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VTNBK 4/510
shop-built bolometer
VTNBK 4/510

shop-built bolometer

Inventory NumberVT0252
ClassificationVacuum Tube
Maker Cruft Laboratory, Harvard University founded 1914
Cultural Region
    Place of Origin
      Dimensions11.8 × 3 × 3 cm (4 5/8 × 1 3/16 × 1 3/16 in.)
      DescriptionSEALED W/CORK
      FunctionExperimental
      VTNBK 2/194
      shop-built bolometer
      Cruft Laboratory, Harvard University
      Object number: VT1098
      VTNBK 4/624
      shop-built diode, multi-anode
      Cruft Laboratory, Harvard University
      Date: 1938
      Object number: VT0224
      VTNBK 4/624
      shop-built FIL TEST diode
      Cruft Laboratory, Harvard University
      Date: 1938
      Object number: VT0223
      VTNBK 4/625
      shop-built split-anode magnetron?
      Cruft Laboratory, Harvard University
      Date: 1939
      Object number: VT1049
      VTNBK 1/108
      shop-built diode
      Cruft Laboratory, Harvard University
      Object number: VT1550
      VTNBK 5/654
      shop-built FIL TEST
      Cruft Laboratory, Harvard University
      Date: 1929
      Object number: VT0227
      VTNBK 5/654
      shop-built FIL TEST
      Cruft Laboratory, Harvard University
      Date: 1929
      Object number: VT0228
      Image Not Available for shop-built FIL TEST?
      shop-built FIL TEST?
      Cruft Laboratory, Harvard University
      Date: 1936
      Object number: VT0225
      Image Not Available for shop-built FIL TEST
      shop-built FIL TEST
      Cruft Laboratory, Harvard University
      Object number: VT0219
      VTNBK 5/646
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1929
      Object number: VT0200
      VTNBK 6/832
      shop-built solenoid
      Cruft Laboratory, Harvard University
      Object number: VT0251
      shop-built triode
      shop-built triode
      Cruft Laboratory, Harvard University
      Object number: VT0204