AC40 Service Manual
Selecting B71 Bone transducer
Select "Transducer Setup" (Figure 30)
Select "Bone conductor or Bone conductor 2" and select B71
Calibration of B71
Equipment needed for calibrating the B71:
Measuring amplifier
Artificial Mastoid IEC 60318-6
Frequency counter
Correction values for Mastoid
Figure 30
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