Skip to main content
Advanced Search
Image Not Available for FIL TEST
FIL TEST
Image Not Available for FIL TEST

FIL TEST

Inventory NumberVT2069
ClassificationVacuum Tube
Maker Cruft Laboratory, Harvard University founded 1914
Place of Origin
    DescriptionDUAL A-10-15
    Image Not Available for FIL TEST
    FIL TEST
    Cruft Laboratory, Harvard University
    Object number: VT2068
    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 FIL TEST
    FIL TEST
    Cruft Laboratory, Harvard University
    Object number: VT2072
    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
    VTNBK 4/552
    FIL TEST
    Cruft Laboratory, Harvard University
    Object number: VT0222
    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