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534AX Raytheon NOS (4 in stock)
53HK7 US Brands NOS (8 in stock)
5440 Burroughs Nixie tube used (16 pins) (0 in stock)
5441 National Nixie tube used 1977 (16 pins) (0 in stock)
5441A Burroughs Nixie tube used 1969 (16 pins) (sold out)
5448 Burroughs Nixie readout tube used (16 pins) (1 in stock)
547DX Raytheon NOS (3 in stock)
55 Philco 1940's tests like new (52/24)
55 Philco used/good 1940's (52/24)
55 US Brands NOS (0 in stock)
551 Arcturus Blue Balloon used/very good 1930's (43/26)
5514 Power Triode
5516 CBS NOS (0 in stock)
5517 Raytheon NOS 1950 (single)
5541=6R8 Delco Radio NOS (4 in stock)
5557=FG-17 Mercury Triode Thyratron
5558 GE NOS
5581 RCA Photocell for sound NOS 1959 (single)
