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(!!) (1 set of 10 tubes) 404A Western Electric used/good 1963-1967 (set of 10)
(!!) (1 set of 10 tubes) 404A Western Electric used/good 1963-1967 (set of 10)
$ 219.99
1 set of 10 tubes) 404A Western Electric used/good 1963-1967
1 tube) 25.0ma Gm=11,000 (1965)
1 tube) 17.2ma Gm=11,800 (1967)
1 tube) 20.6ma Gm=12,700 (1964)
1 tube) 23ma Gm=15,500 (1963)
1 tube) 19.2ma Gm=12,400 (1965)
1 tube) 20.5ma Gm=14,000 (1967)
1 tube) 20ma Gm=14,000 (1963)
1 tube) 19.4ma Gm=11,000 (1963)
1 tube) 20ma Gm=12,400 (1966)
1 tube) 18ma Gm=11,800 (1967)
Tested on Amplitrex
Vplate=150V
Vscreen=150V
Vgrid=-1.5V
Good used Ma range 12-16ma
Good used Gm range 10,500 - 12,000
See more: vacuum tube
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 (1 set of 10 tubes) 404A Western Electric used/good 1963-1967 (set of 10) "Pin It")