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5719 Sylvania Gold Brand NOS 1952 (similar to 6AD4) (4 in stock)
5Y4G RCA used/good 1948 (48/40 and 53/40)
5Y4GA RCA NOS 1963 (54/40 and 57/40)
5Y4GA RCA NOS 1971 (54/40 and 60/40)
5Y4GA Sylvania branded Zenith NOS 1960's (54/40 and 57/40)
5Y4GA Sylvania NOS 1960's (53/40 and 58/40)
5Z3G RCA used/good 1956 (46/40 and 48/40)
5Z3G TRIAD by RCA used/tests like new 1940's (52/40 and 52/40)
6A8G Cunningham NOS 1948 (52/29)
6A8G Sylvania NOS 1951-1952 (44/29)
6AQ5A=6669 European NOS branded Siemens NOS 1975 (48.5ma)
6AR6 Raytheon black plate used/good 1952 (67ma)
6B4G Sylvania rebranded Delco NOS separate plates 1952 (81ma)
6B4G Sylvania rebranded RCA used/good 1953 (77.5ma)
6F6G National Union black plate NOS 1951 (40.5ma)
6F6GT GE NOS 1952 (32ma)
6K6GT GE NOS 1956 (36ma)
6K6GT Silvertone by Silvertone used/good 1956 hairline crack in base (38ma)
6V6GT GE Delco used/good crack in base 1952 (36ma)
7F8W Sylvania NOS rebranded United 1952 (42/25 and 44/25) (best 7F8W)
