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FG57

Information - Help 
ID = 16708
       
Country:
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Thyratron   Power-supply 
Identical to FG57 = 5559 = ST57 = GL5559
Similar Tubes
Other shape (e.g. bulb type):
  NL-5559/FG-57

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Was used by Industrial
Filament Vf 5 Volts / If 4.5 Ampere / Indirect
Description This tube is a negative control mercury vapour type for use where it is desired to activate it 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. grid voltage -1.75 at anode voltage of 100 and -6.5 volts at anode voltage of 1000. It is listed on page 48 of the "Story of Electronic Development at the General Electric Company " Dated Dec 10th, 1930 Also made in Italy by Fivre. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 74 x 169 mm / x 2.91 x 6.65 inch
Weight 125 g / 4.41 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
fg57.jpg
FG57: K.H.Fischer
Karlheinz Fischer

 
fg57_so.png
FG57: Valvo Röhrentaschenbuch 1957
Michael Schlör

 
5559_fg57.png
FG57: Manufacturer's Literature
Emilio Ciardiello


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