Skip to main content

Image / De Forest Type D-7A Radio, c.1923

Have a question about this item?

Item information. View source record on contributor's website.

Title
De Forest Type D-7A Radio, c.1923
Creator
De Forest Radio Telephone Company
Date Created and/or Issued
1920-1930
Contributing Institution
History San Jose Research Library
Collection
History San Jose Online Catalog
Rights Information
Please contact the contributing institution for more information regarding the copyright status of this object.
Description
Broadcast receiver type D-7A, with interior sockets for three Audion vacuum tubes, c. 1923. Top panel of receiver opens for access to tubes and antenna coil socket. (Currently holds three de Forest Audion tubes, one of which is 802.71S Perham accession number, Type DV2.)
Type
image
Identifier
D44D0990-EEBD-43D7-B12A-633830266718
2003-1-151
Subject
Radio--Receivers and reception (LCSH)
Radio broadcasting--History (LCSH)
De Forest Radio Telephone Company
De Forest, Lee

About the collections in Calisphere

Learn more about the collections in Calisphere. View our statement on digital primary resources.

Copyright, permissions, and use

If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.

Share your story

Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.

Explore related content on Calisphere: