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(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960's used/good (45ma and 46.5ma)
(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960's used/good (50ma and 52ma)
(!!) (PAIR) 6LX6=6LF6 GE NOS (90ma and 92ma) (same Gm)
(!!) (Pair) 6S4A GE NOS 1969-1970 (24.0ma and 25.5ma)
(!!) (Pair) 6SJ7 GE metal can NOS 1977 (2.4ma and 2.3ma) (same Gm)
(!!) (PAIR) 6V6 GE metal can NOS 1976 (34.5ma and 34.0ma) 1-5% matched
(!!) (PAIR) 6V6 GE metal can NOS 1976 (37ma and 38ma)
(!!) (PAIR) 713A Western Electric by Tungsol NOS 1942-1943 (6.2ma and 6.3ma)
(!!) (Pair) 71A RCA Victor and Super Silvertone used/good 1930's - 1940's (21.5ma and 25ma) (Same Gm)
(!!) (PAIR) 7AF7 Sylvania branded RCA and GE NOS black round plates NOS 1956-1958 (7.0/7.6ma and 8.2/7.8ma) (close Gm matching)
(!!) (PAIR) 811 RCA and RCA branded GE like new 1947-1951 (57/36 and 52/36)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968 (13.4ma and 13.8ma)
(!!) (Pair) EL822 Mullard black plate NOS 1973-1974 (40ma and 41ma)
(!!) (PAIR) EL86 GE Japan by Toshiba 1976 era (64ma and 63ma)
(!!) (Pinched Waist 1959) E80F=6084 Philips Miniwatt Holland PQ "Pinched Waist" with "D" getter like new 1959 (3.0ma)
(!!) (RCA Pair) 6CS7 RCA NOS 1962-1965 (17/11ma and 17/12.6ma)
(!!) (Read Review) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (64-66/40 x 2 tubes)
(!!) (Read Review) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (11.2ma and 11.2ma) (close Gm)
(!!) (Recommeded Pair) 6BX7GT GE branded NOS "D" getter 1958 - 1 tube branded RCA (72ma/95ma and 92/87ma) (highest mA and Gm)
(!!) (Recommended 27 Balloon) C-327 Cunningham Balloon mesh-plate used/very good 1930's (5.2ma)
