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low-noise triode
low-noise triode
© Collection of Historical Scientific Instruments, Harvard University

low-noise triode

Date1926
Inventory NumberVT0047
ClassificationVacuum Tube
Maker Western Electric Company 1869 - 1995
Cultural Region
    Place of Origin
      Dimensions9.9 × 3 × 3 cm (3 7/8 × 1 3/16 × 1 3/16 in.)
      DescriptionSmall low-noise triode amplifier, indentical to 264A except base pins were silver-plated to minimize contact noise and potential. One of the quitest tubes at the time (42dB below 1V). Replaced by 264C WE History pg 29,LOW NOISE SIMILAR TO RCA 864
      Curatorial Remarks3/14/00: The date of manufacture cannot be found in 75 YEARS OF WESTERN ELECTRIC TUBE MANUFACTURING. R. Forsberg guessed its date.
      FunctionAmplifier
      Historical AttributesManufactured until 1937
      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
      Green wooden storage box containing vacuum tube sockets
      Green wooden storage box containing vacuum tube sockets
      Date: 1910-1930
      Object number: RS0195
      measurement of sounds from the cicada
      measurement of sounds from the cicada
      George Washington Pierce
      Date: 1937
      Object number: 1998-1-0951g
      noise meter
      noise meter
      Radio Corporation of America
      Date: 1940-1945
      Object number: WJ0554
      GR type 1932A distortion and noise meter
      GR type 1932A distortion and noise meter
      General Radio Company
      Date: 1948
      Object number: WJ0302
      noise shunt
      noise shunt
      Western Electric Company
      Date: early 20th Century
      Object number: RS0120
      White noise generator
      White noise generator
      Object number: WJ0323
      White noise generator
      White noise generator
      Object number: WJ0271
      measurement of sounds from a stridulating grasshopper {CHLOEALTIS CONSPERSA}
      measurement of sounds from a stridulating grasshopper {CHLOEALTIS CONSPERSA}
      George Washington Pierce
      Date: 1936-1937
      Object number: 1998-1-0951a
      WE 231D triode tube
      WE 231D triode tube
      Western Electric Company
      Date: after 1926
      Object number: VT0730