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The "Shkolny" detector radio receiver (conditional name) has been produced since 1965 by the Leningrad plant "Elektrodelo".
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The radio receiver consists of two inductors wound on a common frame (one for reception in the LW range, the other in the MW range), a detector, a variable capacitor and a blocking capacitor.
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With the help of the model, having connected high-impedance headphones to it, a good antenna and grounding, the reception of programs of radio broadcasting stations was demonstrated at a distance of 100 kilometers or more.
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The Ministry of Education of the RSFSR, through the appropriate factories to demonstrate the operation of electrical or radio devices, produced a variety of working demonstration models.
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The photographs show demo layouts of the detector radio receiver.
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