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448A Western Electric tipped top used/good 1965 same date codes (1 Pair: 26ma and 27.5ma) (Matched on Amplitrex)
448A Western Electric tipped top used/good 1965 same date codes (1 Pair: 26ma and 27.5ma) (Matched on Amplitrex)
By Tube World
$ 129.99
1 pair) 448A Western Electric tipped top used/good 1965 same date codes
1 tube) 27.5ma Gm=26,700
1 tube) 26.0ma Gm=26,500
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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