Measuring Vaccum with electrical discharge

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John Futter
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Measuring Vaccum with electrical discharge

Post by John Futter »

Measuring high vacuum with an electrical discharge
From a very old book written in 1945
enjoy
20190510091503083.pdf
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Rex Allers
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Re: Measuring Vaccum with electrical discharge

Post by Rex Allers »

Nice reference, John. The old original ones are often the best.

Do you have the title and author of the whole document?
Rex Allers
Cai Arcos
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Re: Measuring Vaccum with electrical discharge

Post by Cai Arcos »

Rex Allers wrote: Fri May 10, 2019 2:41 am Nice reference, John. The old original ones are often the best.

Do you have the title and author of the whole document?
Rex:
"Manual of Vacuum Practice", by L.H Martin.
I found it in Amazon. If everything goes well, I will order one soon:
https://www.amazon.com/Manual-Vacuum-Pr ... B001FT0NUC
EDIT:
John:
I see in the text that there is a reference to Appendix 12, which should cointain tabulated tables for tube characteristics. ¿Could you please post it?
I would be extremely grateful.
John Futter
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Re: Measuring Vaccum with electrical discharge

Post by John Futter »

Cai
Its the weekend here now and I left the book at work where the wonderful photocopier that copies to PDF is
i'll try to do it on Monday for you
Cai Arcos
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Re: Measuring Vaccum with electrical discharge

Post by Cai Arcos »

John Futter wrote: Fri May 10, 2019 5:40 am Cai
Its the weekend here now and I left the book at work where the wonderful photocopier that copies to PDF is
i'll try to do it on Monday for you
Obviously, there is no rush whatsoever.
Thank you very much! I have been searching info on this type of vacuum gauge for about a month with very little success until now.
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Richard Hull
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Re: Measuring Vaccum with electrical discharge

Post by Richard Hull »

Cai, please avoid quoting. It is just not done here. We are intelligent people and can remember posts within a single thread. We don't need to re-read over and over again.

If you find any quoting in the vast collection of thousands of posts here, you will find that at some point, we have asked the new person to avoid quoting.

Richard
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
Cai Arcos
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Re: Measuring Vaccum with electrical discharge

Post by Cai Arcos »

Richard:
You are correct. I did it by impulse from other forums, sorry. I will not make the same mistake again.
John Futter
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Re: Measuring Vaccum with electrical discharge

Post by John Futter »

appendix 12 plus more!!


appendix12.pdf
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Cai Arcos
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Re: Measuring Vaccum with electrical discharge

Post by Cai Arcos »

Books are not made like this anymore....
I bet a new book would provide a reference to some obscure paper containing this data without actually posting it and assuming the reader can access it...
Thanks for posting it!
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