6EM7 RCA coin-base black plates NOS 1970's broken guide pin (2.4ma/50ma)
6EM7 RCA coin-base black plates used/good 1970's (2.6ma/63ma)
6EM7 RCA coin-base used (2.5ma/28ma)
6EM7 Sylvania NOS 1960's (1.7ma/75ma)
6EM7 Sylvania NOS 1970 (1.5ma/47ma)
6EM7 Sylvania Silvertone NOS 1960's (1.5ma/55ma)
6EN4 US Brands NOS (12 in stock)
6EQ7 US Brands NOS (3 in stock)
6EX6=6CD6GA Raytheon NOS
6GB3A Raytheon NOS (6 in stock)
6GB5 / 6GB5A=EL500 Sylvania Holland NOS 1966-1968 (0 in stock)
6GB5=EL500 RCA France NOS (82/60)
6GK5=6FQ5A GE branded RCA NOS (17.4ma)
6GK5=6FQ5A GE NOS (9ma)
6GK5=6FQ5A Sylvania NOS (10ma)
6JC6A Raytheon Japan NOS 1960's (15.5ma) (High Ma and Gm)
6JC6A Raytheon Japan NOS 1960's (16.0ma) (High Ma and Gm)
6KN6 GE NOS 1974 (123ma)
6R8 Raytheon NOS 1950-1951 (4 in stock)
6SF7 Raytheon NOS 1955 (13.4ma)
