HP 3320A Operating And Service Manual page 153

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Figure 7-25. Power Amplifier A 14, Attenuator A 15; 3320B.
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OUTPUT ATTENUATOR 03320-66515 ('B' STANDARD)
03320-66556('B' OPTION 00 I I
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SEE TABLE I
Lrc:--....,..J
" +5V
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BOV
R29
3.3K
CR20
15V IOV
rms to
3.162Vrms
R30
IK R32
200
CR22
~5~
R34
200
R35
200
R40 CR23
R36
3.3K 15V
357
-30V R37 R3B
1.58K 95
R5B
2
R39
51.1
R26
2
t---'--1>-"
TP2
CRIO
CRI I
25Wc
CRI2
-2.1.5 Vdc
-25
Vde
1.0 Vdc
-1.OVde
R57
49.9
CRI6
CRI7
CRIB
-30V
-t-30V
- - - - - - - - -
-30V
+30V
R24
1.65K
R59 R60
1.65K B.45K
CRI4
R23
B.45K
02'
3.3 PF
.
R22f
49.9/.7Vdc
+C25 CRI5
.47
POWER AMPLIFIER
!
-30V
-t-30V
R50
10K
CR5
CR4
-30V
CR25
+30V
-30V
R6 R7
1.5K 1.5K
13 MHz
L P FILTER
CR6
'"'~
15V
CR7
BIAS
RI R2
ADJUST
1
R20 R55
49.9 10K B.B7K 100
CIO
100PF
R9
CRB
R64
1.65K
432
L4
+30V CR9
6.B
;12
R4
R3
-1.7
10K
I
249K
We
CI
20PF
r - - - - - r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
A 14
POWER AMPLIFIER 03320-66514 (f! MOOEL ONLY)
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15
0Hz
to 13MHz
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FROM AIOJ2
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-30V
-26.5
Vde
R47 CR26
24.9
-28.5
Vdc R48
5.IIK
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7-51/7-52