(!!!) 76 RCA branded Raytheon NOS 1954 (5.1ma)
(!!!) 76 RCA NOS 1940's (4.5ma)
(!!!) 76 RCA NOS 1940's (5.4ma)
(!!!) 76 RCA NOS 1940's (6.0ma)
(!!!) 80 RCA Victor NOS 1948 (56/40 and 58/40)
(!!!) JAN-6B4G Raytheon NOS 1940's (83ma)
(!!!) USN-CRC-1629=VT-138 RCA NOS 1940 (bright eye) (oldest single)
(!!) (#1 37 Pair) 37 RCA like new 1940's (7.7ma and 7.8ma) 1% matched
(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)
(!!) (#1 37 Pair) 37 RCA NOS 1940's (8.5ma and 8.5ma) 1% matched
(!!) (#1 800 black plate single) 800=VT-64 RCA black plate like new 1940's (52ma, Gm=2430) (tested on Amplitrex)
(!!) (#2 800 gray plate) 800=VT-64 RCA gray plate NOS late 1940's (47.5ma, Gm=2150) (tested on Amplitrex)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!!) (Best 403B Single) 403B=5591=6AK5 Western Electric NOS "O" getter halo 1958 (8.2ma) (special quality)
(!!) (Best Pair) 2C26A National Union NOS 1940's (71/38 and 72/38)
(!!) (BEST PAIR) 6C8G National Union and Ken Rad NOS same build 1950 era (3.8/3.7ma and 3.9/3.5ma) (closely matched)
(!!) (Best Single) 46 RCA Radiotron / Cunningham Balloon NOS 1930's (61ma Gm=3000)
(!!) (Best Single) 47 RCA NOS 1949 (38.2ma Gm=2630)
(!!) (Best Single) JAN-CNU-805 National Union NOS 1940-1945 reboxed large getter
(!!) (Best Single) JW-6AK5 Western Electric NOS "D" getter 1953 (6.2ma)