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Radio tuning coil No. 300, 1922-1923 | Science Museum Group Collection
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Radio tuning coil No. 750, 1922-1923 | Science Museum Group Collection
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![Winding your own coils [part 1]](https://industrial-electronics.com/measurement-testing-com/images/rf-ckt-dsgn_4-1.jpg "Winding your own coils [part 1]")
Winding your own coils [part 1]
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Tuning Coil, Radio, Lockheed Sirius "Tingmissartoq", Lindbergh | National Air and Space Museum
