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(!) 12AT7WA Raytheon NOS black plates - triple mica - O getter halo 1960's mis-matched triode sections (7/12ma)
(!) 12AU7 Tungsol gray ribbed plates NOS square or "D" getter halo 1954 in white box (8.2/8.6ma)
(!) 12AU7A Hitachi JAPAN branded Realistic Lifetime NOS ribbed plates 1960 era (9.2/12.2ma)
(!) 12AU7A Sylvania NOS 1960 (10/10.1ma) 1-2% section balance
(!) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (7.2ma/8.5ma)
(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)
(!) 12SN7GTA GE NOS 1958 (9.0/7.5ma) (same Gm)
(!) 201A Aristocrat NOS 1930's (2.7ma and Gm=900)
(!) 244A Western Electric NOS 1952 smaller side getter (4.4ma)
(!) 30 Cunningham NOS 1940's original box (2.7ma)
(!) 407B Western Electric NOS 1968 (45-47/26)
(!) 417A/5842 LM Ericsson Sweden used/good "O" getter halo 1960's (19ma and Gm=23,900)
(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)
(!) 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 1971 (1 pair: 28ma and 29.4ma) (Matched on Amplitrex)
(!) 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 1966-1970 (1 pair: 37ma and 40.5ma) (Matched on Amplitrex)
(!) 5687 Raytheon part bronze part black plates used/tests like new 1960 (33/38ma)
(!) 5751 GE gray plates double mica used/good 1970's no printing (2.0/2.3ma)
(!) 5751 GE gray plates double mica used/very good 1960's no printing (2.2/2.1ma) (strong Gm)
