3Q5GT=VT-221 Tungsol used/tests like new 1940's (105/60)
50A1=D5TF30 Hytron Ballast NOS (0 in stock)
5U4G RCA used/good 1953 a few oxide flakes inside tube (50/40 and 52/40)
5V3A RCA NOS 1962 (47/40 and 48/40)
5Y3G Super Silvertone used/good 1940's (50/40 and 51/40)
5Y4G GE NOS 1949 (48/40 and 51/40)
5Y4G National Union NOS 1950 era (51/40 and 58/40)
5Y4G Philco by Sylvania NOS 1943 (54/40 and 57/40)
5Y4G Philco by Sylvania NOS 1950 (53/40 and 56/40)
5Y4G Philco by Sylvania NOS 1950 (54/40 and 58/40)
5Y4G RCA used/good 1948 (48/40 and 53/40)
5Y4G Sylvania NOS 1940's (56/40 and 60/40)
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)
6A8 GE metal can NOS 1959 (95/60)
6A8 GM Genuine Parts metal can used/tests like new 1940's (52/29)
6BN8 Realistic Lifetime by Toshiba Japan NOS 1970's (103/60)
6BN8 Sylvania branded CBS "U" getter NOS 1957 (100/60)
