(!!!) (Recommended Pair) 713A Western Electric by Tungsol NOS 1942-1943 (6.6ma and 6.9ma) (713A = 717A with black base)
$59.99
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1 pair) 713A Western Electric by Tungsol NOS 1942-19431 tube) 6.6ma Gm=33001 tube) 6.9ma Gm=3100 glass bulges out on one side / imperfect glass bulb / odd-shape - 713A=717A with black bakelite base - pins cleaned on both tubes Vplate=100V Vscreen=100V Vgrid=-1V Good Ma 5.5-8ma Good Gm 3000-4000 - Pentode most made by Tungsol branded Tungsol or Western Electric by Tungsol- Yamamoto AO8 amp
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