(!!!) (Best Pair #4) 448A Western Electric tipped top used/tests like new 1965 (26.4ma and 26.8ma)
$109.99
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1 pair) 448A Western Electric "tipped top" used/tests like new D getter halo 1965 in white boxes 1 tube) 26.4ma Gm=26,900 1 tube) 26.8ma Gm=25,500 Amplitrex Test Data: Vplate=135V Vscreen=135V Vgrid=-2.5V Good Ma range 18-25ma Good Gm = 25,000 DIY pentode
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