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(!!) (Best Pair) 0D3 RCA NOS 1964-1965 (argon)
(!) (Best Pair) 0D3W Chatham by Tungsol NOS 1951 (high stability 0D3) (argon)
(!) (Pair) 0D3 RCA NOS 1975 (argon)
(PAIR) 0D3A Russian rebranded GE Holland NOS 1980 (1 pair)
(READ REVIEW) 0D3 RCA NOS 1940's in white boxes (argon)
0D3 GE low hours/like new 1960 (argon)
0D3 Hytron branded Electronic Enterprises NOS 1950 era (argon)
0D3 RCA NOS 1955
0D3 RCA used/good 1950 (argon)
0D3 RCA used/good 1954 (argon)
0D3 Sylvania NOS 1940's (argon)
0D3 Westinghouse NOS 1940's reprinted in 1975 (argon)
0D3A Sylvania branded RCA NOS 1970's (1 pair) (argon)
0D3W Chatham by Tungsol NOS 1953 (high stability 0D3)
USN-38250=0D3 RCA like new 1944 reboxed (argon)
