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(!) (#2 404A Pair) 404A Western Electric used/tests like new 1965-1970 (23.0ma and 23.8ma)

(!) (#2 404A Pair) 404A Western Electric used/tests like new 1965-1970 (23.0ma and 23.8ma)

$ 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

 

 

 

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