Type : receiver
Frequency band : 1,5 - 24 MHz covered by 12 sub-ranges :
| Range | Frequency / MHz |
| 1 | 1,5 - 2,25 |
| 2 | 2,0 - 3,1 |
| 3 | 2,9 - 4,1 |
| 4 | 3,9 - 5,1 |
| 5 | 4,9 - 6,1 |
| 6 | 5,9 - 8,1 |
| 7 | 7,9 - 10,1 |
| 8 | 9,9 - 12,1 |
| 9 | 11,9 - 14,1 |
| 10 | 13,9 - 16,1 |
| 11 | 15,9 - 20,1 |
| 12 | 19,9 - 24,1 |
Modulation : AM, CW
Sensitivity : AM <= 0,25 microV
CW <= 3 microV
Power supply : own power supply 110V, 220V / 50 Hz
Contruction : tubes, 17 pcs, types : 6Ж4 - 2 pcs / 6a7 - 3 pcs / 6K3 - 7 pcs / 6Ж8 - 1 piece / 6x6c - 3 pcs / 6п6с - 1 piece
Documents collection (246 MB) : Krot documents
More photos : More Krot radio photos
The weight of the radio is 85 kg, the weight of the power supply is 40 kg.
Based on ideas taken from Koeln E52b, Telefunken T9K39 type radios captured from the Germans during WW2, the Krot - "Mole" - type receiver was developed in 1947
led by Vera Vasilyevna Elizarova and the partticipation of A.A. Savelyev, who led the development of the R-250. Krot radio was produced between1948 and 1952 at the
Kharkov radio factory and later, between 1953 and 1960 they produced the slightly modernized version with the name of Krot-M. The changes are the followings:
- the front panel was painted grey-blue instead of the previous black
- the gold-plated contacts of the drum shifter were replaced with silver-cadmium alloy.
