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R20N

Information - Help 
ID = 18236
       
Country:
France
Brand: Celsior (tubes), Radio-Celsior; Paris
Tube type:  Ballast Tube (neither FeH or Urdox)   Power-supply 
Identical to R20N
Similar Tubes
Other base:
  E210N

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ux)
Filament If 0.2 Ampere / Specified current AC/DC ~ = (Series working)
Description Ballast (vacuum resistor) for 0,2A tubes (CK1, CBL1…) main voltage 110V 130V 220V 240V with over voltage protection for dial lamps.

Output :

2 or 3 dial lamps 6V 0,1A

Radio tubes heater 1x30V 1x24V 3x13V

Plate / anode voltage 110V

 
Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1948/49   

r20ncelsiorapplicationdocs.png
R20N: Radio-Plans
Patrice Zeissloff

r20n_sock.png R20N: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

More ...

Just Qvigstad
r40ncelsiorsource.png
R20N: Radio-Plans
Patrice Zeissloff

Usage in Models 1= 1939?? ; 1= 1942

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
r20n.jpg

R20N
 

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