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Description: | none MANU The General Electric Company Limited of England. circa 1920 Osram Works, hammersmith, london, England. DES after GEISSLER,Johann,Heinrich,Wilhelm. 1855 Bonn, Germany. DES after MOORE,Daniel,Macfarlane. 1920 New York, The United states of America. This is a 'beehive' or 'OSGLIM' low intensity neon discharge lamp used as a night light or in simple testing circuits, such as those used for insulation leakage testing. It is fitted with a standard Swan two pin bayonet end cap Type B25/26. The envelope is tubular and and is hand made with a pip. The insulation separating the lead in wires as they pass through the cane is pitch. The bulb would have been evacuated and then partially refilled with a small amount of neon through the pip or pintel at the top of the envelope. N.B. all gas discharge tubes emit X-rays this is because the electrons from the cathode strike the atoms of gas in the tube at high energy levels. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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