Modern vacuum tubes and how they work
Subtitle: with complete technical data on all standard tubes and many special tubes
By: by Robert Hertzberg.
Series: Radio-craft library. n 2̊
Publisher: Gernsback publications, inc.
Published: 1932
Place of publication: New York, N.Y
Language: eng
Number of pages: 64
Subjects: Vacuum-tubes.; Radio.
Notes: Pages 58-64, advertising matter.