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Gee... I sure hope I spelled that right! Anyway, Welcome to this new Yahoo Group for the casual experimenter in Vacuum or High Vacuum (from now on Vac or HiVac). Searching the web I've found a few

Hi Guys... I've posted some photo's to the group in a folder named "Ken's junque shop". There's one of me and a SILO top that I have been lugging around for a while, a few of some vacuum valves,

Hi Guys, I'm heading out the door for a 4 day fishin trip, but just wanted to say Hi! BTW, Ken I love your "Junque Shop" :) Threw a couple images into the photo's section. I have many more images on

In James Lerch's system he uses an adjustable valve to "tune" the amount of cooling derived from an air conditioning compressor to cool his cold trap... I have a similar cold trap (3 actually) that I

I've added James Lerch's web site link to the Group Links. If you have a web site that you'd like to add... please do! Ken Hunter

Hi... It's been a while since anyone (me) posted. We now have 12 members, but not much participation. Should I keep the Group open or let it die? I've returned from Eastern PA with a vacuum coating

Ken ; hello , just joined your group , I confess I dont know much about vacuum coating mirrors, thats part of the reason I joined.I do however calibrate vacuum gages at work for a liveing.So if I can

Hi Andy... Welcome to the Group. I'm sure that your expertise can be of help to some of us as we muddle through. Where are you located? I'm thinking Australia for some reason. (Am I close?) Tell us

Ken ; hello I work in a foundry, Im the lead calibrator technician, we have 5 small units we use to pull up to 30 lbs of vacuum to test for gas in the aluminum.Calibrateing them is pretty straight

Hi Ken, Interesting question, unfortunately the answer has a whole bunch of variables! So here's my stab at an answer. The Cap Tube size/length needed depends on the following variables Pump Volume

Thanks Andy for the Bio and info on your job... Hmmm, working in a foundry sounds interesting. Bet that you'd be able to make your own forks for a fork mount there??? Yeah, I hear you about finding a

Greetings All, To stimulate a little conversation, I thought I'd recount a few of my more "Exciting" moments during a few recent coating runs :) Good Times #1 Things were going well, but perhaps it

Hi James, Thanks for the informative post on the Capillary tube usage. I don't know much about those things but I'd have to guess that the capillary tubes I have are about 6-8 feet long (in a 3 inch

On Sun, 2003-01-26 at 08:32, Ken Hunter wrote: > Hi James, > > Thanks for the informative post on the Capillary tube usage. > > I don't know much about those things but I'd have to guess that the >

Hi Darald, James is the ONE to ask about silvering... He has done quite a few mirrors that way and I believe he's made a few attempts at coating them to prevent tarnishing. I'd bet that he can give

Greetings All, Thanks to Peter Baird, I've added the option in my simulation code to support multiple evaporating rings. An interesting result from this experiment shows that it should be feasible to

James, In my photo folder I have added something you might want to consider. It is a common item found at most any Hardware store and it's called a "wellnut". They come in various sizes and I imagine

James, I've added a photo to my folder that might be what you are asking for. It's a common item found at hardware stores and is called a "wellnut". I imagine it would work like the hole plug at the

Changed the Group photo so you wouldn't have to chase down the photo of the Feed-Thru idea I have... If you have any photo's that you would like to submit to the Group, please do. I'll rotate all

Ken, Wish I had heard of those feed-thrus a few month's ago :) Would have saved a ton of work! Take Care, James Lerch http://lerch.no-ip.com/atm (My telescope construction,testing, and coating site)