(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (60/40 and 61/40) 1-2% diode balance
(!!!!) (Best Single) CV378=GZ37 Mullard UK NOS 1966 (53/40 and 54/40)
(!!!!) (Best Single) CV378=GZ37 Mullard UK NOS 1967 (50/40 and 50/40) 1% section balance
(!!!!) (Best Single) EZ81=6CA4 Philips Australia NOS 1974 (58/40 and 58/40) (similar sound to EZ81 Holland) 1% section balance
(!!!!) (Best Single) GB-5931 Sylvania brown base gold brand 1960's (60/40 and 65/40)
(!!!!) (Best Single) GZ37 Mullard NOS "O" getter 1966 (52/40 and 52/40)
(!!!!) (Best Sylvania Pair) 6X5GT Sylvania NOS 1951 (50-53/40 and 52-53/40)
(!!!!) (Best Value Pair) 5U4GB GE NOS 1960's (58-60/40 and 60-60/40)
(!!!!) (Best Value Pair) 5U4GB RCA used/low hours like new 1974 (57-61/40 and 57-60/40)
(!!!!) (Best Value Pair) 5U4GB RCA used/low hours like new 1974 (59-60/40 and 59-61/40)
(!!!!) (Best Value Quad) EZ81=6CA4 RFT East Germany (Funkwerk) NOS 1970's (1 quad)
(!!!!) (BEST VALUE SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (58/40 and 60/40) (2 in stock)
(!!!!) (BEST VALUE SINGLE) GZ32 Miniwatt Dario France NOS around 1955 (62/40 and 64/40) rattle inside base
(!!!!) (Best Value Single) GZ34 Mullard NOS rebranded Sylvania NOS 1971 (60/40 and 60/40) (Modwright power supply)
(!!!!) (Best Value Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (63/40 and 66/40) (Best Audio Grade 6X5GT)
(!!!!) (Best Value Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 imperfect printing on base (64/40 and 65/40) (1-2% section balance)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (58/40 and 60/40)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (60/40 and 60/40)
(!!!!) (Recommended 6106) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (67/40 and 68/40)
(!!!!) (Recommended GE Pair) 5U4GB GE NOS 1966 (56-59/40 and 56-58/40)
