(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-3% matched
(!!!!) (Best Pair #1) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (50/40 and 50/40 x 2 tubes) 1% matched
(!!!!) (Best Pair #2) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 50/40 x 2 tubes) 1% matched
(!!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (59-63/40 and 60-64/40)
(!!!!) (BEST PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-62/40 and 60-62/40)
(!!!!) (BEST PAIR) 5V4G National Union NOS 1951 same date codes (56/40 and 56/40 x 2 tubes) 1% matched
(!!!!) (Best Pair) 5V4GA GE NOS (60-60/40 and 60-60/40)
(!!!!) (Best Pair) 5V4GA GE NOS (60-60/40 and 60-62/40)
(!!!!) (Best Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (54-55/40 and 54-55/40 x 2 tubes)
(!!!!) (Best Pair) 80=U50 Marconi Madrid Spain tall bottle NOS 1949 (54-64/40 and 57-62/40)
(!!!!) (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)
(!!!!) (BEST PRICE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (3 in stock)
(!!!!) (Best RCA Pair) 5V4GA RCA gray plates NOS 1968-1972 (58-58/40 and 59-59/40)
(!!!!) (Best Single 1975) GZ34 Mullard UK NOS 1975 (59/40 and 60/40)
(!!!!) (BEST SINGLE) 5U4G National Union NOS 1951 (56/40 and 58/40)
(!!!!) (BEST SINGLE) 5U4G TUNGSOL NOS 1953 (56/40 and 52/40)
(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (57/40 and 57/40) 1% diode balance
(!!!!) (Best Single) 5V4G RCA NOS 1951 (62/40 and 62/40) 1% section balance
(!!!!) (Best Single) 5Y3GT RCA Motorola NOS 1960 (61/40 and 65/40)
(!!!!) (Best Single) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (63/40 and 64/40)
