7N7 Philco by Sylvania chrome top "parallel black plates" used/good 1949 (8.4/8.0ma)
7N7 Sylvania branded GE chrome top used/good 1956 (6.0/6.2ma)
7N7 Sylvania branded RCA chrome top used/good 1956 (6.6/8.4ma)
7N7 Sylvania chrome top branded GE low hours/tests like new 1957 (7.4/11.4ma)
7N7 Sylvania chrome top used/good 1956 (6.5/7.0ma)
80 Hytron engraved base used/strong 1930's (60/40 and 62/40)
80 Tungsol like new, 1 internal plate slightly tilted (51/40 and 52/40)
8003 RCA 1940's (display tube does not work - open filament)
8005 RCA used/good 1962 small heat stains on plate (86/50)
800=VT-64 RCA DeForest black plate engraved base used/good 1930's (38ma, Gm=1750) (tested on Amplitrex)
800=VT-64 RCA Lab Development tube charcoal black plate used/good 1940 era (42ma, Gm=2150)
800=VT-64 RCA Radiotron charcoal black plate engraved base used 1930's (42ma, Gm=2000)
8025 RCA NOS original box
8025 RCA used/like new 1940's
807 Radiotron Australia by Amalgamated Wireless Valve (AWA) used/like new, flaked getter (72ma)
807 RCA black plate used/good 1968 (54.2ma)
8072 RCA NOS (4 in stock)
809 RCA ceramic base like new 1940 era (66/42)
809 RCA FAA NOS 1963 in white box (64/42)
809 RCA used/good 1957 (53/42)
