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1625=VT-136 RCA NOS 1954 (84/40)
1635 RCA coated glass NOS 1950-1953 (2 in stock)
1635 RCA NOS (6 in stock)
1640 RCA Phototube NOS (2 in stock)
171A RCA Radiotron Balloon used/good 1932 (20ma)
1A7G Philco used/good 1940's (read review)
1A7GT Sylvania NOS 1946 (95/60)
1C21 NOS
1C35
1LB4 Sylvania chrome top NOS 1956 (118/60)
1N5GT Hytron NOS
1N5GT Philco NOS
1N5GT RCA NOS (3 in stock)
1P28B RCA Photocell NOS (4 in stock)
1T6 RCA NOS (12 in stock)
1U5 Brimar UK 1959 rebranded Sylvania NOS 1970 era (117/60)
1U5 Sylvania NOS (107/60)
1U5 Sylvania NOS (116/60)
1U5 US Brands NOS (10 in stock)
1U5 US Brands used/good (2 in stock)
