(!) (1 PAIR) 0D3 Tungsol used/test like new 1950's (argon)
(!) (BEST PAIR) 0C3 RCA NOS - 1 tube branded GE 1959 and 1962 (1 pair) (argon)
(!) (BEST PRICE) 0B2 RCA used/good 1960's - 1970's (4 tubes for $9.99)
(!) (PAIR) 0B2 GE France NOS 1970 (argon gas) (1 pair)
(!) (Recommended Pair) 0B2 GE Italy NOS 1977 (argon gas)
(!) (Recommended Pair) 0B2 RCA NOS 1970 (neon gas)
(!) (Recommended Pair) 0D3 RCA NOS 1963-1966
(!) (Recommended Pair) 5651 GE USA made for GE Canada NOS (1 pair)
(!) (Recommended Pair) 5651 Sylvania NOS 1960's (1 pair)
(!) (Recommended Pair) 5651 Sylvania NOS 1970 era (1 pair)
(!) (Recommended Pair) 5651A RCA branded GE NOS 1976 (1 pair) (neon)
(!) (Recommended Pair) 5651WA Sylvania JAN 1980-1982 Diode Voltage Reference (1 pair)
(!) 0B2=108C1 Valvo Germany like new in white boxes 1960 era (neon gas)
(!) 0C3 RCA like new 1952 reboxed (argon)
(!) 0C3 RCA used/test like new 1951 (1 pair)
(!) 0D3 Hytron NOS 1951 (argon)
(!) 108C1=0B2 Siemens Germany NOS 1960-1961 (argon gas)
(!) 108C1=0B2 Siemens made in France 1970 (argon gas)