radiomuseum.org

VT-2

Information - Hilfe 
ID = 14981
       
Land:
USA
Marke:
Entwickler: Western Electric Company Inc.; New York (NY) 
Typ:  Sende-Triode, luftgekühlt   Endstufe 
Identisch mit VT-2 = E_Western = WE205B = 205B = 205A = CW-931
Erste Serie 1918 Radiokatalog Band 1, 2. Auflage
Vorgänger K_Western   202A  
Nachfolger 205B  
Sockel USA-UV-4-Stift-Sockel+Bayonet, ab 1914 (Codex=F)
Anwender Militär und/oder Behörden
Heizung Uf 7 Volt / If 1.35 Ampere / Direkt / Batterieheizung =
Beschreibung

Output power: 5 Watt at 300 Volt.
This was developed by Western Electric in 1917 for The Signal Corps. Rare earth coated filament. Filament voltage fom 6.5 to 7.5 volts, adjusted for the rated filament current.

Originally produced with the bayonet locking pin turned at a 45 degree angle to other Western Electric tubes. Commonly referred to as the Signal Corps - Navy pin base. This was to prevent accidental use of low power tubes, causing burnout. You will find many tubes on the market today with the pins ground off, some being relocated to allow locking in to other sockets.

See Tyne's "Saga of the Vacuum Tube", page 287.

 
Sammlerpreise 10 Sammlerpreise (nur sichtbar für Mitglieder Radiomuseum.org)
Literatur Taschenbuch zum Röhren-Codex 1948/49   
Saga of the Vacuum Tube, Tyne   p.100 , 101 et al
Tube Lore (I)
205e_sockel~~3.png VT-2: nach Western Electric 1933
Robert Schmalstieg
Mehr...
Just Qvigstad
Verwendung in Modellen 2= 1918 ; 1= 1920? ; 1= 1922? ; 1= 1925? ; 1= 1929
Anzahl Modelle bei Radiomuseum.org bestückt:6
Museum "National Electronics Museum and System Source Computer Museum"
Museum "Fondo per gli Studi di Storia delle Scienze"
Museum "Museo della Radio e della Fotografia"

Sammlung von

Robert Gillespie (USA)
Mario Giamboni (CH)
Sammlung von Mitglied aus I
Emilio Ciardiello (I)
Valery Gromov (RUS)
 
vt2_2.jpg

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[rmxtube-ge, noindex]
  
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