(!) (Best Sylvania) 6K6GT Sylvania chrome top NOS 1956 (41.2ma)

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6K6GT Sylvania chrome top NOS 1956 41.2ma Gm=2900 Test settings: Vplate=285V Vscreen=285V Vgrid=-20V Good Ma range = 32-38ma Good Gm range = 2400-2600 Recommended for - Sparton Noc turne 1186 from 1936- Fire Stone Sir Chef S-7404-3 1939- Montgomery-Ward Airline Model 62-226- Supratek Cortese- Victoria- WE 106 preamp clone - Wards Airline Radio Show more