(!!) (Recommended Pair) 0D3 RCA NOS 1963 (argon)
(!!) JAN-0D3 RCA NOS 1973 (1 Pair) (argon)
(!) (#1 0D3 Pair) 0D3 RCA NOS 1946
(!) (PAIR) 0D3 Tungsol like new 1950 era (argon)
0D3 RCA like new 1962 (argon)
0D3 RCA low hours/tests like new 1975 slightly tilted glass - rattle inside base (argon)
0D3 RCA used/tests strong 1940's
0D3A Sylvania branded RCA NOS 1970's (1 pair) (argon)
0D3A
