(!) (#2 404A Pair) 404A Western Electric used/tests like new 1965-1970 (23.0ma and 23.8ma)
By Tube World
$ 59.99
1 matched pair) 404A Western Electric used/tests like new 1965-1970
1 tube) 23.0ma Gm=13,700
1 tube) 23.8ma Gm=13,400
Tested on Amplitrex
Vplate=150V
Vscreen=150V
Vgrid=-1.5V
Good like new Ma range 18-20ma
Good used Gm range 12,000 - 13,000
See more: vacuum tube
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 (#2 404A Pair) 404A Western Electric used/tests like new 1965-1970 (23.0ma and 23.8ma) "Pin It")