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FG17

Informazioni - Aiuto 
ID = 16704
       
Stato:
USA (Stati Uniti d'America)
Produttore:
Progettista: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tipo:  Tiratron 
Identico a FG17 = ST17 = CV2957 = XG5-500 = CE-309 = 967 = E5000/05 = 867_Sylvania = PL17 = 1701_Amperex = NL-715 = TT-17_Taylor = MT17 = 5557
Valvole simili
Sostituita normalmente - piccola diff.:
  38217 ; SE-4261 ; Ste2500/05/2
Multiple differences or of other kind:
  5594
Zoccolo UX-Base (4 Pins (2 thick, USA 1924) Top contact with a cap.
Utilizzata per Industrial
Filamento Vf 2.5 Volt / If 5 Ampere / Direct
Descrizione

This tube is a negative control mercury-vapor thyratron for use where it is desired to actuate the tube with a change in negative grid voltage. It requires relatively little grid power and is suitable for use in relay circuits where current flow is desired in the absence of grid excitation. It is listed on page 48 of "The Story of Electronic Development at the General Electric Company" Dated Dec 10th, 1930. Early versions of the GE tube had a nickel plated UX base with porcelain insulation. Later tubes (1945) have Bakelite bases. Also made in Italy by Fivre.

 
Peso 90 g / 3.17 oz
Bibliografia Tube Lore (II)   p. 80 182 & 211
- - Manufacturers Literature   Data sheet ETI118 April 1945
Taschenbuch zum Röhren-Codex 1948/49
3l11.png FG17: Manufacturer's Literature
Emilio Ciardiello
Segue ...
Just Qvigstad 		5557_fg17.png
FG17: Manufacturer's Literature
Emilio Ciardiello
Utilizzo nei modelli 1= 1945?
Numero totale di modelli di Radiomuseum.org che utilizzano questa valvola:1

Collezione di

Aires Gomes (P)
Fabio Masetti (I)
 
fg17_a.jpg

FG17
 
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