(!!!) (Recommended Single) JTL-6X4W Tungsol NOS 1955 curved "D" getter (49/40 and 52/40)
(!!!) (Set of 77) 6X4 US Brands NOS original boxes 1950-1980 era (set fo 77)
(!!!) (Single 1955) JG-12AY7 GE "D" getter like new 1955 (3.3/2.7ma) (High Gm)
(!!!) (Single 1956) 12AY7 GE "D" getter like new 1956 (3.1/2.8ma)
(!!!) (Single) 6X4 Tungsol NOS 1960's (60/40 and 66/40)
(!!!) (Single) CK-5687 Raytheon black plates "O" getter like new 1960 (30/33.5ma)
(!!!) (Slightly Microphonic Single) 5670=2C51 Tungsol black plates "D" getter NOS 1958 (9.6/10.2ma)
(!!!) (slightly microphonic) 5687 Tungsol black plates "U" getter halo branded GE NOS 1950's (36/40ma)
(!!!) 12AY7 GE NOS rebranded Raytheon 1960's (2.8/3.4ma)
(!!!) 231=31 US Made Balloon NOS 1920's (14.2ma)
(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) 35W4 RCA NOS 1970 era (52/40)
(!!!) 5881 Tungsol used/good 1957 (58ma)
(!!!) 6336 Chatham metal plates used 1954 (59/74ma)
(!!!) 6336 Chatham metal plates used 1957 (57/53ma)
(!!!) 6V6GT Tungsol black plate coated glass used/good 1940's hairline crack in base (44ma)
(!!!) JAN-CTL-6AR6 Tungsol NOS 1951 gray oval plates (88ma)
(!!!) USN-CRC-1629=VT-138 RCA NOS 1940 (bright eye) (oldest single)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!!) (Best Pair #2) 6AW8A GE NOS 1976 (3.3/3.6ma and 25.8/27.2ma) 1-3% matched (Shindo)
