radiomuseum.org

PV2_Ediswan

Informazioni - Aiuto 
ID = 28860
       
Stato:
Gran Bretagna (Regno Unito)
Produttore: Ediswan, Siemens Edison Swan Electric Co.; London
Progettista: Ediswan, Siemens Edison Swan Electric Co.; London 
Tipo:  Triodo a vuoto   Power/Output 
  <1925 rare
Identico a PV2_Ediswan
Valvole simili
Sostituita normalmente - piccola diff.:
  B205
Prime serie 1924 ? 70 Years of Radiotubes and V. p241
Prime informazioni
1924 : British Radio Valves - The Vintage Years: 1904-1925 pp,31, 32, 115
1924 : History of the British Radio Valve to 1940 p. 115
Evoluzioni PV2_DE  
Zoccolo Europe 4-Pin B4 (Eu A, E, 4A) 1914
Utilizzata per Radio/TV-reception etc.
Filamento Vf 6 Volt / If 1.5 Ampere / Direct / Battery =
Descrizione

Bright emitter. Not to be confused with completely different Dull Emitter PV2, here in RMorg as PV2_DE.
Thrower depicts a globe bulb. There is also a variant with a tapered bulb. The "pinch" in the globe shaped bulb is flat while in the tapered bulb it is of a four cornered "X design.

 
Bibliografia Saga of the Vacuum Tube, Tyne   p.373
70 Years of Radiotubes and V.   p. 192
British Radio Valves - The Classic Years: 1926-1946
b4_base_pins~~227.png PV2_Ediswan: Fin Stewart
Fin Stewart

Just Qvigstad 		pv2.gif
PV2_Ediswan: Aus eigenen Unterlagen
Rudolf Osterkamp

Collezione di

Konrad Birkner † 12.08.2014 (D)
 
pv2.jpg

 

Varianti

this tapered variant is not mentioned in Thrower.
[rmxtube-en]
  
Conformità dei dati Ulteriori informazioni