Known as R-250M / Kit-M for the Army, known as R-670 / Rusalka for the Navy.
 
Type : receiver
 
Frequency band: 1,5 - 25,5  MHz covered by 12 sub-ranges :
 
Range Frequency / MHz
1 1,5 - 3,5
2 3,5 - 5,5
3 5,5 - 7,5
4 7,5 - 9,5
5 9,5 - 11,5
6 11,5 - 13,5
7 13,5 - 15,5
8 15,5 - 17,5
9 17,5 - 19,5
10 19,5 - 21,5
11 21,5 - 23,5
12 23,5 - 25,5
 
Modulation : AM, CW, SSB
 
Sensitivity : 0,6 - 3 microV
 
Power supply : own supply
      Voltages: 127V, 220V / 50 Hz
 
Construction : tubes, 20 pcs, types : 6К3 / 6Х6С / 6А7 / 6П6С / 6Ж7 / 6Ж4 / СГ-3С
 
Documents collection (41 MB) : R-250M documents