1 pair) 329A Western Electric “”D”” getter halo NOS 1956 large getters, original boxes

1 tube) 34ma Gm=3100 (613=1956)

1 tube) 33ma Gm=3100 (5626=1956)

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)

General Information

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