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41 Triad engraved base used/strong 1930's (70/40)
41 US Brands used/good (40 in stock)
415A Western Electric NOS 1960 (1 in stock)
416B=6280 WE NOS
416C Western Electric
420A WE NOS "D" getter 1962 (1.9/2.3ma)
420A WE NOS "D" getter 1970 (1.4/1.8ma)
437A Western Electric (sold out)
(!!!) (Best Pair #2) 448A Western Electric "tipped top" used/tests like new D getter halo 1965-1966 reboxed (30ma and 31.8ma) (close Gm matching)
(!!) (Recommended Pair) 448A Western Electric tipped top used/good 1965 same date codes (26ma and 27.5ma) (close Gm matching)
485 National Union used/good 1940's (6.2ma)
485 Sparton engraved base used/good 1936 (5.5ma)
485 Sylvania branded Philco NOS 1940's (6.0ma)
485 Sylvania engraved base used/good 1934 (8.3ma)
485 Sylvania used/good 1930's no printing (7.9ma)
4BC5 NOS (20 in stock)
4BQ7A Raytheon Japan NOS (6 in stock)
4KR8
4RHH2=4BQ7A Raytheon Japan NOS (0 in stock)
(!!) 6EW7 GE PHILCO BIG BOTTLE black plates NOS 1964 (4.8/62ma)