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The radio amateur radio amateur radio operator has been producing the Moscow School Plant Chaika since the beginning of 1964. The Moscow school factory "Chaika" from 1964 to 1970 produced sets of radio designers for assembling children's pocket-sized radios. The first two sets were issued without a name, and the third was called "Young Radio Amateur". Radio receivers could be assembled by radio amateurs who have experience in making simple designs on transistors. From the sets it was possible to assemble direct-gain transistor radio receivers designed for reception in the range of 400 ... 1800 m. The output power of the receivers is about 100 mW. Powered by the battery '' Krona ''. The current consumed in silent mode is 6 ma at a maximum volume of 35 mA. The dimensions of the receiver housing are 105x67x28 mm. The first and second sets are distinguished by the fact that set 1 is completed with only main components and parts, and these are: housing, loudspeaker, matching and output transformers, ferrite rod, wire for winding coils, parts for assembling a switch and battery bracket , and a set of 2 all nodes and parts, with the exception of transistors and power supply. In any of the sets it was possible to assemble one of the two attached radio circuits of the radio developed by Ing. V.V. Plotnikov. Since 1965, the plant produced a set of 3 which was completed with basic assemblies and parts, here 2 ferrite rings and a plate with holes for parts and assemblies were added to the kit. The receiver housing was reduced in size and its design was improved (photo 3). On the basis of these kits, the plant subsequently produced the "Malchish" radio designer.