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6X9=ECF200 NOS
6Y10 US Brands NOS (2 in stock)
6Y5 RCA NOS with metal shield soldered around tube (74-73/50)
6Y6G Arcturus by Tungsol coated glass used/good/70% 1940's (43ma) tested on amplitrex
6Y6G GE 1943 used/good black plate, double filaments, crack in base (56ma) tested on amplitrex
6Y6G GE used/good/75% 1958 (46ma) tested on amplitrex (high Gm)
6Y6G National Union coated glass used/good/75% 1952 (46ma) tested on amplitrex
6Y6G RCA clear glass gray plate NOS 1959 (52ma)
6Y6G Sylvania rebranded Raytheon coated glass used 1953 (45ma) tested on amplitrex
6Y6G Westinghouse coated glass NOS 1940's (50ma) (tested on amplitrex)
6Y6GT RCA NOS 1964 (66ma)
6Y7G US Brands NOS (12 in stock) ($2.99 special price)
6Y9=EFL200 GE NOS
6Z10=6J10 US Brands (8 in stock)
6Z5 Majestic NOS
6Z7G US Brands NOS (4 in stock)
6Z7G used
6ZY5G Coronado/Gamble Stores licensed by RCA NOS (3 in stock)
6ZY5G Philco NOS 1940's (56/40 and 62/40)
6ZY5G RCA NOS 1945 (57/40 and 62/40)
