This collection is not a guide for building a receiver by a novice radio amateur - for in this case, a separate brochure would be required for each individual receiver or amplifier circuit. This "Collection" contains about b0 of the most popular schemes among Soviet radio amateurs, both amateur and factory assembly. Circuits are equipped with all basic data of resistances, capacitors, coils and transformers. Wiring diagrams are not included for the following reasons: they require a lot of space, significantly increase the cost of the book and, in addition, due to the absence of all types of parts on the market, the wiring diagram practically loses its main meaning, because when assembling a diagram, an amateur is forced to replace one part with another, which changes mounting distances, wire arrangement, etc. About a quarter of the book is devoted to shortwave (and ultrashort) material.