BRUEL & KJAER 1621 - Circuit Diagram with Parts List 1621.3

BRUEL & KJ.iER
Nrerum - Denmark
Circuit Diqgram with Parts List
1621.3
CIRCUIT COMPONENT TYPE
STOCK
DIAGRAIV
REF.
REF.
C
130-137 Ceramic 10 nF/ 30 V
CK
4101
N 1
"Max Voltage" switch
NN 0031
N 2
"Ext. Power Supply" switch NN 0035
N 3
"Man./Start" switch
NN 0050
O
1
"Fi Iter" switch OE 0139
O 2
"Frequency Range" switch OH 3052
120
"Frequency Tuning" 2 kO PO 2201
Q
120,121
LED TIL209
1 V/20 mA
OV 4000
Q
122
Silicon 1 N4004
400 V/l A OV 0237
Q
123
LED TIL209
1
V/20 mA OV 4000
R
120
Wire 4W 1%
15 O
RO 1221
Power cord
AN 0010
BNC socket
JJ 0130
7-pin socket
JJ 0709
8- socket
JJ 0802
BNC plug
Jp 0035
7-pin plug
Jp 0703
8-pin plug
Jp 0802
Banana socket
JT 6204
"Frequency Tuning" knob
SN 0070
"Filter" knob
SN 2522
"Frequency Range" knob
SN
2522
Retaining ring for knob
DB 0674
Socket screw for ring
YO 2083
Key for
screw
QA 0048
Fuse 0,5A
VF 0023
Battery container
ZG 0117
Battery R20 "D" 1,5 V
OB
0004
Furthermore 1621 contains the following Sub-assemblies the details of
which will be found under the respective numbers
Filter Circuit
ZE 0161
Filter and Power Supply Circult ZG 0109
Synchronization Circuit
ZH 0159
On page 0-2 will be found an exploded view of the instrument showing
details and stock ref. numbers of the cabinet parts
Valid from serial no. 694126
3-1
9.77