Private company
CPI International
Holding company for producer of vacuum tubes etc
CPI International, Inc. is the holding company for Communications & Power Industries, the largest manufacturer and rebuilder of electron devices (primarily vacuum tubes) in the United States. CPI was founded in 1995 when Varian Associates sold its electron device business (the original business of its founders) to concentrate on medical systems.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
- HeadquartersPalo Alto1
- Websitewww.cpii.com
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CPI International, Inc. is the holding company for Communications & Power Industries, the largest manufacturer and rebuilder of electron devices (primarily vacuum tubes) in the United States. CPI was founded in 1995 when Varian Associates sold its electron device business (the original business of its founders) to concentrate on medical systems. Its major subsidiaries include Eimac (which manufactures new vacuum tubes for broadcasting, radar, medical systems, and other applications), Econco (a vacuum tube rebuilder), Beverly Microwave Systems, and Radant Technologies. CPI International made its initial public offering in April 2006.2
Products and brands
- vacuum tube
Listed on Wikidata.1
Timeline
- 1975Founded Founded1
Links
- Websitewww.cpii.com1
- WikipediaCPI International
- WikidataQ5013652
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataCPI International on Wikidata
- 2WikipediaCPI International on Wikipedia
- 3