Description

This klystron consists of a glass tube with an octal base and a metal pin sticking out of the top. There are also two metal discs that protrude from the glass envelope on the upper half of the tube. Serial no: 4309

Klystrons are linear beam vacuum tubes used as amplifiers for high radio frequencies from UHF up into the microwave range. The tube was invented by Russell and Sigurd Varian in 1937, who wanted to develop a way to use microwaves to detect airplanes flying under cloud cover or at night. This technology was used by the United States and Great Britain during World War II to create radar equipment light enough to fit on an aircraft. This one operated as oscillator with external cavity to 3GHz.

Additional Information

See MIT Rad Lab series. vol. 7, p. 508