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(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)
(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)
$ 109.99
1 pair) 448A Western Electric smooth top used/good 1963-1970 - reboxed
1 tube) 35.0ma Gm=26,000
1 tube) 36.5ma Gm=28,700
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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 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/448ap1.jpg?v=1571439045){kind=link}
 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex) "Pin It")