6AX5GT RCA branded Admiral NOS 1960 (52/40 and 55/40)
6AX5GT RCA branded Raytheon NOS 1960 era (50/40 and 52/40)
6AX5GT RCA branded Zenith NOS 1960's (52/40 and 54/40)
6AX5GT RCA NOS 1963 (52/40 and 58/40)
6AX5GT RCA used/good 1950's (54/40 and 64/40)
6AX5GT RCA used/good 1962 (51/40 and 52/40)
