Brüel & Kjær 4131/32 Instruction & Application

One-inch Condenser Microphones
Microphone Cartridges Type 4131/32
Cathode Followers Type 2612/2613, 2630
Accessories
Precision condenser microphones for measurement
purpose . Each microphone is individually cali-
brated. Frequency range of calibration 20-
20ooo c/ s. The 4132 fulfils the requirements of
the American Standard A.S.A. Z. 24 .8-1949.
BHUEL &
KJ~H ·
Nrerum, Denmark . ey[;' 80 05 00 .
~
BRUKJA, Copenhagen . Telex; 5316
4131.4132