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Preamp tubes

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(!!!!!) (Best Value Pair) 12AT7=ECC81 Telefunken Germany Diamond Bottom <> used/good 1960's (7.6/6.2ma and 6.2/7.2ma)

(!!!!!) (Best Value Pair) 12AT7=ECC81 Telefunken Germany Diamond Bottom <> used/good 1960's (7.6/6.2ma and 6.2/7.2ma)

$ 88.88
(!!!!) (Best Value Pair) JAN-12AT7WC Sylvania black plates NOS 1980 (8.6/7.6ma and 9.0/7.5ma)

(!!!!) (Best Value Pair) JAN-12AT7WC Sylvania black plates NOS 1980 (8.6/7.6ma and 9.0/7.5ma)

$ 49.99
(!!!) (Best 12AT7WC Single) JAN-12AT7WC Sylvania black plates NOS 1978 (9/10ma)

(!!!) (Best 12AT7WC Single) JAN-12AT7WC Sylvania black plates NOS 1978 (9/10ma)

$ 24.99
(!!!) (Good Value Single) ECC81=12AT7 Mullard old logo made in Hyperlec Brive France used/good (8.4/9.8ma)

(!!!) (Good Value Single) ECC81=12AT7 Mullard old logo made in Hyperlec Brive France used/good (8.4/9.8ma)

$ 19.99
(!!!) (Good Value) E81CC=12AT7 Haltron England NOS around 1960 (8.4/10.2ma)

(!!!) (Good Value) E81CC=12AT7 Haltron England NOS around 1960 (8.4/10.2ma)

$ 24.99
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (7ma/11ma) (recommended for mic)

(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (7ma/11ma) (recommended for mic)

$ 89.99
(!!!) (Recommended Single) 12AT7=ECC81 Siemens Halske Germany NOS 1960 (10.3ma/11ma)

(!!!) (Recommended Single) 12AT7=ECC81 Siemens Halske Germany NOS 1960 (10.3ma/11ma)

$ 59.99
(!!!) (slightly microphonic) ECC81=12AT7 Miniwatt by Mullard NOS 1970 (9.6/10.6ma)

(!!!) (slightly microphonic) ECC81=12AT7 Miniwatt by Mullard NOS 1970 (9.6/10.6ma)

$ 39.99
(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1971 (7.2/8.0ma and 7.6/6.6ma) (close Gm)

(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1971 (7.2/8.0ma and 7.6/6.6ma) (close Gm)

$ 74.99
(!!!) (Set of 10 tubes) 12AT7 GE NOS 1961 (set of 10 individual tubes)

(!!!) (Set of 10 tubes) 12AT7 GE NOS 1961 (set of 10 individual tubes)

$ 219.99
(!!) (Best Pair #2) ECC81=12AT7 Philips by Mullard and Mullard UK NOS 1965-1970 (10.5/12ma and 11.2/10.6ma) (sweet sound)

(!!) (Best Pair #2) ECC81=12AT7 Philips by Mullard and Mullard UK NOS 1965-1970 (10.5/12ma and 11.2/10.6ma) (sweet sound)

$ 159.99
(!!) (#1 12AT7 France) 12AT7 Philips Miniwatt France NOS 1964 in white box (7.4/7.8ma)

(!!) (#1 12AT7 France) 12AT7 Philips Miniwatt France NOS 1964 in white box (7.4/7.8ma)

$ 59.99
(!!!!) (BEST SINGLE) 6201=12AT7WC GE

(!!!!) (BEST SINGLE) 6201=12AT7WC GE "5 STAR" NOS double mica, copper grid posts, gray plates, 1972 (9.8/10.5ma)

$ 39.99
(!!) (Best Pair) 12DT8 RCA gray plates NOS 1970's (11/12.2ma and 11/12.6ma)

(!!) (Best Pair) 12DT8 RCA gray plates NOS 1970's (11/12.2ma and 11/12.6ma)

$ 39.99
(!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good early 1960's (9.0ma/9.4ma)

(!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good early 1960's (9.0ma/9.4ma)

$ 59.99
(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)

(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)

$ 79.99
(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good early 1960's (7.8ma/10.8ma)

(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good early 1960's (7.8ma/10.8ma)

$ 49.99
(!!) (Recommended from 1950's) 12AT7WA Sylvania gray plates triple mica

(!!) (Recommended from 1950's) 12AT7WA Sylvania gray plates triple mica "D" getter halo tests like new 1950's (9.4/12.0ma)

$ 19.99
(!!) (Recommended from 1958) JHS-12AT7WA Sylvania triple mica

(!!) (Recommended from 1958) JHS-12AT7WA Sylvania triple mica "D" getter NOS 1958 (11.6/15ma) (phase inverter, reverb)

$ 29.99
(!!) (Recommended from 1964) 12AT7WA Sylvania NOS 1964 (7.0/8.4ma)

(!!) (Recommended from 1964) 12AT7WA Sylvania NOS 1964 (7.0/8.4ma)

$ 19.99
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