(!!!) (Best Single) 8417 Sylvania NOS (121ma)
$139.99
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8417 Sylvania NOS 1970 era Iplate= 121ma Gm= 24,500 Tested on Amplitrex: Vplate=300V Vscreen=300V Vgrid=-12V Good Ma range 90-110ma Good Gm = 20-23,000 Recommended For: - UFO - Fisher SA-1000 - Dynaco - Quicksilver - Dynaco Mark VI introduced in 1976 - Gibson - Bogen - Harmon Kardon
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