(!!!) (PAIR) 5881 Tungsol tests like new 1957 and 1963 with broken center guide pins - see photo (72.5ma and 68.2ma)
(!!!) (READ REVIEW) 5V4G RCA branded GE NOS 1958 (60/40 and 60/40)
(!!!) (Recommended Pair) 6384 Tungsol used/test like new 1960's no printing (71.0ma and 73.5ma) (Highest mA)
(!!!) (Recommended Pair) JAN-6384 Tungsol used/test like new 1970-1972 (62.5ma and 66ma)
(!!!) (Recommended Pair) JTL-5654=6AK5W Tungsol gray plate "D" getter used/good 1956-1958 (6.4ma and 6.5ma)
(!!!) (Recommended Single) 127 Arcturus Blue Balloon used/good 1930 era in white box (4.3ma)
(!!!) (Recommended Single) 12AT7 Tungsol rebranded AKRAD "U" getter NOS 1956 (6.2/6.6ma)
(!!!) (Recommended Single) 12AY7 GE NOS 1970 (2.0/2.3ma)
(!!!) (Recommended Single) 12AY7 Tungsol tall gray ribbed plates rebranded Raytheon NOS "D" getter 1950's (3.3/4.0ma)
(!!!) (Recommended Single) 12BZ7 RCA gray plates branded Tungsol NOS 1960's (2.0/2.1ma) 1-2% section balance
(!!!) (Recommended Single) 5687 Tungsol branded Amperex black plate/bronze-black plate (38ma/43.5ma)
(!!!) (Recommended Single) 5881 Tungsol like new 1957 (86ma)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (112/119mA)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (115/111mA)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (124/130mA)
(!!!) (Recommended Single) 6336A Tungsol NOS 1960 era (75/80ma) ***
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (53/40 and 54/40)
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 55/40)
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 56/40)
(!!!) (Recommended Single) 6X4W Tungsol NOS 1966 (50/40 and 50/40)
