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Image Not Available for FIL TEST
FIL TEST
Image Not Available for FIL TEST

FIL TEST

Inventory NumberVT2072
ClassificationVacuum Tube
Maker Cruft Laboratory, Harvard University ? founded 1914
DescriptionDUAL A-151
Image Not Available for FIL TEST
FIL TEST
Cruft Laboratory, Harvard University
Object number: VT2069
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: VT2068
Image Not Available for FIL TEST
FIL TEST
Cruft Laboratory, Harvard University
Object number: VT2066
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