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6B4G Raytheon NOS 1950 era (94ma)
6B4G Sylvania branded RCA NOS 1940 era (100ma)
6B4G Sylvania rebranded Delco NOS separate plates 1952 (81ma)
6B4G Sylvania rebranded RCA used/good 1953 (77.5ma)
6B4G Zenith by Sylvania NOS plates connected 1940's (123ma)
6BD5GT US Brands NOS (5 in stock)
6BG6G Ken Rad tests like new 1951 (85ma)
6BG6G RCA low hours/like new 1953 (67.2ma)
6BG6G RCA NOS 1950's (66ma)
6BG6G RCA NOS 1963 (63ma)
6BG6GA RCA Coronado NOS 1950's (71ma)
6BG6GA Sylvania NOS 1966 (95ma)
6BK5 US Brands NOS (20 in stock)
6BL6 NOS (6 in stock)
6BN11 US Brands NOS (9 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)
