(!!!) (Best Single) 7025 Sylvania NOS 1960's (Gm=3100/3100)
(!!!) (Recommended Single) 7025 Sylvania NOS 1978 (Gm=2900/3500)
(!!) 7025 Westinghouse gray pinched plates "D" getter NOS 1963 (Gm=1600/1700)