(!!!) (Recommended Single) JHS-6AN8A Sylvania NOS 1966 (13.6/16.5ma)
(!!) (Recommended Single) 6AN8 Sylvania NOS 1960 era (17/14.8ma)
(!!) (Recommended Single) 6AN8A Sylvania NOS 1960's (16.4/11.5ma)
(!!) 6AN8A Sylvania coated glass NOS 1960's (20.2/11.2ma)
(!) 6AN8 RCA black plates "D" getter halo 1958 rebranded Admiral (14.2/10.5ma)
6AN8A RCA gray plates used/tests like new 1960's (16.6/12.4ma)
