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CG-1787

Information - Aide 
ID = 67938
       
Pays:
Etats-Unis
Fabricant: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Concepteur: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Type:  Triode, vacuum   Audio Frequency 
  <1925 très rare
Identique à CG-1787

Culot UV-Base (4 Pins+Bayonet, USA 1914 WE)
Utilisé par Militaire et/ou Services Publics
Chauffage Vf 3.65 Volt / If 0.65 Ampère / Direct / Battery =
Description

This tube was a special receiving type designed for the U.S.Navy late in 1924 and the following is stamped on the base: "Licensed only for Governmental and not Commercial uses nor for toll and not for resale". This wording is also on the patents list on the box. Also stamped on the base is: "US Navy Dept. Type CG-1787 GE Co". The tubes were made at both the Nela park factory in Ohio (with phosphorus getters) and the Harrison factory in New Jersey (with magnesium getters).

 
Dimensions
(l x h x p)
incl.pins/tip
x x 45 mm / x x 1.77 inch
Bibliographie - - Manufacturers Literature   
Tube Lore (II)   p. 182
-- Collector info (Sammler)

uv~~76.png CG-1787: Fin Stewart
Fin Stewart


Just Qvigstad

Collection de

 
20190902_162820.jpg

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