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SP4/U1

Information - Hilfe 
ID = 33288
       
Land:
Grossbritannien (UK)
Marke: Tungsram (Tube Brand), Tungsram Electric Lamp Works (Great Britain), Ltd.; London, British Tungsram Radio Works, Ltd.; London
Entwickler: Tungsram; Budapest (see also British T.) 
Typ:  Vacuum Pentode   UHF 
Identisch mit SP4/U1
Sockel Aussenkontakt-8er / Topf P8A (Au P, 8SC) 2 Obenanschlüsse.
Anwender Radio/TV-Empfang etc.
Heizung Uf 4 Volt / If 0.7 Ampere / Indirekt / Spezifizierte Spannung ~ =
Beschreibung

This tube was designed by tungsram, Hungary as a special type of UHF tube for ultra short waves. It was designed with three cathode leads to minimise inductance feedback. Cathodes were connected by way of tthe two top caps.

 
Literatur Wireless World (The), London (WW, 79)   p. 246, March 16th, 1939

Just Qvigstad
 
uk_sp4_u1.jpg

 
[rmxtube-ge, noindex]
  
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