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VTNBK 4/553
XM triode
VTNBK 4/553

XM triode

Date1926
Inventory NumberVT0866
ClassificationVacuum Tube
Maker Western Electric Company 1869 - 1995
Cultural Region
    Place of Origin
      Dimensions19.1 × 5.7 × 5.7 cm (7 1/2 × 2 1/4 × 2 1/4 in.)
      DescriptionHAS INTERNAL CHOKES SIM TO RCA 8005
      FunctionTransmitting filamentary triode. Used as oscillator, amplifier, or modulator. Graded to facilitate matching in pairs. Chokes in plate and grid leads to suppress HF parasitic oscillations.
      VTNBK 3/397
      XM triode
      Western Electric Company
      Date: after 1926
      Object number: VT0814
      rectifier, type 6-A
      rectifier, type 6-A
      Western Electric Company
      Date: 1940s-1950s
      Object number: RS0916
      WE 710A UHF triode
      WE 710A UHF triode
      Western Electric Company
      Date: 1942
      Object number: VT1050
      WE 259B tetrode tube
      WE 259B tetrode tube
      Western Electric Company
      Date: 1931
      Object number: VT0406
      VTNBK 4/562
      WE 705A half-wave rectifier tube
      Western Electric Company
      Date: 1942
      Object number: VT1243
      WE 258B half-wave mercury-vapor rectifier tube
      WE 258B half-wave mercury-vapor rectifier tube
      Western Electric Company
      Date: 1934
      Object number: VT1507
      VTNBK 2/208
      WE 249C half-wave mercury-vapor rectifier tube
      Western Electric Company
      Date: 1934
      Object number: VT1506
      XM triode
      XM triode
      Western Electric Company
      Date: 1937
      Object number: VT0861
      VTNBK 3/381
      XM triode
      Western Electric Company
      Date: 1923
      Object number: VT0871
      RCA ET-3619 AM / CW radio transmitter
      RCA ET-3619 AM / CW radio transmitter
      Radio Corporation of America
      Date: circa 1921
      Object number: RS0723
      WE 304A transmitting triode tube
      WE 304A transmitting triode tube
      Western Electric Company
      Date: after 1934
      Object number: VT0611
      Green wooden storage box containing choke coils and tranformers
      Green wooden storage box containing choke coils and tranformers
      Date: 1910-1940
      Accessories: Diagram
      Object number: RS0515