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(!!) (Best Single) ECH81=6AJ8 Telefunken Germany <> bottom NOS 1960's faded printing (6.5ma and 13ma)
(!!) (Best Value Single) E88CC=6922 Siemens Halske Germany "O" getter halo used/very good 1963 (11.5/12.6ma) (mic grade)
(!!) (Good Value) 12AT7=ECC81 Siemens Halske Germany used/strong 1964 (8.2ma/12.2ma)
(!!) (Single) PCC88=7DJ8 Philips Holland 1973 (9.5/10.6ma)
(!!) EC92 Siemens Halske NOS rebranded Philips Miniwatt 1968 "O" getter halo (6.8ma)
(!!) EF80=6BX6 Mullard UK "D" getter NOS 1963 faded Mullard logo (10.6ma)
(!) (#1 6CW7 Best Single) ECC84=6CW7 Mullard branded Philips Miniwatt Holland 1962 (10.6/11.0ma)
(!) E88CC=6922 Valvo Holland used/good 1961 (10.2/10.1ma) 1-3% section balance
(BEST PRICE) 85A2=0G3 Bharat Electronics India branded Mullard NOS 1970's (4 tubes for $9.99)
(PAIR) 85A2=0G3 Mullard UK NOS 1955-1959 (1 pair)
(PAIR) 85A2=0G3 Mullard UK NOS 1960-1961 (1 pair)
(READ REVIEW) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.0/6.1ma and 6.0/6.1ma) 1-2% matched
6EJ7 GE NOS (7.3ma)
6GJ7=ECF801 Siemens branded RCA NOS
7586 Siemens West Germany nuvistor NOS 1960's faded printing (84/60)
85A2=0G3 Amperex by Mullard UK NOS 1960's-1974 (8 in stock)
85A2=0G3 Amperex Holland used/good 1960's (8 in stock)
85A2=0G3 Bharat Electronics India branded Mullard NOS 1970's (70 in stock)
E83F=6689 Philips Miniwatt SQ Holland NOS 1964 (10.5ma)
E83F=6689 Siemens Holland NOS 1963 (10.6ma)