File:Small spark gap transmitter.jpg
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Small_spark_gap_transmitter.jpg (699 × 600 pixels, file size: 62 KB, MIME type: image/jpeg)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:16, 28 July 2010 | | 699 × 600 (62 KB) | Kwiggins (talk | contribs) |
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