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3DG4 RCA NOS original boxes (2 in stock) (full-wave rectifier)
3DG4 RCA NOS slightly tilted glass (82/60 and 82/60)
3DS3 GE NOS (4 in stock)
3E29=829B Ken Rad NOS 1940's (1 tube only - no pairs)
3KT6 NOS
3LF4 Sylvania used/good (82/60)
3Q4 US Brands NOS (8 in stock)
3Q5GT Ken Rad NOS 1940's (1 in stock)
3Q5GT Philco used/tests like new 1940's (96/60)
3Q5GT=VT-221 Ken Rad used/tests like new 1940's (106/60)
3Q5GT=VT-221 Tungsol used/tests like new 1940's (105/60)
3V4 GE Motorola used/strong 1960 era (92/60)
4-125A=4D21 Eimac used sold as-is good filament
4-125A=GL-4D21 GE NOS original box 1960 sold as-is
4-250A=5D22 RCA 1962 used original box sold as-is 1962 (good filament)
4-400A=8438 Eimac
4-65A=8165
40 NOS
401A Western Electric
40KG6A=PL519 JAPAN branded RCA tall bottle clear top NOS (1 in stock)
