1920s_TRF_radio_manufactured_by_Signal.jpg
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Summary
| Description |
English:
1920s TRF radio manufactured by Signal Electric MFG. CO. located in Menominee Mich. Demonstrates early radio construction methods using "breadboard"
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| Source | Own work |
| Author | Armstrong1113149 |
Licensing
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I, the copyright holder of this work, release this work into the
public domain
. This applies worldwide.
In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law. |
| Annotations | This image is annotated: View the annotations at Commons |
