(!!) 6AS7G Russian branded National NOS 1990's (51ma/77ma)
(!!) 6AS7G Russian branded National NOS 1990's (62ma/65ma)
(!!) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter (9/11.6ma)
(!!)7025 Sylvania gray pinched plates "D" getter 1960 era used/good (Gm=2100/2100)
(!) (Best Single) 6AS7GA RCA black plates NOS 1972 (114ma and 127ma)
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 "U" and "O" getter (7.0/7.4ma and 7.0/6.6ma)
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 (8.3/8.0ma and 8.6/9.8ma)
(!) (Slightly microphonic) JG-5814A GE NOS triple mica "U" getter halo 1956 (10.2/10.4ma) 1-2% section balance (high Ma and Gm)
2A3 Ken Rad coated glass low hours/test like new 1947 (read review)
6201=12AT7 GE "5 STAR" used/good triple mica "U" getter halo, copper grid posts, gray plates, 1957 (6.2/7.8ma)
6973 Sylvania gray plate NOS 1970's (61ma)
6F8G RCA gray ribbed staggered plates NOS no printing 1950's (7ma/8ma)