File:Coherer radio.webm
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Size of this JPG preview of this WEBM file: 800 × 450 pixels. Other resolutions: 320 × 180 pixels | 640 × 360 pixels | 854 × 480 pixels.
Original file (WebM audio/video file, VP8/Vorbis, length 2 h 29 min 27 s, 854 × 480 pixels, 15 kbps overall, file size: 16.32 MB)
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Summary[edit]
| Description |
English: Tests with an old coherer radio receiver restored by Dr. Antônio Carlos M. de Queiroz (in memoriam). The coherer is not perfect yet.
The wireless receiver uses the Braun system with tuned circuit, coupling capacitor, coherer and decoherer, sensitive relay, ringer and connection for an external recorder. The device belongs to the Museum of the Polytechnic School, Federal University of Rio de Janeiro - Brazil. http://www.coe.ufrj.br/~acmq/ |
| Date | |
| Source | Own work |
| Author | DrAntonioCarlosMdeQueiroz |
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:31, 19 May 2021 | 2 h 29 min 27 s, 854 × 480 (16.32 MB) | DrAntonioCarlosMdeQueiroz (talk | contribs) | Uploaded own work with UploadWizard |
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