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6EM7 RCA black plates NOS 1965 (1.2ma and 30ma)
(!!!!) (SINGLE) 6BL7GTA RCA NOS 1966 (33.4/33.0ma)
CK-5704 Raytheon NOS (6 in stock)
RK-23 Raytheon 4-Pillar NOS 1940's reboxed
38233=2C21 Raytheon ceramic base NOS 1930's
6AC10 GE NOS rebranded various names (5 in stock)
6AC10 Sylvania NOS (3 in stock)
6AC10 GE branded RCA NOS (1 in stock)
12B4A RCA NOS 1960's (31.5ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.9/2.1ma and 2.1/2.1ma)
(!!!) (3rd Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.6/2.0ma and 1.6/2.0ma) 1% matched
(!!!) (4th Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.7/1.8ma and 1.8/1.9ma)
(!) (Best Single) 6GK5=6FQ5A Sylvania branded Raytheon NOS (15.2ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (11.0ma and 11.4ma)
6EM7 Sylvania Silvertone NOS 1960's (1.5ma/55ma)
(!!!) (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma)
(!!!!) (RCA Single) 6F8G RCA round black plates tests like new 1940-1945 no printing (9.6/9.8ma) (1st series made)
(!!!) (Single) 6J5G Sylvania engraved base black oval plate used/very good 1930's (8.0ma)
(!!!) (Best Single) 12BH7A CBS Oval Black Plates "O" getter NOS 1960 (11/12.5ma)
6AG5 GE "D" getter NOS 1955 (7.6ma)