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4BQ7A Raytheon Japan NOS (6 in stock)
4BQ7A Raytheon NOS (5 in stock)
4C35 Kuthe Labs made for Marconi 1951 low hours/like new
4C35 Kuthe Labs made for Marconi NOS 1951 (1 in stock)
4C35 Sylvania Hydrogen Thyratron NOS (1 in stock)
4CX250B=7203 Amperex used in Eimac box as-is
4CX250B=7203 RCA open box 1971
4CX250K=8245 Eimac like new 1963 was hermetically sealed (similar to 8172)
4CX250K=8245 Eimac NOS 1960's hermetically sealed (6 in stock) (similar to 8172)
4D22 Raytheon display tube
4E27 Gammatron used 1940's good filament
4E27 Lewis and Kaufamn NOS original boxes 1950's (3 in stock)
4E27 RCA used 1950 good filament
4G1000 Half-Wave Rectifier like new
4KR8
4RHH2=4BQ7A Raytheon Japan NOS (0 in stock)
4X150A=RCA NOS 1970 sold as-is
501AX Raytheon NOS
5025 Numerical Display tube
502A RCA NOS (3 in stock)
