| 1. | Standard condenser microphones
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| 2. | Acoustics - characteristics and specifications for laboratory standard condenser microphones
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| 3. | Acoustics - characteristics and specifications for laboratory standard condenser microphones
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| 4. | Precision method for pressure calibration of one - inch standard condenser microphones by the reciprocity technique
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| 5. | Method precision for pressure calibration of one - inch standard condenser microphones by the reciprocity technique
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| 6. | When working with a hotstage in transmitted light it is necessary to increase the working distance of your standard condenser
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