+
Handout
People and Discoveries: Lee De Forest Handout
PBS

People and Discoveries: Lee De Forest

For Students 9th - 10th
A biography on audion inventor, Lee de Forest, from childhood on. Hyperlinks to additional information about the radio and broadcasting.
Get Free Access See Review
+
Handout
Ced Magic: 1906 Deforest Audion Vacuum Tube Handout
Other

Ced Magic: 1906 Deforest Audion Vacuum Tube

For Students 3rd - 8th
This is a one page presentation of the historical development of the audion tube. An image of DeForest's invention is included.
Get Free Access See Review