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Homemade Cathode Ray Tube 1

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Uploaded by on Sep 14, 2006

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

Homemade Cathode Ray Tube with cold cathode displaying 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)

  • Good work. Did you use zinc sulfide for the phosphor coating?

  • Just used phosphor powder, from a broken fluorescent light, mixed with water and applied to the glass surface.

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  • Could a CRT be made that is as flat as a Jar lid, and still produce an image via magnetic deflection?

  • i need to know how to make the gun

  • idea for you: make 2 coils and conect them to the coil of a tv/crt

  • @Diamondblade2006 yes!!!!! it would burn the phoshorus !!!!!! :)

  • I have an idea for a small device with a cathode ray tube acting as the primary screen. My question is, "How flat can you make a Cathode Ray Tube, and would a deflection coil still be able to manipulate the electron beam inside?"

  • @cheery314 as in the lights yes

  • @nylesteiner

    Umm... Don't those have mercury in them?

  • @nylesteiner Bad for the environment but great for science. Thanks for the display.

  • What you did with the coil reminds me of the beginning of David Bowie's Space Oddity video. You sir are a genius.

  • i believe that most X-rays produced in tubes would come from electrons hitting the metal mask right behind the phosphorescent material.

    obviously, since this has no shadow mask (like most black and white CRTs), it would produce much less ionizing radiation.

    i think.

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