Talk:Crackle tube

=Images?=

Any images of what one of these looks like? Dave (talk) 05:27, 3 August 2009 (UTC)


 * I've added two pictures that I took of my flat Luminglas tube. That should help. :) Cheater (talk) 11:02, 9 November 2009 (UTC)


 * Perfect, thanks. Dave (talk) 19:06, 28 November 2009 (UTC)

Tube pressure
signweb.com states 20-100 torr, well below atmospheric. 98.208.245.237 (talk) 05:48, 3 December 2013 (UTC)

External links modified
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