OTB Type A
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Harding, Holland &: OTB Type A [Crystal] ID = 1578322 846x1400
Select picture or schematic to display from thumbnails on the right and click for download.
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Brand
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OTB (O.T.B.) | ||||
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| Year: 1923 | Category: Detector-Radio (Crystal or diode, without tubes/transistors) |
| Main principle | Crystal or Solid State Detector |
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| Tuned circuits | 1 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | No Power needed |
| Loudspeaker | - For headphones or amp. |
| Power out | |
| from Radiomuseum.org | Model: OTB Type A - Harding, Holland & Fry, London |
| Material | Wooden case |
| Shape | Miscellaneous shapes - described under notes. |
| Dimensions (WHD) | 0 x 2.25 x 0 inch / 0 x 57 x 0 mm |
| Notes | turned mahogany lidded box,5"dia.; BBC/PMG stamp, GPO No.745; |
| Source of data | Radio! Radio! |
Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
All listed radios etc. from Harding, Holland & Fry, London
Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
