Sorry, this page is not translated yet. Automatic translation used.
A radio receiver of the "LR-1" type from 1925, issued by the Trust of the Weak Current Plants, was part of the basic equipment of the Radiolina No. 1 receiving installation. The device is a regenerative single-tube receiver with a simple circuit. The advantages of the regenerative scheme, simplicity of design and maintenance, low price (60 rubles) compared with the cost of the regenerative receiver professional type LB2. The range of waves from 250 to 2000 meters corresponds to the waves of Russian and Western European broadcasting stations - they make it interesting for most radio amateurs, especially those living in the provinces. This receiver also has the advantage that its constructive implementation makes it possible, by simple connection, to turn off the feedback coil and use it as an ordinary tube detector receiver. In addition, it is possible to sequentially (cascade) connect two or three receivers and thereby obtain various circuits with one or the other advantages. By joining the cascade of 2 receivers of a 2-tube LF amplifier, it was possible to achieve a very good reception of Russian and many foreign radio stations.