Image / Ralph Heintz, Sr., holding Radiotron Tube, 1927

View source image on contributor's website.

Get Citation

Have a question about this item?

Contact Owner

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

Title: Ralph Heintz, Sr., holding Radiotron Tube, 1927
Creator: Unknown
Date Created and/or Issued: 1927/08/
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: This photograph was featured on page 84 of Jane Morgan's "Electronics in the West" with this caption: "Ralph Heintz holding a 50-watt 'Radiotron' tube from what may be the first short-wave transmitter to be installed on an airplane - on the Pabco Flyer first, a few days later on the Dallas Spirit."
Type: Image
Format: Black & White
Identifier: 18F2975F-9B87-468D-A151-241864355500
2003-59-482
Subject: Radio in aeronautics (LCSH)
Radio--Transmitters and transmission (LCSH)
Shortwave radio (LCSH)
Heintz, Ralph M., Sr

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.