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Posted on 11.21.06 by John @ 12:34 pm
This guy makes cathode ray tubes from scratch! This has officially buried the needle on my clever meter. Using phosphor from common florescent tubes he coats the inside of a glass tube and evacuates the air. When an electron beam exits a small hole in the discharge tube that is mounted inside the phosphor glows. He has even added deflection coils (magnets) to create an oscilloscope! You can see some videos here, here, and here. His other projects include a photo cell made from salt water and copper , a rectifier made from borax, and even a Homemade Tunnel Diode and RF Oscillator. He also has built his own vacuum tubes. Talk about hardcore! Filed under: Cool and DIY and Mad Science and Mods and Science Comments:
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March 2nd, 2008 at 12:04 am
Hello Mr. CRT maker , I hope that you can help me. My name is Angelo Flores and I am an inventor. I am currently working on a prototype and I need the advice and perhaps the help of someone like you. For my device to work I need to make some simple CR tubes. something like The one made by Philip Lenard ( nobel laureate)about a hundred years ago but instead of a small aluminum window at the end where the electrons left the bottle I will need the entire end of the bottle made of aluminum for Maximum Emission of Electrons. I am willing to pay to have one made but i will need all pertinent data like how much of a vaccum it took and the voltage and amperage required to operate it. Please get in touch with me. My e-mail is Aliensoul1@att.net OR call me collect at 1-210-509-4852 PS is it possible to make one from a wine bottle?? That would solve all my problems in this matter
March 9th, 2008 at 6:52 pm
Angelo: I wish I could help you out, your ideas sound very cool. You should get a hold of the maker of the tubes from his web site