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(!!!) (Good Value Single) 6L6GC RCA black plate NOS 1965 broken center guide pin (76.2ma)
(!!!) (Good Value) 12AX7 RCA "long gray plates" with "D" getter used/good 1950's faded printing (0.8/0.8mA and Gm=1500/1600) Gm like new
(!!!) (Good Value) 83 RCA low hours/tests like new 1940's (60/40 and 60/40) 1% section balance
(!!!) (PAIR 1940's) 6AC7 RCA used/good 1941-1942 (7.8/7.5ma)
(!!!) (Pair) 6AC7 RCA used/test like new 1948 - 1954 (11.6/12.5ma)
(!!!) (PAIR) 6AN8A RCA NOS 1972-1973 (14.4/12.4ma and 15.2/11.8ma)
(!!!) (Pair) 6FQ7 RCA clear top NOS "O" getter halo 1970's (6.6/6.0ma and 6.0/6.4ma) (close Gm)
(!!!) (PAIR) 6HF5 Sylvania NOS 1970's (96ma and 97ma)
(!!!) (Pair) CX-301A Cunningham Balloon used/good 1930-1935 (2.2ma and 2.5ma)
(!!!) (Pair) CX-326 Cunningham balloon used/good 1930 era (4.2ma and 4.5ma) same Gm
(!!!) (Pair) JAN-CRC-6AC7=VT-112 RCA 1941-1946 used/good (8.4/9.4ma)
(!!!) (PAIR) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.3ma and Gm=700 x 2 tubes)
(!!!) (Pair) UX-226 RCA Radiotron balloon used/good 1930 era (3.9ma and 3.6ma)
(!!!) (READ REVIEW) 5V4G RCA branded GE NOS 1958 (60/40 and 60/40)
(!!!) (Recommended Pair) 12A National Union NOS 1950 era different shape top mica (8.5ma and 8.1ma)
(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1971 (7.2/8.0ma and 7.6/6.6ma) (close Gm)
(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1974 (10.5/7.5ma and 10.8/8.2ma)
(!!!) (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma)
(!!!) (Recommended Pair) 12BZ7 RCA NOS 1964 and 1968 (1.8/1.8ma and 1.8/1.9ma)
(!!!) (Recommended Pair) 12SL7GT RCA black plates NOS 1974 (2.1/2.2ma and 2.3/2.4ma) (same Gm)
