On 3 Dec 2005 18:53:05 -0800, "bschwand"
wrote:

Hi everybody,

I want to build a device similar in some ways to a vacuum chamber.

I built a vacuum chamber for aluminizing telescope mirrors. Mild
steel chamber, plate glass electrical pass thrus, held in place with
two part epoxy. 2x10e-5 torr consistently, with a few trips to
9x10e-6 torr.

Oh, and spark plugs work just fine at this range, but, all in all,
make terrible electrical pass thrus.

http://lerch.no-ip.com/atm (item 18)

The new and improved chamber:
http://lerch.no-ip.com/atm/Projects/...First_Coating/


Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction, Testing, and Coating site)
http://lerch.no-ip.com/ChangFa_Gen (My 15Kw generator project)
Press on: nothing in the world can take the place of perseverance.
Talent will not; nothing is more common than unsuccessful men with talent.
Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent.
Calvin Coolidge