring approximately 1/2 inch by 5/8 inch. This is still brilliant however.

  • This CRT is .459 inch diameter, smaller than the 1/2 by 5/8 inch viewfinders. Since this one however, I have made a smaller CRT and put a video of it on Yutube. See Cathode Ray Tube Worlds Smallest? Second Version.

  • Impressive, but I really don't think this is the smallest by any stretch of the imagination. The original Sony Watchman had a CRT tube that not only appears smaller (it has been a few years since I took one apart though), but was a completely functional B&W TV.

  • This is precisely why there is a question mark at the end of the title.

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  • Bigger than the other one,but the same AWESOME!!! How do You create these?Did You use only home made items?If You did,could You please provide me with some inforamtion on how You built them? Thanks a lot for creating and posting the video!!

  • thats really awesome. only like a month ago i put two together, the oscilloscope and the tv as the same thing practically. of course without color and a few more electronics to modulate the signals. sometimes it seems this stuff is to hard to make but then again u see things like this and its really not that far aaway to figure out anymore . veryy cool again thanks

  • WOW!

  • awesome but cant stand the music

  • how bout worlds smalest TV now?

  • beautiful Mr Steiner, I gotta fuild your VCF!

  • haha awsome mate!

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