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VTNBK 5/654
shop-built FIL TEST
VTNBK 5/654

shop-built FIL TEST

Date1929
Inventory NumberVT0228
ClassificationVacuum Tube
Maker Cruft Laboratory, Harvard University founded 1914
Cultural Region
    Place of Origin
      Dimensions12.7 × 4.5 × 4.5 cm (5 × 1 3/4 × 1 3/4 in.)
      DescriptionTAGS: A-0-1 .325a B-9-1 .262a
      FunctionExperimental
      VTNBK 5/654
      shop-built FIL TEST
      Cruft Laboratory, Harvard University
      Date: 1929
      Object number: VT0227
      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 4/550
      shop-built FIL TEST diode
      Cruft Laboratory, Harvard University
      Object number: VT0220
      VTNBK 4/624
      shop-built FIL TEST diode
      Cruft Laboratory, Harvard University
      Date: 1938
      Object number: VT0223
      VTNBK 5/686
      shop-built experimental tube
      Cruft Laboratory, Harvard University
      Date: 1912
      Object number: VT0826
      VTNBK 4/520
      shop-built experimental tube?
      Cruft Laboratory, Harvard University
      Object number: VT1075
      Image Not Available for FIL TEST
      FIL TEST
      Cruft Laboratory, Harvard University
      Object number: VT2067
      Image Not Available for FIL TEST
      FIL TEST
      Cruft Laboratory, Harvard University
      Object number: VT2065
      Image Not Available for FIL TEST
      FIL TEST
      Cruft Laboratory, Harvard University
      Object number: VT2066
      Image Not Available for shop-built diode
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1925
      Object number: VT0201
      VTNBK 5/642
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1925
      Object number: VT0202