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History of the manufacturer  

ELSI, Elettronica Sicula SPA, Palermo

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Name: ELSI, Elettronica Sicula SPA, Palermo    (I)  
Abbreviation: elsi
Products: Tube manufacturer

ELSI, Elettronica Sicula SPA, produced vacuum tubes, cathode ray tubes and semiconductors with designs and processes coming from Raytheon and Machlett. In 1969, it became ELTEL and focused its production on special tubes. Still today, it is active in microwave tubes, with the name of Galileo Avionica, ALELCO.

Founded: 1956
Production: 1956 -
ELSI was founded in Palermo, Sicily Italy, 1n 1956 by Raytheon and Machlett. For years it produced tubes for civil and military uses, cathode ray tubes and semiconductors. Since 1962 its production was fully qualified and tubes came out marked Raytheon or Raytheon-ELSI. In 1969 ELSI became ELTEL, Industria Elettronica Telecomunicazioni, a public owned company, dedicated to special tubes.
The plant was acquired by Alenia and continued to design and produce microwave tubes and components with the name of ALELCO, Alenia Elettronica Componenti, then Galileo Avionica, still active.

This manufacturer was suggested by Emilio Ciardiello.