EM-21A
Dummy microphone
The EM-21 dummy microphone enables self-generated noise measurement that it is equivalent to the use of the measurement microphone.
The EM-21 dummy microphone replaces measurement microphone while self-genrated noise is being measured. It is an element having the same electrical parameters as the measurement microphone, but not responsive to sound.
Technical data
- Diameter of microphone:
- 1/2"
- Equivalent capacitance:
- 18 pF
- Polarization voltage:
- 200 V
- Dimensions:
- Ф 14 x 20 mm
- Weight:
- 16 g