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(!!!!) (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 TUNGSOL NOS 1952 slightly tilted glass (52/40 and 52/40)
(!!!!) (Best Value Single) JAN-CHY-5U4G CBS used/very good "D" getter 1946 (53/40 and 53/40) 1% section balance
(!!!!) (Best Value) 5U4G GE NOS 1952 in white box glass slightly tilted (48/40 and 49/40)
(!!!!) (Good Value Single) 6L6GC Seeburg by RCA black plate used/good 1961 (66ma)
(!!!!) (Recommended GE Pair) 6FQ7 Zenith by GE NOS 1977 1-3% matched (7.0/7.6m and 6.8/7.5ma)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1971 (5.3/5.4ma and 58/55ma)
(!!!!) (Recommended Pair) ECC81=12AT7 Philips by Mullard NOS 1966-1970 (10/9.2ma and 9.3/8.6ma) (Close Gm matching) 1-5% matched
(!!!!) (Recommended Single) 6DJ8 Philips Miniwatt Holland NOS 1960 era large "O" getter halo (18.0/19.4ma)
(!!!!) (Recommended Single) PCC88=7DJ8 Mullard Holland NOS 1973 (11.5/13.8ma)
(!!!!) (Single) 12BH7A GE gray oval plates NOS mid-1960's (11.5/16ma)
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!) (Best Matched Quad #1) 5Y3GT Philips Holland NOS 1960's (1 set of 4)
(!!!) (Best Pair #3) ECC81=12AT7 Mullard UK branded Philips NOS 1970-1973 (9.6/8.4ma and 9.0/9.4ma) (Jolida, Fender)
(!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (58-63/40 and 58-64/40)
(!!!) (Best Pair) 5U4GB Sylvania NOS 1960's (59-62/40 and 60-62/40)
(!!!) (Best Single #1) 6SN7GTB Silvertone by Sylvania NOS 1960 era (10.4ma and 10.8ma) 1-2% section balance (Same Gm)
(!!!) (Best Single #2) 5Y3GT RCA NOS 1970 (56/40 and 60/40)
(!!!) (Best Single #3) 6SN7GTB Sylvania NOS 1960 era (8.6ma and 7.6ma)
