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Preamp tubes

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(!!!!) (BEST OVERALL SINGLE) 12AU7A GE NOS 1958 copper grid posts (11.8/11.4ma) 1-3% section balance

(!!!!) (BEST OVERALL SINGLE) 12AU7A GE NOS 1958 copper grid posts (11.8/11.4ma) 1-3% section balance

$ 39.99
(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance

(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance

$ 29.99
(!!!!) (SINGLE) 12AU7A GE NOS 1976 copper grid posts (9.4/8.8ma)

(!!!!) (SINGLE) 12AU7A GE NOS 1976 copper grid posts (9.4/8.8ma)

$ 31.99
(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1975 (19/24.5ma)

(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1975 (19/24.5ma)

$ 49.99
(!!!!) (SINGLE) 12AU7A GE NOS 1972 copper grid posts (10.6/9.8ma) (warm and smooth)

(!!!!) (SINGLE) 12AU7A GE NOS 1972 copper grid posts (10.6/9.8ma) (warm and smooth)

$ 34.99
1U5 Sylvania NOS (116/60)

1U5 Sylvania NOS (116/60)

$ 12.99

6KE8 Raytheon Japan NOS (20 in stock)

$ 3.99
(!!!!) (Best Single #3) E182CC=7119 Mullard SQ Holland NOS large

(!!!!) (Best Single #3) E182CC=7119 Mullard SQ Holland NOS large "O" getter halo 1964 (30/34ma)

$ 99.99
(!!!!) (Best Pair #2) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (16.8/12.8ma and 16.0/13.5ma)

(!!!!) (Best Pair #2) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (16.8/12.8ma and 16.0/13.5ma)

$ 24.99
(!!!) (Single) 403A Western Electric NOS

(!!!) (Single) 403A Western Electric NOS "D" getter 1957 (5.7ma)

$ 34.99
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (10.5/11.5ma and 10.0/10.4ma)

(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (10.5/11.5ma and 10.0/10.4ma)

$ 15.99
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (12.8/10.6ma and 11.8/11.6ma)

(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (12.8/10.6ma and 11.8/11.6ma)

$ 15.99
(!!) (Best Pair) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (33.2/33.0ma and 33.3/32.5ma) 1-3% matched

(!!) (Best Pair) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (33.2/33.0ma and 33.3/32.5ma) 1-3% matched

$ 259.99
(!!!) (Best Pair) JRP-5687WA and JAN-5687WA Raytheon bronze plates tests like new 1964 era faded printing (33.4/36.4ma and 33.5/33.0ma)

(!!!) (Best Pair) JRP-5687WA and JAN-5687WA Raytheon bronze plates tests like new 1964 era faded printing (33.4/36.4ma and 33.5/33.0ma)

$ 89.99
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1965 (41/29ma)

(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1965 (41/29ma)

$ 89.99
(!!!) (slightly microphonic pair) E182CC=7119 Mullard SQ Holland NOS

(!!!) (slightly microphonic pair) E182CC=7119 Mullard SQ Holland NOS "O" getter halo 1963 (33.8ma/33.8ma and 35.2/34.4ma) (Same Gm)

$ 159.99
235=35 Ken Rad balloon used/good 1930's (34/26)

235=35 Ken Rad balloon used/good 1930's (34/26)

$ 7.99
(!!!) (Recommended Single) 12AT7 GE NOS 1981 (7.0/6.8ma)

(!!!) (Recommended Single) 12AT7 GE NOS 1981 (7.0/6.8ma)

$ 22.99
(!!!) (Single) 12AT7 GE gray plate NOS 1975 (8.4ma/6.8ma)

(!!!) (Single) 12AT7 GE gray plate NOS 1975 (8.4ma/6.8ma)

$ 24.99

6BJ7 US Brands NOS (4 in stock)

$ 3.99
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