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(!!!!!) (Best 448A Pair) 448A Western Electric smooth top used/test like new 1965-1968 (42.5ma and 45.5ma) (Matched on Amplitrex)
(!!!!!) (Best 448A Pair) 448A Western Electric smooth top used/test like new 1965-1968 (42.5ma and 45.5ma) (Matched on Amplitrex)
$ 119.99
1 pair) 448A Western Electric smooth top used/test like new 1965-1968 - reboxed
1 tube) 45.5ma Gm=29,700
1 tube) 42.5ma Gm=30,500
Amplitrex Test Data:
Vplate=135V
Vscreen=135V
Vgrid=-2
Good Ma range 20-30ma
Good Gm = 23,000 - 27,000
DIY pentode
See more: vacuum tube
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 (Best 448A Pair) 448A Western Electric smooth top used/test like new 1965-1968 (42.5ma and 45.5ma) (Matched on Amplitrex) "Pin It")