170
0 Tubes in archive
BrandWestern Electric
ClassVacuum Tube
FilamentV @ mA
Construction
Primary TypeVacuum Tube
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Cathode Current170 mA
Audio Performance
Application Notes
The recurring value 170 in the document margins indicates the tube type identifier common in Western Electric technical documentation.
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