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VT118A_GPO

Información - Ayuda 
ID = 65360
       
País:
Gran Bretaña (GB)
Marca: Tungsram (Tube Brand), Tungsram Electric Lamp Works (Great Britain), Ltd.; London, British Tungsram Radio Works, Ltd.; London
Diseñador: Tungsram (Tube Brand), Tungsram Electric Lamp Works (Great Britain), Ltd.; London, British Tungsram Radio Works, Ltd.; London 
Tipo:  RECTIFIER TUBE (Detail uncertain)   Detector 
  Ca. 1925 up to 1945 very rare. ***
Idéntica a VT118A_GPO = CV1686
Válvulas similares
Other characteristic (electr. data):
  CV1687 ; D418 ; VT118B_GPO
Base Europe 3-Pin B3 (Eu H) Top contact with a cap.
Usada en Telefonìa
Filamento Vf 4 Volt / If 0.18 Ampere / Indirect / Specified voltage AND current AC/DC
Descripción

Used as a detector, rectifier and output tube. No grid pin

The VT118A_GPO and VT118B_GPO are selected versions of the D418. They differ in anode impedance, the VT118A_GPO has an impedance range of 2250 to 3000 ohms; the VT118B_GPO a range of 3000 to 3750 ohms.

 
Literatura -- Collector info (Sammler)   
d418_so~~1.png VT118A_GPO: Fin Stewart
Fin Stewart

Just Qvigstad
 
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