(!!!!) (Best Single) 12BH7A Sylvania rebranded GE black oval plates "U" getter NOS 1956 era (11.2/14ma)
(!!!!) (Best Single) 420A Western Electric NOS 1977 (2.2/2.3ma) 1-2% section balance
(!!!!) (Best Single) 5U4G RCA used/tests like new "D" getter 1955 (56/40 and 56/40) 1% section balance
(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (57/40 and 57/40) 1% diode balance
(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (60/40 and 61/40) 1-2% diode balance
(!!!!) (Best Single) 6SN7WGT Sylvania "Chrome Top" brown base NOS 1952 (10/9.4ma) (close Gm)
(!!!!) (Best Single) CV181=ECC32 Mullard black base black plates NOS 1950's (6.6/6.3ma)
(!!!!) (Best Sylvania Pair) 6X5GT Sylvania NOS 1951 (50-53/40 and 52-53/40)
(!!!!) (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 Pair) 6B4G Raytheon NOS 1940's separate plates, 1 branded Philco (90ma and 91.5ma)
(!!!!) (BEST VALUE SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (58/40 and 60/40) (2 in stock)
(!!!!) (Good Value Single) 396A Western Electric NOS 1974 (5.8/4.8ma)
(!!!!) (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700)
(!!!!) (Recommended 6106) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (67/40 and 68/40)
(!!!!) (Recommended Mullard Single) 6DJ8 RCA Mullard NOS "A" Frame getter halo 1976 (10.6/12.6ma)
(!!!!) (Recommended PAIR) 5U4GB Raytheon NOS "O" getters 1962 (58-60/40 x 2 tubes)
(!!!!) (Recommended Pair) 5U4GB RCA NOS and like new 1962 (56-58/40 and 56-58/40)
(!!!!) (Recommended Pair) 5V4G National Union NOS 1951 same date codes (58-59/40 and 57-58/40 x 2 tubes) 1-3% matched
(!!!!) (Recommended Pair) 5V4G RCA 1950's low hours/like new (60-62/40 and 60-64/40)