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ID = 77925
Tube type:  Klystron, linear Beam 
Identical to ET-828AB

Base Wires
Was used by Radar
Filament Half indirect

Fluid-cooled power CW klystron. Mechanical tuning on the X-band, waveguide output flange. Used for guidance systems.

Made by Alenia in the Palermo plant formerly known as ELSI. The prefix ET indicates that the production of this tube started when the plant was named ElTel, Elettronica e Telecomunicazioni.

  • 12.6 kV collector voltage
  • 132 mA beam current
  • About 100 W output power

Information source -- Collector info (Sammler)   
ET-828AB: Private collection
Emilio Ciardiello


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