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NL840

Information - Help 
ID = 77706
       
Country:
United States of America (USA)
Brand: National Electronics, Inc.; Geneva, IL
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to NL840

Base SPECIAL TUBEBASE in general
Filament No heater
Description

Ziffern 0...9

 
 
nl840_back.jpg
NL840: afC
Aldo Canepa

 
national_nl840_data.png
NL840: afC
Aldo Canepa



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