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(!) 5AU4 GE NOS 1961 (52/40 and 54/40)
(!) 5U4G Sylvania rebranded Motorola used/good 1951 (48/40 and 52/40)
(!) 5U4G Windsor by Sylvania used/good 1947 faded getter (54/40 and 56/40)
(!) 80 Delco by Sylvania ST-shape used/tests like new 1947 rattle inside base (57/40 and 60/40)
(!) 80 GE Uruguay GT-shape NOS 1950's tilted glass (58/40 and 60/40)
(!) 80 Hygrade Sylvania experimental tube used/strong 1940 era (54/40 and 52/40)
(!) 80 Ken Rad ST-shape tests like new mid-1940's (52/40 and 54/40)
(!) 80 National Union NOS 1950 era (54/40 and 58/40)
(!) 80 Sylvania GT-shape NOS tilted glass (52/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (54/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (57/40 and 60/40)
(!) 80 Tungsol ST-shape used/good 1946 (52/40 and 54/40)
(!) EZ80 Philips Miniwatt France used/tests like new 1961 (63/40 and 64/40)
(!) EZ80=6V4 Tungsram Hungary NOS 1960's (58/40 and 60/40)
(!) JAN-6X4WA Sylvania used/good 1967 (48/40 and 50/40)
(!) JAN-CEA-5R4WGB Bendix NOS 1962 original box (51/40 and 54/40)
(!) JHS-6X4W Sylvania NOS 1961 (54/40 and 55/40)
(!) U19 GEC UK NOS 1960's (1 pair)
(!) VT-80 Sylvania used/strong 1940's (58/40 and 60/40)
(1) (Best Value) 5V4G RCA used/tests like new 1954 (59/40 and 60/40)