(!!!!) (Recommended Single) 12AY7 GE NOS 1960's (2.2/2.5ma)
(read review) 12AY7 GE branded RCA gray plates "D" getter NOS 1954 (2.3/2.9ma)
(!!!) (Recommended Single) 12AY7 Tungsol tall gray ribbed plates rebranded Raytheon NOS "D" getter 1950's (3.3/4.0ma)
(!!) (Recommended Single) 12AY7 Sylvania Zenith NOS 1960's (3.2/3.0ma)
(!!!) (Best Single) JG-12AY7 GE "GRAY BOX PLATES" and "D" getter NOS 1953 (3.0/3.4ma)
(!!!) (Recommended Single) 12AY7 GE NOS 1970 (2.0/2.3ma)
(!!!) (Best RCA Single) 6072 RCA NOS black plates 1967 (2.0/2.0ma) (Fender, Apex)
(!!!) (Best Single) 12AY7 GE "GRAY BOX PLATES" and "D" getter NOS 1953 (3.1/3.3ma)