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(!) 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)
(!) 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)
$ 69.99
1 pair) 448A Western Electric smooth top used/good 1965-1966 - reboxed
1 tube) 19.2ma Gm=25,000
1 tube) 20.8ma Gm=23,000
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 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/448ap10_c9cd30f4-bd37-497b-a7de-a9dff27066d3.jpg?v=1571439096){kind=link}
 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex) "Pin It")