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329A Western Electric NOS 1952-1957 (1 Pair: 30ma and 30.5ma)

329A Western Electric NOS 1952-1957 (1 Pair: 30ma and 30.5ma)

$ 164.88

1 pair) 329A Western Electric "D" getter halo NOS 1952 and 1957 large getters, original boxes

1 tube) 30ma Gm=3000 (5739=1957)

1 tube) 30.5ma Gm=3000 (213=1952)

 

Matched on Amplitrex

Vplate=180V

Vscreen=135V

Vgrid=-15V

Good Ma range 29-30ma

Good Gm range 2800-2900 

 

General Information

(329A=311A with a 7.5V filament)

(329A=311A with a 7.5V filament)

 

 

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