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Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
The CRT prduces some weak x-rays but like robert said there are ~3 in of leaded glass protecting you. shure you could use a CRT as a x-ray tube but there are better options. A vacuum tube diode overvolted in reverse or a x-ray tube.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
Someone suggested using a microwave magnetron in reverse with the magnets removed. However I am not sure if there would be dangerous levels of microwave radiation so this is probably a bad idea/./
Registered Member #514
Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295
I doubt a magnetron would produce any microwaves if you removed the magnets. Without the external magnetic field to deflect the electron flow it will probably act just like a regular diode.
I'm also quite sure it wouldnt be good for producing x-rays either. It would probably flash over internally at the voltages reguired for x-ray emissions.
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
You can't find an old TV set?
I had 6 Lighthouse diodes a long while back before I gave up the majority of my tube collection. They're really not that hard to come across. You just need a flyback, its driver, and a 1B3 or similar rectifier and you will have some x-rays. Antique Electronic Supply even has them.
Registered Member #113
Joined: Fri Feb 10 2006, 01:40AM
Location:
Posts: 49
I used a 6BK4 to produce copious amounts of X-Rays using a 30KV X-Ray transformer rectified with many 1N4007 diodes. It worked a lot better than I could have hoped for. A CRT will (hopefully) get you nothing because the voltages used in normal TVs are sufficient for producing softish X-Rays which will irradiate you as you stare at it
Registered Member #561
Joined: Sat Mar 03 2007, 02:46AM
Location: Adelaide Australia
Posts: 230
Hazmatt_(The Underdog) wrote ...
You can't find an old TV set?
I had 6 Lighthouse diodes a long while back before I gave up the majority of my tube collection. They're really not that hard to come across. You just need a flyback, its driver, and a 1B3 or similar rectifier and you will have some x-rays. Antique Electronic Supply even has them.
i have NEVER found a valve tv and the tv tube i have got is from a mini tv. the flyback makes tiny arcs that are about 5mm long and can draw to 12mm. i have also got a tincy wincy tv tube the glass would only be 1-2mm thick on the face of the tube
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using a CRT as an X-ray tube?
