BRUEL & KJAER 4188 - Connections; Physical Dimensions

Chapter 8 —
1
/
2
" Microphone Preamplifier Type 2669
Introduction
Falcon™ Range of Microphone Products
Microphone Handbook
BE1380– 12
8
−
3
Alternativley, the preamplifier can be stored in the microphone’s case with the mi-
crophone when not in use.
8.1.2 Connections
8.1.3 Physical Dimensions
Pin No.
Connection
LEMO (2669L) Brüel& Kjær (2669 B)
1
Calibration Input Ground
2
Signal Ground Polarization Voltage
3
Polarization Voltage Calibration Input
4
Signal Output Signal Output
5
Not connected Power Supply Positive
6
Power Supply Positive Not connected
7
Power Supply Nega-
tive/Ground
Not connected
Casing
Connected to instrument chassis
Table 8.1 Pin designations
Fig.8.2 Physical dimensions of the preamplifier and connector
940478/1e
7
6
5
4
3
2
1
2669 B
7
2669 L
Cable's output plug
seen from outside
61
2
34
5
940993e
70 mm5 mm 50 mm
ø 12.7 mm