HP 120A - Page 94

+IOOV
+ !00V
GATE (-)
+ 380V
(SEE SWITCH DETAIL )
r
GATE (+)
(g) TRIGGER SENSITIVITY
15V
.OILLF
C2I7
(SEE SWITCH DETAIL )
|S 101
/ S20I
-150 V
R200
R20I
-150 V
(SEE HORiZ. AM PL. SCHEMATIC)
- 150 V
1 AUTO.
-I5OV
OS202|
50K
I00K
REF. DESIGNATORS
| TRIGGER LEVEL | ’ ©
-I5OV
R233
820
CONDITIONS OF MEASUREMENT OF WAVEFORMS:
- !5OV
-150 V
ON MODEL 150A OSCILLOSCOPE
J
R248
24 K
C206
20J1F
C209
2000
C2I6
.02ULF
SWEEP
LENGTH
1207
NE2
C205
20LLF
R249
270K
R20B
24 K
R229
33K
C207
68
R2I5
I5K
R23I
25OK
R220
33K
R238
2M
1206
NE 2
SWEEP
TIME
HORIZ.
SENS.
R205
83K
R206
3.6K
R250
3900
C2I2
■ OIHF
R22I
IOOK
1202
NE2
1208
NE2
1205
NE2
R242
820K
R243
470
R244
47K
unassigned :
C2I8 -220
218
208
R209
IOOK
■AW
R227
33K
R217
100
R226
I8K
L20I
500J1H
R222
47 K
C2O3
15
C2I4
14-150
R228
I0K
250
202
205
C20I -
1201 -
J 201
L20I
R20I -
S20I -
V20I -
FROM
VERT. AMP
o-
CAL
TO
HORIZ.
AMP.
R223
IK
C2II
100
R246
10
R2I4
47K
AW-
UNBLANKING
LEVEL
(SEE SWITCH
DETAIL )
C2I0
100
■ va
R237
IM
C2O8
.05IJJF
— If -----
V205A
</ 2 6U8
SAWTOOTH
INTEGRATOR
| (SEE SWITCH
DETAIL)
R204
3.6 K
C204
22
V203A
‘ / 2 I2AU7
GATE INVERTER
- I5OV -I5OV
R2I0
200K R2II
I20K
------------- Wr-
V203B
‘ / 2 I2AU7
HOLD-OFF
CATHODE
FOLLOWER
V205B
‘ / 2 6U8
SAWTOOTH
INTEGRATOR
V204A a B
I2AU7
INTEGRATOR
SWITCH
V202A a B
6U8
START - STOP
TRIGGER
R236/^<
I60K i
C2O2 R2O2
.O22LLF 100
C2I8X
330
V20I
6AN8
TRIGGER GENERATOR
R207
I0K
R235 = j C2I3
24K 020
R2I2
.6K
COPYRIGHT IMS BY HEWLETT-PACKAID COMPANY
This drawing Is Intended for Hie operation
end maintenance of Hewlett-Packard equip 
ment and Is not to ba used otherwise or
C20I
1.0
STABILITY
| SYNC | SWITCH IN | INT - |
| SWEEP TIME | SWITCH TO | .5 MICROSECONDS / C m ]
AC-2IA PROBE
+ 380V
8.5 V (BROAD PATTERN DUE TO RE)
7 150 V
SWEEP
OUTPUT
1
1
SWEEP
TIME
1 O-» -O-
.Ln
i o
i
i
HORIZ.
SENS.
i
L
reproduced without written consent of the
Howletf-Pockord Company.
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