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The radio battery "Tallinn B-2" since 1950 produced the Tallinn plant "Punane Rat". The name of the receiver in Estonian is read as '' Tallinn P-2 ''. The receiver is assembled according to a superheterodyne pattern on 4-finger radio tubes and operates in the ranges: A / C and MW. IF 465 kHz. Sensitivity is not worse than 400 µV. The adjacent channel selectivity is about 20 dB. Rated output power 0.1 watts. The radio receiver is powered by special batteries: an incandescent voltage of 1.2 V and an anode voltage of 90 V. There is a possibility for feeding the heat from an acid battery with a voltage of 2 V, and a rheostat is mounted on the back wall to reduce the voltage. In addition to the receiver attached universal pads, allowing the use of standard batteries. The dimensions of the radio receiver are 420x275x200 mm. Weight 7 kg.