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VTNBK 1/108
shop-built diode
VTNBK 1/108

shop-built diode

Inventory NumberVT1550
ClassificationVacuum Tube
Maker Cruft Laboratory, Harvard University ? founded 1914
Cultural Region
    Place of Origin
      Dimensions10.5 × 4.6 × 4.6 cm (4 1/8 × 1 13/16 × 1 13/16 in.)
      DescriptionSTEM FILLED W/BEESWAX
      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 5/646
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1929
      Object number: VT0200
      Image Not Available for shop-built diode ??
      shop-built diode ??
      Cruft Laboratory, Harvard University
      Object number: VT0216
      VTNBK 6/831
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1922
      Object number: VT0199
      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
      VTNBK 4/550
      shop-built FIL TEST diode
      Cruft Laboratory, Harvard University
      Object number: VT0220
      VTNBK 6/794
      shop-built diode ??
      Cruft Laboratory, Harvard University
      Object number: VT0215
      VTNBK 4/630
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1936
      Object number: VT0626
      Image Not Available for shop-built diode
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1936
      Object number: VT0627
      VTNBK 5/664
      shop-built diode
      Cruft Laboratory, Harvard University
      Date: 1939
      Object number: VT0625