Radio “Power” Tubes

Linked to Radio Broadcasting

Share Feedback

These heavy-duty "power" tubes, built around 1929, transmitted radio signals. Stations often used a combination of ice and fans to keep the tubes cool.

Courtesy of Michael H. McDougald

Radio “Power” Tubes

Featured Content

Civil Rights Movement

Civil Rights Movement

Mid- to Late 20th Century Topics
James Oglethorpe

James Oglethorpe

Colonial Figures

Trending

Primus E. King

Primus E. King

People
Ku Klux Klan in the Reconstruction Era

Ku Klux Klan in the Reconstruction Era

Civil War & Reconstruction Groups & Organizations
Lena Baker Case

Lena Baker Case

Early 20th-Century Topics
Civil War in Georgia

Civil War in Georgia

History Overviews

Updated Recently

Primus E. King

Primus E. King

2 months ago
J. W. Golucke

J. W. Golucke

2 months ago
Central State Hospital

Central State Hospital

2 months ago
Thomas Spalding

Thomas Spalding

3 months ago

A More Perfect Union

The New Georgia Encyclopedia is supported by funding from A More Perfect Union, a special initiative of the National Endowment for the Humanities.

Learn More