Human Tech Tree
Researched1940 · Machine Age (1900 – 1945)

Information / Electronics & Computing

Cavity Magnetron

Randall and Boot's magnetron (Birmingham, 1940) makes powerful microwaves in a small tube and allows compact centimetre radar.

Open in the interactive tree →

John Randall and Harry Boot built the cavity magnetron in February 1940. The tube made airborne radar possible and still sits inside every microwave oven.

Prerequisites

Unlocks

Sources

More in Electronics & Computing · Machine Age

All 52 points in Electronics & Computing →

Open in the interactive tree →