radiomuseum.org

FER1_4Volt

Information - Hilfe 
ID = 28566
       
Land:
Grossbritannien (UK)
Marke: Louden Valve (Brand), Fellows Magneto Co. Ltd.; London
Entwickler: Louden Valve (Brand), Fellows Magneto Co. Ltd.; London 
Typ:  Triode (Hoch-) Vakuum   Niederfrequenz 
Identisch mit FER1_4Volt
Ähnliche
Heizdaten anders:
  FER1_6Volt
Erste Serie 1925 ?? Saga of the Vacuum Tube, Tyne page 392
Erste Quelle(n)
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.51 & 158

Sockel Europasockel 4-Stift B4 (Eu A, E, 4A) 1914
Anwender Radio/TV-Empfang etc.
Heizung Uf 4 Volt / If 0.1 Ampere / Direkt / Batterieheizung =
Beschreibung

Louden valves were marketed by Fellows Magneto Co. Ltd. from 1924 to 1927. Some Louden designations used were F1 and F2 for bright emitters; FER1, FER2 are the corresponding dull emitter tubes having thoriated filaments.

 
Literatur Saga of the Vacuum Tube, Tyne   page 392
Wireless World (The), London (WW, 79)   June 24th 1925 p652
British Radio Valves - The Classic Years: 1926-1946

b4_base_pins~~5.png FER1_4Volt: Fin Stewart
Fin Stewart


Just Qvigstad
fer1_spec.png
FER1_4Volt: Banneitz, TB der drahtl. Teleph. 1927
Anonym 15 Sammler

 
louden_fer1_nvm.jpg

 

[rmxtube-ge, noindex]
  

Datenkonformität Mehr Informationen