0A3 RCA NOS 1971 (neon)
0A3 RCA used/good (neon)
0A3 US Brands used/good (4 in stock)
0A3 Westinghouse NOS 1940's - 1950's small crack in base (neon)
0C3 GE NOS 1946 (argon)
0C3 RCA NOS 1951 argon
0C3 RCA used/test like new 1951 (1 Pair)
0C3=VR105 RCA used/good 1940's
0C3=VR105 RCA used/good 1948 (argon)
0D3 Hytron branded Electronic Enterprises NOS 1950 era (argon)
0D3 RCA like new 1940's (argon)
0D3 RCA like new 1946 (argon)
0D3 RCA NOS 1946 (argon)
0D3 RCA used/good 1950 (argon)
0D3 RCA used/good 1954 (argon)
5R4GYB RCA brown base like new 1970's part of glass partially melted into bottom mica (48/40 and 49/40)
5R4GYB RCA brown base NOS 1970's part of glass melted into bottom mica (50/40 and 53/40)
5R4GYB RCA used/strong 1970 (52/40 and 54/40)
5R4GYB RCA used/very good 1964 (51/40 and 54/40)
