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(!!!) (Good Value Single) 6SN7GTB Tungsol tall bottle used/good 1960 era (7.5/7.5ma) 1% section balance
(!!!) (Good Value Single) ECC81=12AT7 Mullard old logo made in Hyperlec Brive France used/good (8.4/9.8ma)
(!!!) (Good Value) 6021=CV3986 Mullard UK Mitcham plant NOS 1971 (4.2/4.4ma and 4.2/4.4ma)
(!!!) (Good Value) E81CC=12AT7 Haltron England NOS around 1960 (8.4/10.2ma)
(!!!) (Good Value) JG-5814A GE triple mica "U" getter halo like new 1955 in white box (8.8/9.6ma)
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.6/1.6/1.6/1.5ma) 1-2% matched
(!!!) (Good Value Pair) 26 Super Silvertone ST-14 engraved base used/good 1930's (4.3ma and 4.8ma)
(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 "D" getter halo (8.4/9.8ma) (similar to RCA black plates)
(!!!) (Recommended Pair) 12SL7GT RCA black plates NOS 1974 (2.1/2.2ma and 2.3/2.4ma) (same Gm)
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.5ma and 1.5ma)
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.8ma and 1.8ma)
(!!!) (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) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!) (Recommended Pair) 311B Amperex made in Russia NOS 1977 (37.2ma and 38.5ma) (Highest mA and Gm)
(!!!) (Recommended Pair) 311B WE used/good 1960-1961 partially faded getters (24.5ma and 26.5ma)
(!!!) (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)
(!!!) (Recommended Pair) 6BL7GTA GE and GE branded Admiral 1960's (38/40ma and 35/45ma)
(!!!) (Recommended Pair) 6FQ7 Sylvania NOS 1970's same build (6.4/6.8ma and 6.4/6.4ma)
