7C5 Sylvania NOS 1942-1943 (42ma)
7F7 Sylvania rebranded RCA Victor parallel round gray plates used/good 1950 (2.1/2.4ma)
7F7=VT-189 Sylvania rebranded GE round black plates used/like new 1943 (2.7/3.1ma)
7F7=VT-189 Sylvania rebranded GE round black plates used/like new 1943 (3.9/4.5ma)
80 Hytron engraved base used/strong 1930's (60/40 and 62/40)
800=VT-64 RCA Lab Development tube charcoal black plate used/good 1940 era (42ma, Gm=2150)
8020 Amperex 1940's low hours/test like new (4 in stock)
8020 Sperti by RCA 1940's low hours/test like new (1 in stock)
8020 US Brands NOS (6 in stock)
8025 RCA NOS original box
8025 RCA used/like new 1940's
81 ST-16 Sylvania NOS 1940's top mica tilted, 1 small glass chip inside tube (56/40)
81 ST-19 Harvey Burnam by RCA NOS engraved base 1940's (54/40)
815 RCA like new a few stress cracks in base
815 RCA NOS 1940's (1 in stock)
837 US Brands NOS (5 in stock)
837 used/test good
866A GE low hours/like new 1940's
9001 US Brands NOS (26 in stock)
9002 RCA used/good 1940's - 1950 (2 in stock)
