329A Western Electric NOS 1952-1957 (1 Pair: 30ma and 30.5ma)
By Tube World
$ 149.99
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)
See more: vacuum tube
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