(!!) (SINGLE) 5R4GY RCA brown base used/tests like new 1949 (50/40 and 51/40)
(!) (BEST VALUE PAIR) 5R4GA GE Amperex NOS 1976 - vertical scratches on bases (50-53/40 and 50-50/40)
5R4GA GE NOS 1977 (50/40 and 52/40)