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(!!!) (Best Pair #2) 448A Western Electric tipped top used/test like new 1965 (34ma and 35ma)
(!!!) (Best Pair #2) 448A Western Electric tipped top used/test like new 1965 (34ma and 35ma)
$ 139.99
1 pair) 448A WE "tipped top" used/tests like new D getter halo 1965 reboxed
1 tube) 35ma Gm=26,000
1 tube) 34ma Gm=28,000 slightly taller bottle
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 Pair #2) 448A Western Electric tipped top used/test like new 1965 (34ma and 35ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_f495ee7d-ccb8-4a7f-a29f-fd4286d0decc.jpg?v=1761594204){kind=link}
 (Best Pair #2) 448A Western Electric tipped top used/test like new 1965 (34ma and 35ma) "Pin It")