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CF-185_DeForest-UV

Informazioni - Aiuto 
ID = 69017
       
Stato:
USA (Stati Uniti d'America)
Produttore: DeForest-Tubes
Progettista: DeForest-Tubes 
Tipo:  Triodo a vuoto   Audio Frequency 
  <1925 very rare
Identico a CF-185_DeForest-UV
Valvole simili
Sostituita normalmente - piccola diff.:
  D_Moorhead-UV
Altra base:
  CF-185 ; D_Moorhead-E12

Zoccolo UV-Base (4 Pins+Bayonet, USA 1914 WE)
Utilizzata per Radio/TV-reception etc.
Filamento Vf 6 Volt / If 0.84 Ampere / Direct / Battery =
Descrizione

This tube is a successor to the CF-185, which was fitted with a Candleabra (E12) screw base, It was first made by de Forest in 1921. The base of this tube is nickel plated brass. As with the earlier tube, the grid is a fine wire wound on a glass frame. It has an oxidised tungsten filament and the anodes are sheet tungsten. The tube was rebased UV for the US Signal Corps. 


uv_triode_tube~~14.png CF-185_DeForest-UV: Fin Stewart
Fin Stewart


Just Qvigstad
 
de_forest_cf185_uv.jpg

 

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