Cunningham C300? triode
Date1920
Inventory NumberVT0912
ClassificationVacuum Tube
Maker
E. T. Cunningham, Inc.
1922 - 1931
Cultural Region
Place of Origin
Dimensions10.8 × 4.5 × 4.5 cm (4 1/4 × 1 3/4 × 1 3/4 in.)
DescriptionARGON-FILLED DETECTOR
FunctionDetector
E. T. Cunningham, Inc.
Date: 1927-1930
Object number: VT1607
