It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
Building a CRT and bathing yourself in x-rays Building a CRT and bathing yourself in x-rays
FAQ Members List Calendar Search Today's Posts Mark Forums Read


Building a CRT and bathing yourself in x-rays
Reply
 
Thread Tools
Old 13th July 2012, 09:33   #1
[M] Reviewer
 
Stefan Mileschin's Avatar
 
Join Date: May 2010
Location: Romania
Posts: 111,798
Stefan Mileschin Freshly Registered
Default Building a CRT and bathing yourself in x-rays

For the Milan design week held last April, [Patrick Stevenson Keating] made a cathode ray tube and exhibited it in a department store.

The glass envelope of [Keating]‘s tube is a very thick hand-blown piece of glass. After coating the inside of the tube with a phosphorescent lining, [Keating] installed an electrode in a rubber plug and evacuated all the air out of the tube. When 45,000 Volts is applied to the electrode, a brilliant purple glow fills the tube and illuminates the phosphor.

Since the days of our grandfathers, CRTs have usually been made out of thick leaded glass. The reasoning behind this – and why your old computer monitor weighed a ton – is that electron guns can give off a substantial amount of x-rays. This usually isn’t much of a problem for simple devices such as a Crookes tube and monochrome CRTs. Even though [Keating] doesn’t give us any indication of what is being emitted from his tube, we’re fairly confident it’s safe for short-term exposure.

Despite being a one-pixel CRT, we can imagine using the same process to make a few very interesting pieces of hardware. The Magic Eye tube found in a few exceptionally high-end radios and televisions of the 40s, 50s, and 60s could be replicated using the same processes. Alternatively, this CRT could be used as a Williams tube and serve as a few bits of RAM in a homebrew computer.

http://hackaday.com/2012/07/12/build...8Hack+a+Day%29
Stefan Mileschin is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
T-rays produce 3Gbps short-range wireless, make WiFi pout in the corner Stefan Mileschin WebNews 0 17th May 2012 07:49
Building a NAS piotke General Madness - System Building Advice 25 30th December 2009 12:33
Building a MediaServer for $300 jmke WebNews 1 23rd February 2009 18:57
Building a PC into a VW Polo jmke WebNews 0 11th January 2007 12:40
Building a Light Box Sidney WebNews 0 18th November 2005 08:19
Building yourself a Macintrash jmke WebNews 1 8th August 2005 18:33
Building [M]Folder5 jmke Site & Forum Feedback - Folding@Home 24 29th December 2002 04:05

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


All times are GMT +1. The time now is 04:18.


Powered by vBulletin® - Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO