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Equipment of Historical Importance
The AVS History Committee maintains a registry of equipment of historical importance. If you think you have such an item, please take a moment to supply some information to Dr. Bruce Kendall, 104 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, (814) 865-3604 (fax), (814) 238-3424 (home phone). Include your name, address, phone/fax. Bruce has also recently acquired an email address; you may contact him at bxk2@psu.edu. Please include the following:
Some specific equipment that Bruce is looking for includes:
Bruce is also looking for instruction manuals and technical data sheets that can help in the restoration of the following equipment:
Here’s a picture of Deb Puerini’s apparatus for the vacuum deairing of the gel goop that is used for making gel candles. Little did I realize that this cottage industry was in a state of crisis due to unsightly air bubbles.
A small bell jar serves as the vessel in which the molten gel is deaired. Pressure is controlled with a pinch clamp on the vent and pressure measurement is with a simple dial gauge. A small two-stage rotary vane pump provides the vacuum.
The apparatus has been nicknamed the Boyle’s Bubble Buster or BBB.
For complete details go to the article. (Acrobat required)
Neither the Bell Jar nor its editor assumes any responsibility for any of the items listed in this section. Please contact the advertisers directly.
While this page is for non-commercial interests, commercial enterprises with single or unusual items for sale are free to submit a request to have such items listed. Please send requests to shansen@tiac.net
Unless specifically requested otherwise, entries will be removed after about one month.
Richard Hull of the Tesla Coil Builders of Richmond has a side interest in collecting materials, mainly elements, in various shapes and sizes. He is willing to make these available, in small quantities, please, to the amateur vacuumist for vacuum deposition work, etc. at very reasonable costs, much lower than the commercial suppliers. Contact Richard by snail mail or phone at 7103 Hermitage Road Richmond, Va 23228 (804) 262-9499. His stock varies and no detailed list is available. A partial list follows:
Wire, various diameters:
Cobalt, tin, tungsten, niobium, hafnium, zirconium, titanium, platinum, palladium (pure 999 or better)
Rod and sheet stock various sizes:
Cobalt, tungsten, niobium, hafnium, zirconium, molybdenum, others
Bulk, powders, lump ingot, block, etc.
Indium, silver, germanium, aluminum .99999 fine, rare earths: Misch metal, gadolinium, cerium others. Thorium and uranium.
The rules: Hazardous and radioactive elements are picked up here only. No mail.
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