(!!!!) (Best Single) 6X5GT RCA NOS 1953 (51/40 and 53/40)
(!!!!) (Best Value) 6X5GT RCA NOS 1953 (50/40 and 55/40)
(!!!!) (Recommended Single) 6X5GT RCA NOS 1953 (52/40 and 54/40)
(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) 80 RCA Victor NOS 1948 (56/40 and 58/40)