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Valvo-Ökonom

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ID = 2587
       
Country:
Germany
Brand: Radioröhrenfabrik GmbH (RRF) (CHF Müller // RRF // Valvo); Hamburg
Tube type:  Triode, vacuum 
Identical to Valvo-Ökonom

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / Direct / Battery =
Description

Siehe auch unter Oeconom

Oeconom A
Oeconom H
Oeconom N
Oeconom W
Oeconom W4

 
 
konom_valvo_01.jpg
Valvo-Ökonom: Collection TL
Thomas Lebeth

 
triodedirektb4_16.png
Valvo-Ökonom: Collection TL
Thomas Lebeth

 

from Just Qvigstad

Usage in Models 1= 1926

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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