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Preamp tubes

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(!) 12AU7 Tungsol gray ribbed plates NOS square or

(!) 12AU7 Tungsol gray ribbed plates NOS square or "D" getter halo 1954 in white box (8.2/8.6ma)

$ 42.99
(!) 12AU7A Hitachi JAPAN branded Realistic Lifetime NOS ribbed plates 1960 era (9.2/12.2ma)

(!) 12AU7A Hitachi JAPAN branded Realistic Lifetime NOS ribbed plates 1960 era (9.2/12.2ma)

$ 29.99
(!!!) (Good Value Single) 12AX7 GE tall narrow ribbed plates used/good

(!!!) (Good Value Single) 12AX7 GE tall narrow ribbed plates used/good "D" getter 1952 (Gm=1300/1600) (oldest 12AX7)

$ 79.99
(!) (Best Value) 7025A=12AX7A China branded International Yugo NOS 1990's (1.0/0.9ma and Gm=1700/1600)

(!) (Best Value) 7025A=12AX7A China branded International Yugo NOS 1990's (1.0/0.9ma and Gm=1700/1600)

$ 29.99
(!) 12BH7A GE gray oval plates

(!) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (7.2ma/8.5ma)

$ 24.99
(!) 12BH7A Toshiba rebranded

(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)

$ 29.99
(!) 12HG7=12GN7A GE USA NOS (52ma and 56ma)

(!) 12HG7=12GN7A GE USA NOS (52ma and 56ma)

$ 19.99
(!) 12HG7=12GN7A GE USA NOS (62ma and 66ma)

(!) 12HG7=12GN7A GE USA NOS (62ma and 66ma)

$ 19.99
(!) 12HG7=12GN7A GE USA NOS (71ma and 68ma)

(!) 12HG7=12GN7A GE USA NOS (71ma and 68ma)

$ 19.99
(!!!) 1L6 Sylvania branded GE NOS 1973 original box (115/60)

(!!!) 1L6 Sylvania branded GE NOS 1973 original box (115/60)

$ 79.99
(!) 1L6 Sylvania NOS 1957 smeared printing (20/16)

(!) 1L6 Sylvania NOS 1957 smeared printing (20/16)

$ 79.99
(!) 244A Western Electric NOS 1952 smaller side getter (4.4ma)

(!) 244A Western Electric NOS 1952 smaller side getter (4.4ma)

$ 179.99
(!) 30 Cunningham NOS 1940's original box (2.7ma)

(!) 30 Cunningham NOS 1940's original box (2.7ma)

$ 14.99
(!) 30 Philco engraved base NOS 1930's (3.7ma)

(!) 30 Philco engraved base NOS 1930's (3.7ma)

$ 18.99
(!!!!) (Single) 2C51=396A Western Electric D getter used/good 1954, pin #4 shorter (5.0ma/5.6ma)

(!!!!) (Single) 2C51=396A Western Electric D getter used/good 1954, pin #4 shorter (5.0ma/5.6ma)

$ 88.88
(!) 448A Western Electric smooth top used/good

(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)

$ 109.99
(!) 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)

(!) 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)

$ 69.99
(!) 448A Western Electric smooth top used/good 1971 (1 pair: 28ma and 29.4ma) (Matched on Amplitrex)

(!) 448A Western Electric smooth top used/good 1971 (1 pair: 28ma and 29.4ma) (Matched on Amplitrex)

$ 79.99
(!) 448A Western Electric smooth top used/strong 1965-1970 (1 pair: 37ma and 37.5ma) (Matched on Amplitrex)

(!) 448A Western Electric smooth top used/strong 1965-1970 (1 pair: 37ma and 37.5ma) (Matched on Amplitrex)

$ 99.99
(!) 448A Western Electric smooth top used/strong 1966-1970 (1 pair: 37ma and 40.5ma) (Matched on Amplitrex)

(!) 448A Western Electric smooth top used/strong 1966-1970 (1 pair: 37ma and 40.5ma) (Matched on Amplitrex)

$ 99.99
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