(!!) (Recommended Single) 6350 Sylvania black plate NOS "U" getter halo 1957 (9/10ma)
(!!) (Single) 2C51 Tungsol black plates "O" getter halo tests like new 1960's faded printing (7.6/7.0ma)
(!!) (Single) 5814WA GE NOS 1962-1963 (9/10.2ma)
(!!) (Single) JAN-5670W GE used/good 1970's (6.8/6.0ma)
(!!) 12SN7GT Sylvania Philco chrome top black plates NOS 1956 (8.2/8.4ma)
(!!) 5Z3G Westinghouse NOS 1957 (59/40 and 61/40)
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!!) JG-12AY7 GE "D" getter 1956 used/good (2.1/2.3ma)
(!) (Best Value Single) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good (8.8/7.5ma)
(!) (Best Value) 5Z3G RCA Victor NOS 1940's (48/40 and 49/40)
(!) (Recommended Single) 5Z3G FAA RCA NOS 1962 (56/40 and 56/40)
(!) (Slightly microphonic) JG-5814A GE NOS triple mica "U" getter halo 1956 (10.2/10.4ma) 1-2% section balance (high Ma and Gm)
(Best Single) EC90=6C4 Mullard branded Philips UK box plate NOS 1967 (11ma)
0C3W Tungsol rebranded 0C3 National NOS (2 in stock) (argon)
12AT7 Siemens Halske Germany D getter NOS 1957 (6ma/8ma)
12B4A RCA NOS 1960's (31.5ma)
12B4A Sylvania NOS 1960's (33ma)
2.7.25 (!!!!!) (Recommended Pair) 6SN7GT Tungsol parallel gray plates large "O" mica ears NOS 1953 (6.4/6.6ma and 6.4/6.8ma) (rare version) (Cary, Rogue)
5641=EY70 Sylvania NOS 1957 in white box (1 in stock)
5879 RCA triple mica "D" getter halo used/tests like new (1.7ma)
