HP 120A - Page 53

(^) MODEL I2OA/AR
VOLTAGE-RESISTANCE DIAGRAM
(VIEWED FROM BELOW)
-30V
K.
G.
Hm
100V
70K
28 KA
I5K
1500
90K
(5651)
CALIBRATOR SET
X5 SWEEP GAIN
XI SWEEP GAIN
V20I
(I2AZ7)
V202
ajcno
V3I2Q
1500
idK
(I2B4A)
V309
V306
2- SET |VERT.SENSITiviTY] TO 1 10 MILLIVOLTS CM |
i JUMPER REMOVED ON VERTICAL INPUT.
+-93V
.G
G
440 VAC
6500
NC
V2 (I2AU7)
AMPLIFIER
R247 '
TRIGGER
SENSITIVITY
V309 (6X4)
RECTIFIER
VIOI (I2AZ7)
AMPLIFIER
V31I (6AU6)
AMPLIFIER
+43V
VI02 (I2AZ7)
OUTPUT AMPLIFIER
(I2AU7)
SWITCH
V306 (5Y3)
RECTIFIER
zZSY
TOOK
CI07
PHASE ADJ.
V2O2 (6U8)
START-STOP TRIGGER
ttQIE-S.
CONDITIONS OF MEASUREMENT:
I. SET [SWEEPTIME] TO [50 MICROSECONDS/CM]
V203<J
CI24®
V307 V308 V3II
V307
REGULATOR
V308 (6U8)
AMPLIFIER AND OUTPUT CATH. FOLLOWER
V3I2
REFERENCE TUBE
63
K4c
V20I (6AN8)
TRIGGER GENERATOR
r-6.3 VAC
V3
OUTPUT AMPLIFIER
-30V
!5K
-70V
30 K
-62V
30K
-63V
30K
-I45V
!3K
+560V
70KA
-I45V
!3K
-63V
1.3 M
f79V
65K
+ 82V
ZOOK
+-50V
6500
t 50V
6500
-I5V
+ 50V
6500
-I4V
!6KA
+380V
7500
+300 V
IOOK
~+380V
IOOKA
•+35OV
IMA
+380V
IOOKA
+560V
+ 35OV
12M
+-56OV
75KA
I6K
+80V
65K
+ I.7V
9000
V3I0 (I2B4A)
REGULATOR
-------------- |Hm
* ------ 6.3WC-,
I +50V
-63 V
30K
V204
_ INTEGRATOR
-50 V
650K
-2.IV
-62V
30K
-77V
25K
-85V
45K
V205 (6U8)
SAWTOOTH INTEGRATOR
-380v _________ -i,ay
VI (I2AU7)
INPUT AMPLIFIER
+'-35V ___________
90K
0
V203 (I2AU7)
GATE INVERTER AND HOLD-OFF CATHODE FOLLOWER
TOK
WN
-30V
440 VAC
+86V
10K \
+84V
___ GzJ
65 K
+I90V
P 2 /C
IOOKA
+50 V
H/Q
6500
/ h
15K
-I2V
*
3600
0
8/7 Sc p
0
-83V
UM
-74V
I5K \
-71 V
X?
450K
p 8
-I20V
Gz
-U7
350K
Pi
0
2
J
H/
2 3 X\
5
-5V
70 K
-iH
/ -30V
-30 V
I6K
-30 V
6.3VAC \
I » X
!6K
0
^P
0
-72V
550K
-2V
-65 KA
-30V
16K
+2.3 V
K;
IM >
+ 43V P 2 /
90KA
0
H Ju
0
+I2V
80K
-I9V
/ Gl
I5K
-I3V
K|
30K
-30 V
~5 k
8K
\ k 2
/ nc
+43 V
G 2
^7 8
9 \
+ 105V
P 2 /
+ IIOV
IOOK
1 b
2// P|
IOOKA
+I2V
4
3
+44V
to
G >
+24V
H /
K|\
+44V
+ I08V
I7K
+108V
— X 2 Z
•T300V
50KA
+50V
(Hm
6500
+-270V
W P ‘
StfATJ
+ IIOV
r g (
IOOKA
+ I10V
-40V
K,
330K
-30V
H
I5K
-2.IV
3M
1500 5
-30V
HmJ^j
!5K
— 1.8 V
K 2
tIOOV
50 KA \
0
0
+ 350V P P / 7
IM
+50V ”
*H 6
6500 T
6.3VAC
+50V 1
h /
45K
f G t
200K
+380V
Pi
ZjJ 1
90KA
-2.4 V
' Gp
I60K
+ 65V
Sc ’
-30V
80K \
Z h
6.3VAC
1. .
I5K
_-30v
Y
V H
I5K
-60V
1
1
52
p
-4V
50K
BOOK
-47V
\k0
0
30K
0
£ ______
0
4- 380 V
80KA V
-I50V
P
I3KA
P'x
+ I20V
K/
I50K
< G 2
3M
Sc 2 + IQOV
3 V\
a d-
t 50K
G3VAC
1 -3QV
H I5K
-30V
H
I5K
+ 48V
50V
/ H
6500
k 63VAC
+50V
4\y h
6500
W
y nc
-150 V
13 KA
500K
0
K /
0
+ I20V
P
6,
' H \
6500
y^NC
k g
-I5V
500K