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(Best Single) 12BE6 GE branded RCA NOS 1960's (2.4ma)
(Best Single) 12DT8 Sylvania black plates NOS 1970's (12.4/13.6ma)
(Best SIngle) 6AW8A Sylvania NOS 1970's (3.9/23ma)
(Best Single) 6DN7 GE branded RCA NOS 1962 (45ma and 8.2ma)
(BEST SINGLE) 6DN7 RCA NOS 1968 (38ma and 10.2ma)
(Best Single) 6DN7 Sylvania NOS 1960's (60ma/8.3ma)
(Best Single) 6KT8 US Brands NOS (7/16) (highest testing single)
(Best Single) 6SF5 GE NOS 1958 (2.1ma) (strong single)
(BEST SINGLE) 6SF5GT Tungsol NOS 1940's (1.1ma Gm=1500)
(Best Single) ECC34 Mullard NOS 1950's (10.1ma/10.2ma)
(Best Value) 6GV8=ECL85 RCA Mexico NOS (2 in stock)
(BEST VALUE) ECC808=6KX8 Telefunken Diamond Bottom <> NOS 1969 faded printing from rubbing inside box (0.8/1.0ma Gm=1350/1500)
(BEST) 14R7 RCA Victor NOS 1940's (98/60)
(Best) 1U4 Tungsol NOS 1953 (1 in stock)
(DISPLAY TUBE) 216A Western Electric used 1920's
(Henry Sennett pair) JAN-5842WA Raytheon NOS 1984-1985
(microphonic single) 12AT7 Philips Miniwatt made in Hamburg, Germany by VALVO NOS "D" getter halo 1959 (8.8/10.2ma)
(PAIR) 12BD6 RCA NOS (85-90/60)
(PAIR) 12BD6 Sylvania NOS 1952 (72/60 and 72/60)
(PAIR) 6CQ6=EF92 Brimar England used/good 1956 (82/60 and 82/60)
