Component values for the various frequencies are listed in Table 2.
Components should rest against the printed circuit board. Leads
should be soldered and cut flush.
Table 2.
Blank
Crossover
Card
Component
Values
Crossover
Capacitors
Resistors
Frequency
C1-C5
R1-R5
(Hertz)
(microfarads)
(ohms)
900
.012000
10k
1100
.010000
10 k
1200
.008200
11 k
1500
.008200
9.1 k
2000
.004700
12 k
2500
.001800
24k
5000
.001500
15k
6000
.001200
16k
7000
.001500
11 k
9500
.001200
10k
Note: Resistors are all 1/4-Watt, 5% tolerance. Capacitors
are all 5% tolerance, SEACOR or AMPEREX metalized
polyester, or equivalent.
Parts List
Servicing should be referred to qualified personnel.
A list of major parts has been included for convenience.
Schematic Reference
Number
JBL Part
Number
Description
5231
5232
TRANSFORMER
T301
T301
51325
Power
Transformer
DIODES
CR401,402,
403,404
CR405,
406
CR401,
402,403,
404
CR405,
406
39869
52225
IN4003
1N4746
TRANSISTORS
Q401
Q402
Q401
Q402
48342
48341
MPSU06 (NPN)
1
- MPSU56 (PNP)
1
INTEGRATED
CIRCUITS
U401,402,
403
U401
s
402,
403,404,
405,406
-51366
2
RC4131DN
3
OTHER
R407
DS101
S101
R407,
414
DS101
S101
51367
82515
84733
Pot, 10,000-ohm,
10%
log taper
Pilot Light
Power Switch
IMPS refers to Motorola devices
2May
be JBL P/N 53510, Motorola P/N
MC1741SC
P1.
3RC
refers to Raytheon devices
Figure 4. Blank
Crossover
Card
WRITE
FREQUENCY
HERE
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