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PT4_Ferranti

Información - Ayuda 
ID = 49882
       
País:
Gran Bretaña (GB)
Marca: Ferranti, GB
Tipo:  Vacuum Pentode   Power/Output 
Idéntica a PT4_Ferranti
Válvulas similares
Heater different:
  PT4
Fuente principal (es)
1934 : History of the British Radio Valve to 1940 p. 189
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Usada en Radio/TV-reception etc.
Filamento Vf 4 Volt / If 2 Ampere / Direct / Specified voltage AC/DC
Descripción

Pa <8W, 2.5W output into 6500 ohms.

This differs from the MOV version in that it has a 2A heater current and very slightly different characteristic.

 
Literatura Wireless World (The), London (WW, 79)   Data Nov 1934
ferranti_pt4_circuit.png
PT4_Ferranti: Ferranti Valves, List Wb. 560
Achim Dassow
ferranti_pt4_socket.png PT4_Ferranti: Ferranti Valves List Wb. 560
Achim Dassow

Just Qvigstad 		ferranti_pt4_data.png
PT4_Ferranti: Ferranti Valves List Wb. 560
Achim Dassow
Mas ...
 
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