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R20N

Information - Help 
ID = 18236
       
Country:
France
Brand: Celsior; France
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 / Series, AC/DC
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)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  r20ncelsiorapplicationdocs.png
  R20N: Radio-Plans
Patrice Zeissloff
 
r20n.jpg
R20N: R. Aufils
Raynal Aufils

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

 
r40ncelsiorsource.png
R20N: Radio-Plans
Patrice Zeissloff


Usage in Models 1= 1939??

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


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