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6BJ7 US Brands NOS (4 in stock)
6BQ5 GE NOS 1960's (40ma)
6BQ5 GE NOS 1973 (71ma) (recommended for FIXED-BIAS amp only due to high current)
6BQ5 GE NOS 1977 (58.5ma)
6BQ5 GE Zenith NOS 1976 (46.2ma)
6BQ5 Lindal Japan like new 1970's (50ma)
6BQ5 Lindal Japan NOS 1970's (42ma)
6BQ5 Lindal Japan NOS 1978 (59.5ma)
6BX7GT CBS NOS 1959 (53ma/73ma)
6C4WA Sylvania NOS 1965 and 1971 (read review)
6CA4 GE branded Tungsol like new 1960's (55/40 and 56/40)
6CG7 Sylvania Emerson used/good chrome electrostatic shield between plates "U" getter 1957 (6.2/6.8ma)
6CM3 GE NOS 1960's (1 pair)
6CS7 Raytheon by Toshiba Japan gray plates NOS 1970 era (21.5/10.2ma)
6CW4 GE like new 1980 (120/60)
6CW4 GE NOS 1976 (116/60)
6CW4 RCA NOS 1970 era (1 in stock)
6CW4 Tungsol NOS (1 in stock)
6CY5 NOS (40 in stock)
6CZ5 GE Canada black plate NOS 1969 (49ma) (Same build as RCA)
