IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This prototype receiver was made by ...
Marked: "460814RCA / Radiola III / Type R1 / Range 220-550 Meters". (License data and patents also given). Unit is a regenerative detector with a single audio stage. Two WD-11 Radiotrons are employed.
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