(!!!!) (Best Pair) 6F6G Marconi Spain NOS 1949 (43.6ma and 44.0ma)
$149.99
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1 matched pair) 6F6G Marconi Spain NOS 1949 1 tube) 43.6ma Gm=2900 - slightly taller bottle 1 tube) 44.0ma Gm=2860 Test settings: Vplate=285V Vscreen=285V Vgrid=-20V Good Ma range = 32-38ma Good Gm range = 2400-2600 Recommended for - Sparton Nocturne 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
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