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SP4/U1

Informazioni - Aiuto 
ID = 33288
       
Stato:
Gran Bretagna (Regno Unito)
Produttore: Tungsram (Tube Brand), Tungsram Electric Lamp Works (Great Britain), Ltd.; London, British Tungsram Radio Works, Ltd.; London
Progettista: Tungsram; Budapest (see also British T.) 
Tipo:  Pentodo a vuoto   UHF 
Identico a SP4/U1
Zoccolo Europe side contact P8A (Au P, 8SC) 2 Top contacts.
Utilizzata per Radio/TV-reception etc.
Filamento Vf 4 Volt / If 0.7 Ampere / Indirect / Specified voltage AC/DC
Descrizione

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.

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

Just Qvigstad
 
uk_sp4_u1.jpg

 
[rmxtube-en]
  
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