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4889

Information - Help 
ID = 15471
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes   VHF 
Identical to 4889 = NT58 = CV1288

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Ex) 2 Top contacts
Filament Vf 7.5 Volts / If 3.2 Ampere / Direct
Description British Admiralty store reference for CV1288 / NT58 VHF transmitting triode. 
Literature Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
 
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4889: Manufacturer's Literature
Emilio Ciardiello

 

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