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526AX Raytheon NOS (5 in stock)
53 Arcturus engraved base used/tests like new 1930's (72/38 and 73/38)
53 NOS
53 US Brands NOS (2 in stock)
533AX Raytheon NOS (3 in stock)
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 Sylvania NOS (2 in stock)
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)
