Nom: | Emerson Radval Co.; New York City (USA) |
Abréviation: | eme |
Produits: | Fabricant de tube |
Résumé: |
Emerson Radval Corporation, 25 West 43rd Street, New York City, NY - which should not be confused with the Emerson Radio & Phonograph Company - designed and marketed the "Emerson Multivalve", also called just "Multivalve" or "Three-in-one". The actual manufacturer was Cleartron Vacuum Tube Co., 28 West 44th Street - near the back door of Emerson Radval ... |
Histoire: |
In an ad in Radio News from March 1927 theEmerson Radval Corporation quoted from the "New York Herald Tribune" of December 19th 1926: "The new MULTI VALVE may well revolutionize the manufacture and use of Radio Apparatus." They also described the special tube at other places as "a seven-element tube with 201A filament, three plates and three grids."
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