(!!!!!) (Best GT-shape Pair) 80 RCA GT-shape NOS 1959 (54-57/40 and 54-59/40)
(!!!!!) (Best Overall Pair) 5V4G RCA NOS black plates 1950 (60-62/40 and 60-62/40) 1-2% matched (next best to GZ32 Mullard UK)
(!!!!!) (BEST OVERALL SINGLE) CV378=GZ37 Mullard "D" getter NOS 1955 faded printing (56/40 and 56/40) (1st version made with skinny bottle)
(!!!!!) (Best Pair) 5U4GB CBS NOS 1950's double "D" getters (59-59/40 and 58-60/40)
(!!!!!) (BEST SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (56/40 and 56/40) 1% balance
(!!!!!) (BEST SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (57/40 and 58/40)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (56-58/40 and 57-58/40)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (60-64/40 and 60-66/40)
(!!!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (53/40 and 53/40)
(!!!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (56/40 and 60/40)
(!!!!) (2nd Best Pair) 5V4G RCA NOS 1951-1953 (61-61/40 and 60-61/40) 1-2% matched
(!!!!) (Best 6X5GT Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (64/40 and 65/40) (Best Audio Grade 6X5GT)
(!!!!) (Best 6X5GT Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (64/40 and 66/40) (Best Audio Grade 6X5GT)
(!!!!) (Best GE Pair) 5V4GA GE NOS rebranded Sylvania same date codes (63-65/40 and 63-66/40)
(!!!!) (Best GZ34 for the money) GZ34 Raytheon Japan by Matsushita NOS similar sound and build to Mullard NOS 1970's (60/40 and 60/40)
(!!!!) (Best Matched Quad) CV378=GZ37 Mullard NOS 1966 same date codes original boxes
(!!!!) (BEST OVERALL PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-60/40 and 59-60/40) 1% matched
(!!!!) (BEST OVERALL PAIR) 5U4GB Raytheon NOS "O" getters 1962 (61-60/40 and 61-60/40) 1% matched