(!!!!!) (Recommended Pair) 12BH7A GE NOS gray oval plates large "U" getter 1957-1960 (10/12ma and 10.2/14.2ma) (McIntosh, Quicksilver, Art Audio)
(!!!!!) (Recommended Pair) 6350 Sylvania black plates NOS 1950's "D=SQUARE" getter rebranded United (8.8/9.2ma and 9/10.2ma)
(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.5/10.9ma and 10.0/10.7ma) 1-3% matched
(!!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1955 and 1968 (91ma and 96ma) (these are some of the best sounding 6B4G ever made)
(!!!!!) (Recommended Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (8.0ma and 8.4ma)
(!!!!!) (Recommended Pair) 6SN7GT Tungsol parallel gray plates large "O" mica ears NOS 1953 (6.4/6.6ma and 6.4/6.8ma) (rare version) (Cary, Rogue)
(!!!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (56/40 and 60/40)
(!!!!) (Best 6094 Quad) JAN-CEA-6094 Bendix gold pins NOS 1957 (55/57/57/58ma)
(!!!!) (Best KR Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (9.8ma and 9.4ma)
(!!!!) (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
(!!!!) (BEST OVERALL PAIR) 5U4GB RCA NOS 1973 (60-60/40 and 60-60/40) 1% matched
(!!!!) (BEST OVERALL QUAD) 5U4GB Raytheon NOS "O" getters 1962 1-2% matched
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-2% matched
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-3% matched
(!!!!) (Best Pair #1) 6J5GT Ken Rad black ribbed plates NOS 1942 (10.8ma and 11.2ma)
(!!!!) (Best Pair) 0A3 GE NOS 1956-1961 (neon)
(!!!!) (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) 6AC7 RCA NOS 1960's (11ma and 11.8ma)