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71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)
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71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)
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71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)71A Raytheon 4 Pillar box plate used strong 1930's engraved base 24. 8ma Gm=1600 SINGLE TUBE, NOT A PAIR Tested on Amplitrex Vplate=180V Vgrid= 38V Good Ma = 20ma Good Gm = 1600 1700 (71A=5V @ . 25A Filament) Mu=3 Rplate=1. 82Kohms Rload=3Kohms
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71A Raytheon 4-Pillar box-plate used/strong 1930's engraved base
24.8ma
Gm=1600
SINGLE TUBE, NOT A PAIR
Tested on Amplitrex
Vplate=180V
Vgrid=-38V
Good Ma = 20ma
Good Gm = 1600-1700
(71A=5V @ .25A Filament)
Mu=3
Rplate=1.82Kohms
Rload=3Kohms
71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)
Item no
:
63502581080
US$ 39.99
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Min. order:
1piece
Shipping Estimate
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- USA
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
US$40
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