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1 tube) 291A Western Electric NOS 1972 (45/25)
Tested on TV-7D/U
Pentagrid converter with cathode
10V Filament
Vplate=180V
Vgrid1=-7.5V
Vgrid2=180V
Vgrid3=75V
Vgrid4=-3V
Vgrid5=75V
Mu=275
Gm=690
Rp=400Kohms
Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
US$40
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