URCh 1927
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Since 1927, the radio broadcasting receiver "URCH" has been producing one of the Ukrainian plants. Radio "URCH" assembled on radio tubes series "Micro" and is powered by batteries. The range of received waves 200 ... 2500 meters is overlapped with a roller switch. The receiver has the ability to connect a microphone. The type of radio could not be found.
Documentation:
Information from collection of Valery Khartchenko