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(!!!) (Recommended Pair) 407A Western Electric NOS

(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1978 (35-43/26 and 37-43/26)

$ 69.99
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates

(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (9.2/10.2ma)

$ 49.99
(!!!) (Recommended Single) JAN-2C51=5670 Sylvania gray plates NOS

(!!!) (Recommended Single) JAN-2C51=5670 Sylvania gray plates NOS "D" getter 1960 (6.2/6.4ma) 1-3% section balance

$ 38.88
(!!!) (SINGLE) 12AU7 RCA tall black plates

(!!!) (SINGLE) 12AU7 RCA tall black plates "D" getter used/good 1950's (9.8/8.2ma)

$ 29.99
(!!!) (Single) JHS-5670 Sylvania NOS 1966 (7.0/6.8ma)

(!!!) (Single) JHS-5670 Sylvania NOS 1966 (7.0/6.8ma)

$ 29.99
(!!!) (slightly microphonic) 12AU7A Westinghouse black plates

(!!!) (slightly microphonic) 12AU7A Westinghouse black plates "D" getter halo 1964 NOS (9.6/10.6ma) (similar to RCA black plates)

$ 29.99
(!!!) 12AU7 RCA tall gray plates

(!!!) 12AU7 RCA tall gray plates "D" getter used/good 1953 (9.2/9.8ma)

$ 29.99
(!!) (Best Overall Single) 407A Western Electric NOS 1963 (53/26 and 53/26) 1-2% section balance

(!!) (Best Overall Single) 407A Western Electric NOS 1963 (53/26 and 53/26) 1-2% section balance

$ 44.44
(!!) (Best Pair #2) 407A Western Electric D getter NOS 1966-1968 (40-40/26 and 42-43/26) 1-5% section balance

(!!) (Best Pair #2) 407A Western Electric D getter NOS 1966-1968 (40-40/26 and 42-43/26) 1-5% section balance

$ 74.44
(!!) (Best Pair) 6J6A Tungsol NOS

(!!) (Best Pair) 6J6A Tungsol NOS "D" getter 1961 (9.4/10.5ma and 9.0/11.4ma)

$ 12.99
(!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS

(!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS "O" getter halo 1960 era (9.8/9.6ma)

$ 59.99
(!!) (Best Single) 12AU7A Westinghouse gray plates

(!!) (Best Single) 12AU7A Westinghouse gray plates "O" getter halo 1960's NOS (10.6/11.2ma)

$ 34.99
(!!) (Best Single) 12AX7A Westinghouse pinched gray plates

(!!) (Best Single) 12AX7A Westinghouse pinched gray plates "D" getter NOS 1965 (1/1ma and Gm=1600/1700) 1-2% section balance

$ 99.99
(!!) (Best Value Used) ECC81=12AT7 Siemens Halske Germany

(!!) (Best Value Used) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good (8.8/7.5ma)

$ 24.99
(!!) (Good Value Single) EL84 Zenith Holland

(!!) (Good Value Single) EL84 Zenith Holland "D" getter used/65% 1959 (35ma)

$ 19.99
(!!) (Good Value Single) EL84 Zenith Holland

(!!) (Good Value Single) EL84 Zenith Holland "D" getter used/very good 1958 (41ma)

$ 59.99
(!!) (Good Value Single) EL84 Zenith Holland

(!!) (Good Value Single) EL84 Zenith Holland "O" getter used/like new 1962 (62ma)

$ 69.99
(!!) (Recommended Pair) 6J6A Tungsol NOS

(!!) (Recommended Pair) 6J6A Tungsol NOS "D" getter 1961 (7.5/8.8ma and 7.8/9.2ma)

$ 10.99
(!!) (slightly microphonic) 12AU7A Raytheon black ribbed plates

(!!) (slightly microphonic) 12AU7A Raytheon black ribbed plates "D" getter halo black coated glass 1951 (8.8/9.6ma)

$ 39.99
(!!) (slightly microphonic) B309=12AT7 GEC UK black plates

(!!) (slightly microphonic) B309=12AT7 GEC UK black plates "D" getter NOS 1950's (9.6/10.8ma)

$ 129.99
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