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ID = 19889
United States of America (USA)
Brand: Cunningham Inc., E.T.; Harrison (NJ)
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes   Power/Output 
Identical to C-302 = C302
First year Dec.1920 Saga of the Vacuum Tube, Tyne 164

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament Vf 7.5 Volts / If 2.35 Ampere / Direct / Battery =

This is just an other way to write the name of the tube C302 - see there.

Text in other languages (may differ)
C-302: own collection
Peter den Boer

C-302: KoBi
Konrad Birkner † 12.08.2014

from Just Qvigstad

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