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R120B

Information - Help 
ID = 3834
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Full-Wave Rectifier inert gas filled   Power-supply 
Identical to R120B

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Direct / Parallel, (AC/DC)
 
roehre_r120b.jpg
R120B: Eigenes Bild
Anonymous 971 Collector

 
17.png
R120B: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 1= 1924??

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


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