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(!!) (BEST PAIR 1950's) 0C3 CBS NOS 1955 (argon)
(!!) (Pair) 0C3 GE NOS 1976 (argon)
(!!) (SINGLE) 5R4GYB RCA branded Westinghouse NOS 1962 (50/40 and 52/40)
(!!) (SINGLE) 5R4GYB RCA NOS 1963 large getter (48/40 and 50/40)
(!!) 0C3 Sylvania branded GE NOS 1972-1976 (1 Pair)
(!!) 5R4GYB RCA like new 1963 a few oxide filament flakes inside tube slightly tilted glass (50/40 and 52/40)
(!!) 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40)
(!!) 5R4GYB RCA used/very good 1961 (48/40 and 51/40)
(!) (1 PAIR) 0C3 GE branded 0C3A NOS 1976 (argon)
(!) (BEST PAIR) 0C3 RCA NOS - 1 tube branded GE 1959 and 1962 (1 pair) (argon)
(!) (Best Value Pair) 0A3 CBS NOS 1960 era same build (neon)
(!) 0C3=VR-105 GE tests like new 1969 argon
(READ REVIEW) 0D3 RCA NOS 1940's in white boxes (argon)
0A3 GE NOS 1963 slightly tilted glass (neon)
0A3 RCA branded Marshall Electronics used/good 1950's (neon)
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)
