6MK8A NOS
6MN8 GE NOS (1 in stock)
6MQ8 US Brands NOS (8 in stock)
6MU8 GE NOS
6MV8 NOS
6N4
6N6G Philco by Sylvania NOS 1940's (41ma)
6N6G Raytheon by Sylvania NOS 1948 (48.8ma)
6N6G Raytheon used/good
6N6G Sylvania NOS 1948 (49ma)
6N6G Tungsol coated glass NOS 1940's (39ma)
6P15P Russian (Best sub is EL83)
6S4A GE Admiral NOS 1965 (27.5ma)
6S4A GE Canada NOS 1965 (27ma)
6S4A Raytheon NOS 1961 (20ma)
6S4A RCA branded Sylvania black plate NOS 1960 era (20.6ma)
6S4A RCA USA black plate NOS 1970's (19ma)
6S4A Sylvania NOS 1960's (20ma)
6S4A Sylvania triple mica NOS 1960's (20.2ma)
6S4A Tungsol branded GE NOS 1966 (21.5ma)
