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- Marconi-Osram_Valve abstract "M-OV (Marconi-Osram Valve Company) was a British manufacturer of thermionic valves (vacuum tubes). It was a subsidiary of the (British) General Electric Company Ltd.The company was founded in 1919, when the valve making interests of GEC (Osram) and the Marconi Company were combined. In 1929, Marconi sold its interest in the company to the Gramophone Company, a predecessor of EMI.In 1939, M-OV acquired two disused cotton mills at Shaw, Oldham where it established a shadow factory to produce valves and cathode ray tubes. The two mills named Cape and Duke, were bought from the Lancashire Cotton Corporation for the princely sum of £7,000. Cape mill was used as the main production facility at Shaw, with the adjacent Duke mill remaining mostly unused.Shaw produced a vast array of valves for the war effort, some of which are listed below. VT104 and VT105 for the T1154 transmitter. VR99, VR100, VR101 and VR103 for the R1155 receiver. TT11 for the TR1143 fighter set. VT90 micropup used in airborne radar.EMI sold its share of M-OV to GEC in 1956. The company continued to manufacture valves at the Brook Green Works, Hammersmith, London, until 1988. M-OV branded new old stock valves, continue to be highly prized by enthusiasts of the valve sound.Notable products of the company included cathode ray tubes for television, starting in the 1930s. The company also introduced the KT66 \"kinkless tetrode\" (beam power tetrode). In 1922 the company brought out valves using thoriated tungsten filaments, which needed less battery power to operate than former types. During World War II the company developed the CV122 valve used in the proximity fuse.".
- Marconi-Osram_Valve wikiPageExternalLink Marconi-Osram_Valve_Co.
- Marconi-Osram_Valve wikiPageID "34920842".
- Marconi-Osram_Valve wikiPageLength "2462".
- Marconi-Osram_Valve wikiPageOutDegree "21".
- Marconi-Osram_Valve wikiPageRevisionID "706240741".
- Marconi-Osram_Valve wikiPageWikiLink British_shadow_factories.
- Marconi-Osram_Valve wikiPageWikiLink Category:1919_establishments_in_England.
- Marconi-Osram_Valve wikiPageWikiLink Category:Defunct_technology_companies_of_the_United_Kingdom.
- Marconi-Osram_Valve wikiPageWikiLink Category:Electronics_companies_established_in_1919.
- Marconi-Osram_Valve wikiPageWikiLink Category:Electronics_companies_of_the_United_Kingdom.
- Marconi-Osram_Valve wikiPageWikiLink Category:Electronics_industry_in_London.
- Marconi-Osram_Valve wikiPageWikiLink Category:General_Electric_Company_plc.
- Marconi-Osram_Valve wikiPageWikiLink Cathode_ray_tube.
- Marconi-Osram_Valve wikiPageWikiLink EMI.
- Marconi-Osram_Valve wikiPageWikiLink General_Electric_Company_plc.
- Marconi-Osram_Valve wikiPageWikiLink Gramophone_Company.
- Marconi-Osram_Valve wikiPageWikiLink KT66.
- Marconi-Osram_Valve wikiPageWikiLink Lancashire_Cotton_Corporation.
- Marconi-Osram_Valve wikiPageWikiLink Marconi_Company.
- Marconi-Osram_Valve wikiPageWikiLink New_old_stock.
- Marconi-Osram_Valve wikiPageWikiLink Proximity_fuze.
- Marconi-Osram_Valve wikiPageWikiLink R1155.
- Marconi-Osram_Valve wikiPageWikiLink Shaw_and_Crompton.
- Marconi-Osram_Valve wikiPageWikiLink Tube_sound.
- Marconi-Osram_Valve wikiPageWikiLink Vacuum_tube.
- Marconi-Osram_Valve wikiPageWikiLinkText "M-OV Company".
- Marconi-Osram_Valve wikiPageWikiLinkText "M-OV".
- Marconi-Osram_Valve wikiPageWikiLinkText "M. O. Valve Company".
- Marconi-Osram_Valve wikiPageWikiLinkText "MOV".
- Marconi-Osram_Valve wikiPageWikiLinkText "Marconi-Osram Valve (MOV)".
- Marconi-Osram_Valve wikiPageWikiLinkText "Marconi-Osram Valve Company".
- Marconi-Osram_Valve wikiPageWikiLinkText "Marconi-Osram Valve".
- Marconi-Osram_Valve wikiPageWikiLinkText "Marconi-Osram".
- Marconi-Osram_Valve wikiPageUsesTemplate Template:Electronics-stub.
- Marconi-Osram_Valve wikiPageUsesTemplate Template:General_Electric_Company_plc.
- Marconi-Osram_Valve wikiPageUsesTemplate Template:Refimprove.
- Marconi-Osram_Valve wikiPageUsesTemplate Template:UK-company-stub.
- Marconi-Osram_Valve subject Category:1919_establishments_in_England.
- Marconi-Osram_Valve subject Category:Defunct_technology_companies_of_the_United_Kingdom.
- Marconi-Osram_Valve subject Category:Electronics_companies_established_in_1919.
- Marconi-Osram_Valve subject Category:Electronics_companies_of_the_United_Kingdom.
- Marconi-Osram_Valve subject Category:Electronics_industry_in_London.
- Marconi-Osram_Valve subject Category:General_Electric_Company_plc.
- Marconi-Osram_Valve hypernym Manufacturer.
- Marconi-Osram_Valve type Company.
- Marconi-Osram_Valve type Company.
- Marconi-Osram_Valve type Industry.
- Marconi-Osram_Valve comment "M-OV (Marconi-Osram Valve Company) was a British manufacturer of thermionic valves (vacuum tubes). It was a subsidiary of the (British) General Electric Company Ltd.The company was founded in 1919, when the valve making interests of GEC (Osram) and the Marconi Company were combined.".
- Marconi-Osram_Valve label "Marconi-Osram Valve".
- Marconi-Osram_Valve sameAs Q6757777.
- Marconi-Osram_Valve sameAs m.0j44c4x.
- Marconi-Osram_Valve sameAs Q6757777.
- Marconi-Osram_Valve wasDerivedFrom Marconi-Osram_Valve?oldid=706240741.
- Marconi-Osram_Valve isPrimaryTopicOf Marconi-Osram_Valve.