(!!!!) (BEST PAIR) 6973 RCA gray plate NOS 1960's - 1970's same build (48.5ma and 50.6ma)
(!!!!) (Recommended Pair) 6973 RCA NOS and used/good same build 1960's (40ma and 41ma)
(!!!!) 6973 RCA gray plate NOS 1975 (43ma)
(!!!) (Best Pair) 6973 RCA NOS same build 1960-1970 (40ma and 40ma)
(SINGLE) 2050 GE NOS (6 in stock) (BEST PRICE)
(SINGLE) 2050A GE coin-base NOS (6 in stock) (BEST PRICE)
2050 GE burgundy base NOS 1952
2050 RCA NOS 1968
2050A GE coin-base NOS 1970's (4 in stock)
2050A GE NOS 1963 (single)
2050A GE rebranded Amperex NOS (single)
2050W Chatham by Tungsol NOS 1959 (2 in stock)
6973 RCA black plate used/good 1950's (34ma)
6973 RCA branded Raytheon black plate NOS 1960 era (51ma)
6973 RCA gray plate used/good 1970 era (56.5ma)
6973 Sylvania gray plate NOS 1970's (61ma)
6CM6 Raytheon Japan NOS (48.5ma)
6CM6 US Brands used/good (7 in stock)