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CV739

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ID = 48707
       
Country:
United States of America (USA)
Brand: DuMont Labs, Allen B., Inc.
Tube type:  CRT (cathode ray tube, picture tube)   Indication 
Identical to CV739 = 2501A3
First Source (s)
Nov.1941 : Electron Tube Registration List

Base 7-Pin-Base-general, old, USA
Filament Vf 2.5 Volts / If 2.1 Ampere / Half indirect
Description 3" medium-persistance green fluorescent CRT intended for oscillographic applications. Electrostatic focus and deflection. 
Information source -- Original-techn. papers.   Electronics, Jan. 1942
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