Portable Tube Radio Model 5P31A by Motorola Inc., 1957

Motorola Inc. / Galvin MFG Corp., 4545 W. Augusta Blvd., Chicago, IL [Humboldt Park]

Research is underway on this one and a full write-up will be coming soon.


Archived Reader Comments:

“This radio is a Motorola Roto-tenna portable radio, Corsair model 5P31A, circa 1957.  The case is metal, covered in Grey Tweed Miracle Fabric; with maroon plastic trim.  The rotating handle, an exclusive Motorola design, contains the radio’s antenna. It could be turned to improve radio station tuning. A Golden Voice speaker and Volumatic technology kept the sound from fading out. The radio’s PLAcir chassis operated on AC, DC or battery power.” — Sue Topp, 2017

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