Liberty Headphones 53-W
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Federal Radio Corp.: Liberty Headphones 53-W [Speaker-P] ID = 1402656 933x700
Select picture or schematic to display from thumbnails on the right and click for download.
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alternative name
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Federal Recorder || Federal Tel. & Radio || Federal T&T | ||||
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Brand |
Orthosonic / Ortho-Sonic | ||||
| Year: 1921 | Category: Loudspeaker, headphone or earphone |
| Wave bands | - without |
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| Details | |
| Power type and voltage | No Power needed |
| Loudspeaker | - Is a Headphone or Earphone |
| Power out | |
| from Radiomuseum.org | Model: Liberty Headphones 53-W - Federal Radio Corp. / Federal |
| Notes | Type 53-W has 2200 Ohms. The 52-W has 3200 Ohms, price 10.50 $. |
| Net weight (2.2 lb = 1 kg) | 2 lb 0 oz (2 lb) / 0.908 kg |
| Price in first year of sale | 8.00 $ |
| Mentioned in | William B.Duck Catalog No.16, 3rd Ed. |
Model page created by Randall Stuefen. See "Data change" for further contributors.
All listed radios etc. from Federal Radio Corp. / Federal Telephone & Telegraph Co.; Buffalo, NY
Here you find 202 models, 89 with images and 129 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
