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(!!!!) (BEST SINGLE #1) 5U4GB Raytheon "O" getter NOS 1962 (58/40 and 60/40) (1 in stock)
(!!!!) (BEST SINGLE #1) 5U4GB Raytheon "O" getter NOS 1962 (59/40 and 60/40)
(!!!!) (Best Single #2) 6X5GT Philips Miniwatt Australia NOS 1940's (50/40 and 50/40)
(!!!!) (Best Single #2) JAN-5998 Tungsol NOS black plates NOS 1966 same build as 421A Western Electric (117ma/141ma) (close Gm balance) (can make pair with Best Single #3)
(!!!!) (Best Single #3) JAN-5998 Tungsol NOS black plates NOS 1966 same build as 421A Western Electric (114ma/143ma)
(!!!!) (Best Single #4) JAN-5998 Tungsol NOS black plates NOS 1966 same build as 421A Western Electric (87ma/73ma)
(!!!!) (Best Single 1969) 6DJ8 IEC Mullard used/tests like new 1969 (18.2/18.0ma) 1-2% section balance (sweet midrange)
(!!!!) (Best Single) 12BH7A Sylvania Silvertone gray oval plates large "D" getter halo 1950's NOS (13.6/12.4ma)
(!!!!) (Best Single) 6X5GT Philips Miniwatt Australia NOS 1940's (55/40 and 53/40) (rare) (Mapletree, Audio Note)
(!!!!) (Best Single) ECC32=CV181 Mullard branded Philips Miniwatt brown base/black plates "D" getter halo mid-1950's (6.2/6.4ma) 1-2% section balance
(!!!!) (Best Single) JAN-CHS-6SL7WGT Sylvania brown base round black plates "D" getter NOS 1959 (2.6/2.6ma) 1% section balance (Highest mA and Gm)
(!!!!) (Best Tungsol Single) 6V6GT Tungsol gray plate/coated glass NOS 1945 era - some surface oxidation on metal can (45.5ma)
(!!!!) (Best Value Pair #1) 6B4G Raytheon NOS 1940's separate plates in white boxes (89ma and 92ma)
(!!!!) (Best Value Pair) 6B4G Raytheon NOS 1940's separate plates, 1 branded Philco (90ma and 91.5ma)
(!!!!) (Best Value Pair) 6X5GT Philips Miniwatt Australia NOS 1940's (50-53/40 and 50-55/40)
(!!!!) (Best Value Single) 12AU7A Sylvania low hours like new 1960's (8.8/8.4ma)
(!!!!) (Best Value Single) 12AX7 Westinghouse gray pinched plates "D" getter like new 1960 faded printing (Gm=1800/1800 and 1.4/1.3mA) (same plate structure as 5751)
(!!!!) (Best Value Single) 5U4G Emerson by RCA used/tests like new 1954 (57/40 and 58/40)
(!!!!) (Best Value Single) 5U4G Emerson by Tungsol used/very good rattle inside base from dried glue particles 1952 (52/40 and 52/40)
(!!!!) (Best Value Single) 5U4G Ken Rad used/good 1940's (48/40 and 50/40)
