Fusor Forums

Jim and Jon,

Understood, thanks.
Roberto

Jon, Jim, Richard
Thanks for your comments.
Being unable to assembly a PVD, what about heating a titanium wire in a high vacuum, as in sublimation pumps?
Some will condense in an adecuately positioned piece.
Am I wrong?

Jon
A superb setup, as always.

But help me to understand. Wasn´t enough to use a titanium sheet?

Roberto

I have the following questions about the Pfeiffer TPH-050 turbomolecular pump:
-where to get the lubricating oil, or a replacement one.
-the resistances of the motor windings.
-the motor windings pin-out.
Thanks in advance.
Roberto

I wish to call your attention to a nice bibliography on experimental techniques, not all but many ones useful for fusor experimenters:

Experimental Innovations in Surface Science, by John T. Yates Jr.

The title is slightly misleading but the content is invaluable.

Scott
Understood!
thanks
Roberto

Richard
I am a bit confused about the image of your HV feedthrough.
The CF flange (a Varian one) seems to lack the sharp edge to seal against the copper washer.
Please comment.
Roberto

Hi Richard, a useful technique to removing tungsten deposits is melting a bit of sodium nitrite over the surface to be cleaned. It melts at low temperature and reacts with the tungsten. Then you wash thoroughly the window with distilled water.

Hi Patrick
Thanks for sharing.
Not useful for my project but a friend of mine, in struggle with an electrostatic accelerator will enjoy your info.

Paul
Donation appears gone to Tanglewook Ventures.
Is it OK?