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(!) (BEST PAIR) 6AL5 GE NOS 1960's (48-48/40 and 48-50/40)
(!) (BEST PAIR) 6CA4 RCA NOS 1960's - 1972 (54-56/40 and 54-54/40) (Wright, Counterpoint, Cary, Zanden)
(!) (BEST PAIR) 6CA4=EZ81 Sylvania NOS 1960's (53-54/40 and 52-53/40)
(!) (BEST SINGLE #2) GZ32 Miniwatt Dario France NOS around 1955 slightly tilted glass (61/40 and 62/40) very small rattle inside base
(!) (Best Single) 5726=6AL5W Raytheon NOS 1960's (50/40 and 50/40)
(!) (Best Single) 6ZY5G GE NOS 1951 (55/40 and 56/40)
(!) (Best Single) 6ZY5G Raytheon NOS 1940's (53/40 and 54/40)
(!) (Best Value Single) 5U4G Dumont by Tungsol used/good 1954 (50/40 and 52/40)
(!) (READ REVIEW) CV1377=GZ34 Mullard Blackburn UK NOS 1976
(!) (~ Best AZ50 Pair ~) AZ50 Miniwatt Dario France NOS 1954 (rare pair)
(!) 5AU4 GE NOS 1961 (52/40 and 54/40)
(!) 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 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)
(!) VT-80 Sylvania used/strong 1940's (58/40 and 60/40)
(BEST PAIR) 3DG4 RCA NOS original boxes 1971 (1 pair)
(BEST PRICE) 25Z6GT US Brands NOS (10 for $29.99)