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(!!!!) (Best Single) JAN-CHS-6SL7WGT Sylvania brown base round black plates "D" getter NOS 1959 (2.6/2.6ma) 1% section balance (Highest mA and Gm)
(!!!) (Recommended Single) 5691 RCA Red Base branded Westinghouse black plates used/good 1960 (1.8/2.1ma)
(!!!) (BEST PAIR) 6SL7GT GE NOS 1957 same date codes (2.1/2.1ma and 2.1/2.2ma) (Close Gm)
