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R290

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ID = 36511
       
Country:
France
Brand:
Tube type:  Noise Diode 
Identical to R290 = K81A
First Source (s)
May.1953 : - - Manufacturers Literature

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 2 Volts / If 2.5 Ampere / Direct
Description

Noise diode identical to K81A (source : catalogue AZDAM 1957)

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
22 x 60 x mm / 0.87 x 2.36 x inch
Information source - - Manufacturers Literature   

r290_culotr.png R290: Radiotechnique
Patrice Zeissloff


Just Qvigstad
r290_doc_page1.png
R290: Radiotechnique
Patrice Zeissloff

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Collection of

 
d_valvo_k81a_001.jpg

 

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