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12AJ6 RCA branded CBS NOS 1960's (10 in stock)
12AM8 NOS (1 in stock)
12AT6 Various Brands NOS (4 in stock)
12AT7 East Germany branded "M" Mühlhausen NOS 1970's (7.2/7.6ma)
12AT7 Holland branded CBS Hytron NOS large "D" getter halo 1954 (8.4/10.0ma)
12AT7 RCA Black Plates "D" getter used/good mid-1950's
12AT7=ECC81 Haltron East Germany NOS 19740's (7.2/7.0ma) 1-2% section balance
12AT7 Siemens Halske Germany D getter NOS 1957 (6ma/8ma)
(!!) (Recommended Single) 12AT7=ECC81 Mullard shield logo NOS 1970 (8.0/8.4ma)
(!) 12AT7WA Raytheon NOS black plates - triple mica - O getter halo 1960's mis-matched triode sections (7/12ma)
12AT7WA=6201 GE NOS gray plates 1965 (7.8ma/10.6ma)
12AU6 Sylvania NOS 1960's (9.2ma)
12AU6 US Brands NOS (50 in stock)
12AU7=ECC82 Brimar branded Tronix tall narrow plates used/good 1960 (6.4/7.2ma)
(!!) (Best Value Single) 12AU7A=ECC82 Mullard UK ribbed plates used/tests like new 1962 (Gf1 series) (10.0/12ma) 1-2 section balance (Same Gm)
(!!) 12AU7A Sylvania NOS 1960 era (11.6/9.4ma)
(!!) (Best Value Pair) 12AU7A Sylvania NOS 1970-1975 (9.0/9.1ma and 9.0/8.8ma) (Close Gm)
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (9.2/10.2ma)
12AW6 NOS (7 in stock)
(!!) (Best Value Single) 12AX7=ECC83 Mullard Bogen UK used/good 1966 (Gm=1300/1300) 1% section balance
