MO Valve "Osram" type L-210 triode
name: label: maker
content: Osram
notes: label: Description (Brief)
content: Four-pin plastic base (long pins), with tipless S-shaped envelope, getter stain near top. Donor’s card reads: “Triode made by M.O. Valve Company, Ltd., Osram Works, Brook Green, London W6 England. Battery operated triode for use as a Class A amplifier. Filament: 2 volts at .1 ampere. 150 volts at 2.5 mA in the plate circuit; 7.5 volt negative grid bias. Mounted in a standard UX type base.” Molded on base: "MOV / Co. Ltd."; stamped on envelope: "Osram / BVA".
label: Description (Brief)
content: Note: the maker is not the Germany Osram company. The Osram name was a brand name used by the MO Valve Co, Ltd. of the UK.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324446
label: catalog number
content: 324446
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 3 7/8 in x 1 5/8 in; 9.8425 cm x 4.1275 cm