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5U4GB RCA used/good 1950's slightly tilted glass (55/40 and 56/40)
5U4GB Sylvania Canada NOS 1960's (61/40 and 64/40) (similar build to RCA)
5U4GB Sylvania used/tests like new 1960's (54/40 and 54/40)
5U4GB Tungsol used/good 1960 (51/40 and 60/40)
5V3 GE branded ITT NOS 1960's (52/40 and 54/40)
5V3 GE used/tests like new 1959 (58/40 and 60/40)
5V3 Raytheon branded RAD-TEL NOS 1961 (53/40 and 54/40)
5V3A RCA NOS 1962 (47/40 and 48/40)
5V6GT CBS NOS 1955 (40.6ma)
5V6GT CBS NOS 1955 (48.5ma)
5V6GT GE by Sylvania NOS 1962 (38.5ma)
5V6GT GE NOS 1961 (47ma)
5V6GT Philco by GE NOS 1963 (52.6ma)
5X8 NOS (50 in stock)
5Y3GT Sylvania used/good 1955 (46/40 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 RCA used/good 1948 (48/40 and 53/40)
5Y4G Sylvania NOS 1940's (56/40 and 60/40)
