Stream episode Russell Varian: The Man Behind the Klystron Tube, Silicon Valley and Castle Rock State Park by Sempervirens Fund podcast | Listen online for free on SoundCloud
Russell and Sigurd Varian with klystron — Calisphere
Varian VA 259E Reflex Klystron Tube Microwave Made in USA F42 | eBay
File:Klystron tube, 425 MHz, Varian Corporation, 1959, used in Thule, Greenland, radar station - National Museum of American History - DSC00012.jpg - Wikimedia Commons
National Museum of American History
1 X VA-237D VARIAN KLYSTRON TUBE. CE27
Varian X-13 Micrometer-Tuned Reflex Klystron Microwave Tube / Power Source 8.1 to 12.4 GHz
Varian brothers with three-cavity klystron, ca. 1950 — Calisphere