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6BS4 NOS
6BS8 RCA NOS 1966 (11.5/10ma)
6BS8 Tungsol NOS 1960 era (10.2/14ma)
6BU8 US Brands NOS (12 in stock)
6BV11 US Brands NOS (3 in stock)
6BV7 NOS (sold out)
6BV8 GE NOS (0 in stock)
6BW11 NOS (15 in stock)
6BW4 Sylvania black plates used/good 1954-1955
6BW7 International NOS
6BW8 NOS (8 in stock)
6BY6 US Brands NOS (40 in stock)
6BY8 US Brands NOS (12 in stock)
6BZ6 Tungsol D getter NOS 1950's (81/60)
6BZ6 Tungsol D getter NOS 1950's (90/60)
6BZ6 US Brands (15 in stock)
6BZ6 US Brands used/good (8 in stock)
6C4WA Sylvania NOS 1965 and 1971 (read review)
6C5 Ken Rad metal used/good 1940's (6.5ma)
6C5 Philco metal used/good 1952 (8.2ma)
