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(READ REVIEW) 12AX7 BRIMAR England shiney black ribbed plates "D" getter 1955 (rare)
(READ REVIEW) 5BQ7A GE gray plates NOS large "U" getter halo 1961 -1964
(READ REVIEW) 5BQ7A RCA black plates NOS 1964 (11.6/14.4ma)
(READ REVIEW) 6SN7GT Tungsol tests like new black coated glass and black round plates 1945 (9.2/9.0ma) (close triode balance)
(slightly microphonic - good value) 5687 Raytheon black plates NOS "square" getter halo 1950's (37/39ma) (strong Ma and Gm)
(slightly microphonic tube) 12AT7 Brimar UK black plates "D" getter halo copper grid posts used/good 1955 era (7.2/8.4ma)
(slightly microphonic tube) 12AU7A RCA tall black ribbed plates "D" getter halo used/good 1950's (8.2/8.8ma)
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (40.5/45.5ma)
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (34.5/36.5ma)
(sold out) 6414 Raytheon triple mica black plates NOS 1950's misbranded E80CC National
* (read review) 6072 GE 5 star triple mica black plates "O" getter halo 1962
12AT7 RCA Black Plates "D" getter used/good mid-1950's
12AZ7 GE black plates "D" getter halo NOS 1955 (11ma/7.5ma)
421A Western Electric NOS 1984 (read review)
5687WA GE used/tests like new 1970's (44/45ma) (highest Ma and Gm)
5814A RCA NOS 1970 era slightly microphonic (10.2/11.2ma)
5963 RCA black ribbed plates" and D getter halo NOS 1957 (sold out - read review)
5BZ7=5BQ7A GE gray plates NOS 1971 (13/16.2ma)
6080 RCA black plates used/good 1956 broken guide pin (66/77ma)
6AS7GA GE black plates NOS 1963 (107ma and 84ma)
