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831A

Information - Hilfe 
ID = 83392
       
Land:
USA
Marke: Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Entwickler: Sylvania (Hygrade, GTE, Nilco); Emporium (PA) 
Typ:  Sende-Triode, luftgekühlt   Endstufe 
Identisch mit 831A
Sockel Pin-and-blade jumbo (3 Kontakte) Obenanschluss-Kappe.
Anwender Radio/TV-Empfang etc.
Heizung Direkt
Beschreibung

This tube is a specially designed version of the 831. It has has a "floating" graphite anode suspended on "lava" collars ti eliminate the "corona effect".

 
Literatur Tube Lore (II)   p. 77
Babani, International Radio Tube Encyclopaedia   p. 182 & 183

Just Qvigstad
 
[rmxtube-ge, noindex]
  
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