Search examples: Microsoft | 2015 | 2014/10 | 4.12 | 04/20 | 05/26/1980 | Galileo Galilei
  1. Home
  2. Events
  3. Detail of event

Dr Lee DeForest demonstrated...

event · 20 October 1906 · 119 years ago

Dr Lee DeForest demonstrated his electrical vacuum tube (radio tube)

More events on 20 Oct

© 2016 OnThisDay.net All rights reserved.
Loaded in 0.0027s.