- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Thank you, Carl! That was quite informative and enjoyable. Based on similarities between my high pressure neon tube and the second tube in the video I...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Other than baking out the bombarder transformer does one other thing, it heats up and activates the getter materials in the electrodes. The getter mat...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Zrg, you have quite a capable high vacuum system. Your workbench looks a lot like mine when I am really having fun.
I agree that there seems to ...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Hi Matt,
Thanks for your compliments. As of today, I have a neon tank (250 liters!), so I can probably investigate the neon @ 250 torr observat...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Helium is not that expensive compared to any of the other gasses used in the tubes, except for argon and nitrogen of course. Xenon is hundreds of time...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
I'll have to see if I can get in touch with some old laser hobby buddies over at LPF. Several of them have usb spectrometers. They wouldn't be willing...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Re. helium diffusion through glass(es).
1. AFAIK that's the basis of portable "standard leaks" used to calibrate helium-sniffing leak detectors. ...
- Posted by Carl A. Willis on Tuesday 12 February 2013 - 07:22:49
Here's a video featuring some neon mixtures. http://youtu.be/A9ECEGs_r2U
I'm particularly fond of the effects created by adding a trace of solid ...
- Posted by currentkills91 on Wednesday 30 January 2013 - 06:33:11
The video pretty much explains it..
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- Posted by currentkills91 on Wednesday 30 January 2013 - 06:33:11
Maybe it's a push pull setup with the top coil 180 degrees out of phase with the bottom one. Or the top coil could be going through the high pass cap ...