File:PensacolaAug081920sRadio.jpg
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English: Broadcast radio receiver and loudspeaker from 1920s, Historic district museum complex, Pensacola, Florida. The radio is almost certainly a tuned radio frequency (TRF) receiver, common in the 1920s before superheterodynes. The 3 large knobs were for tuning in stations, and had to be turned in unison to the new station. The two smaller knobs (right) were probably the volume and filament current controls. Used with one of the earliest cone speakers, which were just beginning to replace horn speakers in the 20s. |
| Date | |
| Source | Own work |
| Author | Infrogmation of New Orleans |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:00, 2 October 2008 | | 2,089 × 2,023 (1.35 MB) | Infrogmation (talk | contribs) | {{Information |Description= Pensacola, Florida. Historic district museum complex. 1920s mass produced radio set with speaker. |Source= Photo by Infrogmation |Date= August 2008 |Author= Infrogmation of New Orleans |Permission= |othe |
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