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(!!!!!) (Single) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (9.8/14.2ma) (similar sound to RCA) (McIntosh, VTL, Manley, Quicksilver)
(!!!!) (Best Single) 12BH7A Sylvania Silvertone gray oval plates large "D" getter halo 1950's NOS (13.6/12.4ma)
(!!!!) (Good Value Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched - slightly faded top getters (54-55/40 x 2 tubes)
(!!!!) (Single) 12BH7A Sylvania gray oval plates "O" getter NOS 1960 era (10.4/7.6ma)
(!!!!) (Single) 12BH7A Sylvania Silvertone gray oval plates large "O" getter halo 1960 era NOS (11.5/10.6ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!!) (2nd Best GE Pair 1956) JG-6021 GE NOS "D" getter halo 1956 (6.3/5.9ma and 5.7/6.2ma) (mil-grade)
(!!!) (BEST PAIR) 6BX7GT Sylvania "D" getter halo NOS 1950's (57.6/62.6ma and 64.0/58.0ma) (close triode balance)
(!!!) (BEST VALUE SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's slightly tilted glass (52/40 and 54/40)
(!!!) (BEST VALUE SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's slightly tilted glass (54/40 and 54/40)
(!!!) (Good Value) 5V4G=CV729 Brimar UK gray plates "D" getter halo 1950's used/good (59/40 and 65/40)
(!!!) (Recommended Single) 6BX7GT GE "O" getter gray plates 1963 (71/76ma)
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse black plates NOS "O" getter 1962 (71/79ma)
(!!!) (Recommended Single) JTL-6X4WA Tungsol NOS 1965 tests like new (64/40 and 66/40) (Highest testing single)
(!!!) (Set of 74) 6X4 US Brands NOS original boxes 1950-1980 era (set of 74)
(!!!) (Single 1956) 6BX7GT GE triple mica "D" getter halo NOS 1956 (41/40ma)
(!!!) (single) ECC81=12AT7 Philips Miniwatt by Mullard UK like new "o" getter 1957 (8.2/7.6ma) (Mitcham plant)
(!!!) (Slightly Microphonic Single) 5670=2C51 Tungsol black plates "D" getter NOS 1958 (9.6/10.2ma)
(!!!) (slightly microphonic) ECC81=12AT7 Miniwatt by Mullard NOS 1970 (9.6/10.6ma)
