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(!) (Best Single) 7247=12DW7 Amperex Globe Logo by Matsushita Japan NOS 1967 similar sound to Mullard (1.5ma and 11.6ma) (High mA and Gm)
7247 GE NOS tall gray ribbed plates 1970's (1.1ma and 9.4ma)
7258 US Brands NOS Triode / Pentode (sold out)
7308 Sylvania NOS 1976 mis-matchded sections (9.2/19ma)
7370 GE NOS (10 in stock)
7543 US Brands NOS (0 in stock)
7554 GE NOS
7586 Philips Nuvistor NOS (1 in stock)
7586 RCA Nuvistor NOS 1972 (84/60)
7586 Siemens West Germany nuvistor NOS 1960's faded printing (84/60)
7586 Sylvania Nuvistor NOS (1 in stock)
7586 Sylvania Nuvistor NOS (75/60)
7587 RCA Kuhl-Tube cryo-treated NOS 1950's original boxes (8 in stock)
7587 RCA NOS 1950's original boxes (18 in stock)
7587 US Brands NOS (10 in stock)
75=VT-75 RCA Dual-Diode Triode NOS 1948 (36/19)
76 Aristocrat by Sylvania 1940's used/good (3.8ma)
76 Croydon by Sylvania engraved base used 1930's (4.5ma) (Gm is 60%)
76 Delco by RCA 1940's used/good (4.1ma)
7643 Valvo branded Amperex PQ Germany "PINCHED WAIST" NOS 1960 (6BL8 sub)