(!!!!) (Best Pair) JAN-CHY-0D3 Hytron NOS 1944 (argon)
(!!) (Recommended Pair) 0D3 RCA NOS 1963-1967 (argon)
(!) (1 PAIR) 0D3 Tungsol used/test like new 1950's (argon)
(!) (Recommended Pair) 0D3 RCA NOS 1963-1966
(!) 0D3 Hytron NOS 1951 (argon)
0D3 CBS NOS 1950 era (argon)
0D3 Hytron like new 1949 (argon)
0D3 RCA low hours/tests like new 1975 slightly tilted glass - rattle inside base (argon)
0D3 RCA tests like new 1940's (argon)
0D3 Tungsol NOS 1950's slightly tilted glass (argon)
0D3A Sylvania branded RCA NOS 1970's (1 pair) (argon)
0D3A Sylvania NOS 1970's (1 pair)
JAN-CHY-0D3 Hytron NOS 1940's (argon)
JAN-CRC-0D3 RCA used/tests strong 1940's (argon)
VR-150=VT-139=0D3 Sylvania NOS 1940's (argon)
