Doc Ewen

Doc Ewen: The Horn, HI, and Other Events in US Radio Astronomy

by Doc Ewen, © 2003


Slide 10: Detecting the Interstellar Hydrogen Line, 1951

[Hydrogen line receiver schematic]

Hydrogen line receiver schematic from Ewen doctoral thesis. [Photo courtesy of Doc Ewen]

Slide 11
Modified on by Ellen Bouton