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Technical data |
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| Assigned frequency band , Hz | 200-4000 | |
| Impedance at 1000 Hz frequency, Ohm. | 260±52 | |
| Output in the telephones operation at 1000 Hz frequency , Pa . | 4-8 | |
| Free field sensitivity at the 1000 Hz frequency, mV/ Pa | 1,0-1,8 | |
| Dimensions, mm | Æ32x13 | |
| Weight, gr | 14±2 | |
