9A8 miniature triode pentode
Inventory NumberVT5129
ClassificationVacuum Tube
Subject
Maker
Westinghouse Electric & Manufacturing Company
1886 - 1945
Cultural Region
Place of Origin
Dimensions5.4 × 2.1 cm (2 1/8 × 13/16 in.)
Westinghouse Electric & Manufacturing Company
Date: 1922-1924
Object number: VT0066
Westinghouse Electric & Manufacturing Company
Date: 1922
Object number: VT0342
Westinghouse Electric & Manufacturing Company
Date: 1922
Object number: VT0343
Westinghouse Electric & Manufacturing Company
Date: after 1922
Object number: VT1150
