Re: aluminizing chamber electrodes queery
Greetings I have NO experience with vacuum coating - but I would think that your car cigarette lighter element would more likely be a nichrome type of wire. From the Kanthal website it is rated to
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Darald Bantel <dbantel@...>
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#196
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aluminizing chamber electrodes queery
This is my first post to this list. Let's see if it works. I have a vacuum chamber, which pulls needed vacuum for aluminizing, so I am now at stage of needing to get electrodes into the stainless
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Dominic-Luc Webb
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#195
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Re: ATM book 3 article on telescope mirror coating
--- Gomez <gomez@...> wrote: Amigo Gomez: I take your offert of the copy of the article on aluminsing telescope mirrors. I garantee you, it is for my personal use only. Plese mail me the pdf.
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teveotron
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#194
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Re: Evaporator
Well I have the 1397 running. Ran a few fluid changes through it to displace the nasty old oil and water. Haven't plumbed it all together but it sure appears to pull quite a bit of air. Also received
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arcstarter <arcstarter@...>
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#193
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Re: Evaporator
Good find! That 1397 will suck all the air out of a 10 inch diff pump in short order.. If you have a smaller diff pump it's overkill but you'll sure be able to recycle quickly! Ken Hunter 1397
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Ken Hunter <atm_ken_hunter@...>
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#192
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Evaporator
Guys, I recently purchased a used (and abused) evaporator, and am in the process of refurbing the same. If anyone cares I can probably post pictures and more information on the specific machine.
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arcstarter <arcstarter@...>
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#191
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Re: ATM book 3 article on telescope mirror coating
Not that I am a stickler for adhering to every single law (just some of them), but you seemed to want to know: Generally speaking, copyright law allows you to make a copy of a work which you have
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Gomez <gomez@...>
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#190
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Re: ATM book 3 article on telescope mirror coating
You might want to compare it to: 2. W. Kindred, J.T. Williams, and D. Clark, "In situ Aluminization of the MMT 6.5 m Primary Mirror," MMTO Technical Report #03-8, (June 2003); also
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Don Mattox
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#189
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ATM book 3 article on telescope mirror coating
Hi I have scanned a copy of the article on aluminising telescope mirrors from amateur telescope making book 3. It is a large 1.2 Mb file. If anyone would like me to email them the pdf I am willing to
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gjnelson@...
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#188
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ATM book 3 article on telescope mirror coating
Hi I have scanned a copy of the article on aluminising telescope mirrors from amateur telescope making book 3. It is a large 1.2 Mb file. If anyone would like me to email them the pdf I am willing to
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gjnelson@...
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#187
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ATM book 3 article on telescope mirror coating
Hi I have scanned a copy of the article on aluminising telescope mirrors from amateur telescope making book 3. It is a large 1.2 Mb file. If anyone would like me to email them the pdf I am willing to
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gjnelson@...
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#186
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Stolen Scope
STOLEN: A StarMaster 30" telescope w/ an Argo Navis DSC and a White 17' Haulmark "V" nose, tandem wheel trailer which has a ramp rear door and a 36" side door on the right. Items were taken from my
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Ken Hunter <atm_ken_hunter@...>
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#185
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Re: More questions about oil diffusion pumps
Mr. Peter John Smith: After looking your reprints of diffusion pumps, I can see all of them have ejector as the last stage. I wish to know where are the benefits of the ejector system and also the
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teveotron
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#184
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Re: More questions about oil diffusion pumps
It would be an option but the transport cost to SA makes any option on ebay out of my current budget. Otherwise I most likely would be in business now. I was just going to run without valves. Good
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gjnelson@...
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#183
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Re: More questions about oil diffusion pumps
Geoff, Check out E-bay for old diff. pumps there are a couple there now with traps, valves and one with a gauge controller and gauges. you can make a pump but it is probably cheaper to buy one, the
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RON WHITE
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#182
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Duniway's "Pentavac 5" DP oil
Has anyone used it? In their latest paper catalog, which arrived in the mail yesterday, Duniway claims that it has higher oxidization resistance, higher operating temperature limits, and lower vapor
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Gomez <gomez@...>
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#181
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Re: More questions about oil diffusion pumps
Take a look at http://209.210.231.220/Vacuum/Technique/Vacuum3.html for some ideas about how the pumps work. Don Mattox
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Don Mattox
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#180
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Re: More questions about oil diffusion pumps
I have put 4 more scans on my web pages with info about Diff Pumps. These are from the quite old book - 1947 to be precise. A Manual of Vacuum practice by Martin and Hill. This has been reprinted by
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Peter John
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#179
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More questions about oil diffusion pumps
Peter John Smith put a picture on his website of the internal construction of a vacuum pump. It has helped but I don't think I understand and the drawing is not clear enough. I also had a really good
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gjnelson@...
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#178
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Re: Digest Number 72
The web site for this publication (The Bell Jar) can be found here: http://www.belljar.net/ You can even buy printed back-issue collections.
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Gomez <gomez@...>
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#177
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