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The TsRL-9 battery radio receiver, developed in 1934 by the Central Radio-Laboratory of Glavasprom, model No. 9), is a superheterodyne and is designed to be powered from direct current sources. The high-frequency receiver does not have a pre-amplification receiver. The role of the local oscillator, the first detector and the mixer is performed by the Pentahydride SB-191. The amplification of the intermediate frequency in the radio receiver is performed by one cascade operating with a high-frequency pentode of the type SB-190. After amplification at the intermediate frequency, signals are sent to the double diode-triode SB-156. The diode part of this lamp rectifies the signal, and the triode part amplifies the low frequency. Further amplification at low frequency is produced by a three-electrode lamp SB-152 and a terminal lamp of the last stage "” a double triode in class B of type SB-194 "” giving an output of about 1 W. All lamps have a two-volt glow. The receiver has an automatic volume control device, the so-called automatic volume control with a delay, manual volume control and tone control. The low-frequency part of the receiver can be used to play gramophone records. Due to the problems of subcontractors and their unavailability with the release of new parts, components and components, the radio did not go into production.