(!) (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma)
By Tube World
$ 44.99
1 matched pair) 404A Western Electric used/good
1 tube) 16.5ma Gm=13,800 (1963)
1 tube) 17.6ma Gm=14,400 (1969)
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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 (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_4875bf49-5d0a-4883-add7-1821670649dc.jpg?v=1679893930){kind=link}
 (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma) "Pin It")