Filtering the Ether.—Dr. James Robinson, with his mystery wonder box, known as the Stenode-Radiostat system which may prove one of the most important wireless discoveries of recent years. It is claimed that with its aid a wireless set can eliminate all interference, no matter from what source [?]ey come, and that it will enable 5000 stations to operate betweeen the wavelengths. of 300 and 500 metres. —Central Press, photo.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19300124.2.36.1
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Radio Record, Volume III, Issue 28, 24 January 1930, Page 9
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69Filtering the Ether.—Dr. James Robinson, with his mystery wonder box, known as the Stenode-Radiostat system which may prove one of the most important wireless discoveries of recent years. It is claimed that with its aid a wireless set can eliminate all interference, no matter from what source [?]ey come, and that it will enable 5000 stations to operate betweeen the wavelengths. of 300 and 500 metres. —Central Press, photo. Radio Record, Volume III, Issue 28, 24 January 1930, Page 9
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