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(!) E88CC=6922 Valvo Holland used/good 1961 (10.2/10.1ma) 1-3% section balance
(!) ECC189=6ES8 Amperex Globe Logo Holland NOS 1969 (17.8/17.2ma)
(!) ECC88=6DJ8 Siemens Halske Germany branded Hewlett Packard used/60-65% small "o" getter halo 1964 (11.8/11.2ma)
(!) JG-12AT7WA=6201 GE NOS gray plates 1963-1964 (7ma/7.2ma)
(!) JHS-6X4W Sylvania NOS 1961 (54/40 and 55/40)
(!) JTL-12AU7 Tungsol narrow plates "D" getter NOS 1955 bottom mica is tilted (10.4/10.6ma)
(Best SIngle) 6AW8A Sylvania NOS 1970's (3.9/23ma)
(Best Single) 6BQ5 Raytheon NOS 1960's (62ma)
(Best Value Single) 6BQ5 Hitachi Japan used/tests like new 1960's (44.5ma)
(Best Value) 6BQ5 GE branded Westinghouse NOS 1960's (38.5ma)
(Best Value) 6BQ5 GE NOS/80-85% 1959 (36ma)
(Display Tube) KT66 GEC 1960's (WEAK TUBE: LOW Ma and LOW GM) - for display purposes only
(PAIR) 6HV5A GE branded RCA NOS original boxes (101/60 x 2 tubes)
(READ RERVIEW) 6K11=6Q11 GE branded Westinghouse NOS 1960's (88/80, 91/60, 84/60)
(READ REVIEW - GOOD HUMOR) 5BQ7A RCA branded Raytheon black plates "D" getter faded printing 1950's (14.0/13.6ma)
(READ REVIEW) 12AX7 BRIMAR England shiney black ribbed plates "D" getter 1955 (rare)
(READ REVIEW) 5654=6AK5 Raytheon Toshiba Japan NOS 1970's (7.2ma and 7.3ma) (same Gm)
(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) 5U4GB RCA NOS 1966-1968 (60-62/40 and 61-62/40) 1-2% matched (Copy)