Skip to main content
Advanced Search
XM triode
XM triode
© Collection of Historical Scientific Instruments, Harvard University

XM triode

Date1937
Inventory NumberVT0861
ClassificationVacuum Tube
Maker Western Electric Company 1869 - 1995
Cultural Region
    Place of Origin
      Dimensions32.2 × 8.9 × 8.9 cm (12 11/16 × 3 1/2 × 3 1/2 in.)
      DescriptionLabel: "SHOP TUBE" SIMILAR TO RCA 849
      FunctionAir-cooled Transmitter Amplifier with thoriated tungsten filament
      VTNBK 3/397
      XM triode
      Western Electric Company
      Date: after 1926
      Object number: VT0814
      VTNBK 3/381
      XM triode
      Western Electric Company
      Date: 1923
      Object number: VT0871
      VTNBK 4/553
      XM triode
      Western Electric Company
      Date: 1926
      Object number: VT0866
      Image Not Available for triode
      triode
      Western Electric Company
      Date: 1938
      Object number: VT1495
      Image Not Available for Low-noise TRIODE
      Low-noise TRIODE
      Western Electric Company
      Date: after 1933
      Object number: VT3970
      Image Not Available for Low-noise TRIODE
      Low-noise TRIODE
      Western Electric Company
      Date: after 1933
      Object number: VT3969
      Image Not Available for Low-noise TRIODE
      Low-noise TRIODE
      Western Electric Company
      Date: after 1933
      Object number: VT3968
      low-noise triode
      low-noise triode
      Western Electric Company
      Date: 1926
      Object number: VT0047
      WE 284D transmitting triode tube
      WE 284D transmitting triode tube
      Western Electric Company
      Date: 1937
      Object number: VT0664
      WE 304A transmitting triode tube
      WE 304A transmitting triode tube
      Western Electric Company
      Date: after 1934
      Object number: VT0611
      WE 231D triode tube
      WE 231D triode tube
      Western Electric Company
      Date: after 1926
      Object number: VT0730
      WE 252A power triode tube
      WE 252A power triode tube
      Western Electric Company
      Date: after 1930
      Object number: VT0592