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7Y4 US Brands NOS (5 in stock) (rectifier)
7Y4 used/good (2 in stock)
7Z4 US Brands NOS (8 in stock)
7Z4 US Brands used/good (2 in stock)
(!!!) (Recommended Pair) 7N7 Sylvania NOS branded GE and RCA 1960-1965 (9.4/8.0ma and 8.0/8.4ma) (close Gm)
7B7 Sylvania NOS 1946 (98/60)
(!!) 7N7 Sylvania branded Philco used/good short bottle parallel gray plates 1948 (7.2/7.6ma)
(READ REVIEW) 7B4 US Brands NOS (2 in stock)
7C6 RCA NOS 1940's tarnished base (96/60)
7C6 RCA Victor like new 1948-1950 (23/15)
(!) 7F7 Sylvania rebranded GE parallel round gray plates used/good 1952-1953 (1.9/2.3ma)
7AU7 Raytheon by Hitachi Japan NOS (5 in stock)
(!) (Best Single) 7N7 Sylvania NOS 1960 era (10.8/11.2ma)
7R7 Tungsol NOS 1947-1948 (52/38)
7Q7 GE NOS 1950's (4 in stock)
7H7 Zenith by Sylvania used/good 1940's (105/60)
7H7 Sylvania branded Tungsol NOS (3 in stock)
7X7 Sylvania branded RCA NOS slightly tilted glass (98/60)
7H7 Sylvania branded RCA NOS (1 in stock)
7H7 Sylvania / Philco NOS (3 in stock)
