Brüel & Kjær 4131 Instructions And Applications

Quarter-inch Condenser Microphones
Microphone Cartridges Type 4135/36
and associated cathode follower.
Precision condenser microphones for laboratory
measurement purpose. Each microphone is in-
dividually calibrated . Frequency range of cali-
bration: 20 Hz- 200 kHz.
Dynamic range up to
180 dB.
BRUEL&KJ£H
Nrerum. Denmark .
eyr;
80 05 00 • ,;:;:' BRUKJA, Copenhagen . Telex: 5316
BB 4185 / 86