5T4 GE NOS 1945 (54/40 and 56/40)
5T4 GE NOS 1945 (56/40 and 58/40)
5T4 GE NOS 1945 (57/40 and 65/40)
5T4 Raytheon NOS 1950's
5T4 RCA NOS 1940's (56/40 and 57/40)
