(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" NOS gray plates triple mica "U" getter 1956 (2.1/2.2ma)
(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.8/12.4ma and 10.8/11.5ma)
(!!!!) (Best 5 Star Single) 5751 GE 5-Star gray plates NOS 1964 (2.1/2.5ma)
(!!!!) (Best 5 Star Single) 5751 GE 5-Star gray plates NOS 1964 (2.8/3.1ma)
(!!!!) (Best Single 1957) JG-5751WA GE NOS black plates triple mica U getter halo 1957 (2.3/2.7ma) (High mA and Gm)
(!!!!) (Good Value Pair) 12BH7A GE NOS gray oval plates "o" getter halo 1961-1965 (7.2/6.6ma and 8.4/6.8ma)
(!!!) (Best Overall Single) 5751 GE 5 Star NOS 1965 (2.6/2.6ma) 1% section balance
(!!!) (BEST PAIR) 6463 GE NOS 1965 (16.4/16.5ma and 16.8/17.8ma) (same pinout as 6350)
(!!!) (BEST PAIR) 6463 GE NOS 1966 (16.8/21ma and 17.6/21.5ma) (Highest mA and Gm)
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.0/9.2ma and 9.2/10ma) 1-3% matched
(!!!) (Good Value) JG-5814A GE triple mica "U" getter halo like new 1955 in white box (8.8/9.6ma)
(!!!) (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma)
(!!!) (Recommended PAIR) 6463 GE NOS 1965 (15.0/16.4ma and 15.6/15.8ma) (same pinout as 6350)
(!!!) (Recommended Single) 12AT7 Tungsol rebranded AKRAD "U" getter NOS 1956 (6.2/6.6ma)
(!!!) (Slightly microphonic Single) 12BH7A CBS Oval Black Plates "U" getter NOS 1960 era (8.4/9.0ma)
(!!!) 12BH7 GE Silvertone gray oval plates NOS "U" getter 1953 (8.2/8.0ma)
(!!!) 12BH7A GE NOS gray oval plates 1960's (9.5/13.5ma)
(!!!) 6S4A RCA black plate NOS 1960's faded printing (20ma)
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)
(!!) (Best Value Pair) 6BL7GTA GE NOS and like new 1960's same build (41.5/43ma and 44/46ma) (Highest Ma)