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RM

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ID = 12934
       
Country:
France
Brand: Métal; France (tubes)
Tube type:  Dual-Grid Tetrode   Frequency converter 
Identical to RM

Base French Bigrille 5 pin (D) (Codex=Eu)
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Description R.M. = "Radiomodulateur" (selbstschwingende Mischstufe)
Auch "Modulateur-Bigrille" genannt. 
Information source -- Collector info (Sammler)   

rm1.png
RM: own collection
Peter den Boer

More ...
Usage in Models 2= 1924? ; 1= 1926 ; 1= 1927? ; 1= 1928

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

 
rm_rm1.jpg

RM
 

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