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2L20

Information - Help 
ID = 15161
       
Country:
Germany
Brand: TeKaDe (TKD), Süddeutsche Telefon-Apparate- Kabel- und Drahtwerke; Nürnberg
Tube type:  Triode, vacuum   Power/Output 
Identical to 2L20
Similar Tubes
Other characteristic (electr. data):
  RE152
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 2 Volts / If 0.15 Ampere
Description

Salzmann nennt im Buch "Röhrencodierungen der 20er und 30 Jahre" folgende Daten:

Endtriode
Uf: 1,7V, If: 0,2A
Ua: 100V, Ia: 9mA
Ug: -1,5V
S: 1,4 mA/V
D = 15%
µ = 6,6

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
2l20.jpg
2L20: gerd.eisenbarth
Gerhard Eisenbarth

 
2l20_sock.png
2L20: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

 
2l20_spec.png
2L20: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

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