File:Ship spark transmitter tuned circuit 1921.jpg
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![File:Ship spark transmitter tuned circuit 1921.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Ship_spark_transmitter_tuned_circuit_1921.jpg/453px-Ship_spark_transmitter_tuned_circuit_1921.jpg)
Size of this preview: 453 × 600 pixels. Other resolutions: 181 × 240 pixels | 362 × 480 pixels | 852 × 1,128 pixels.
Original file (852 × 1,128 pixels, file size: 223 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:43, 3 May 2021 | ![]() | 852 × 1,128 (223 KB) | commons>Materialscientist | FFT |
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