Tektronix 7834

OPERATING CONDITIONS :
1 .
TIME BASE, SINGLE SWEEP MODE .
2 .
STORAGE LEVEL CONTROL, FULLY CW .
3 .
PERSISTENCE CONTROL, FULLY CCW .
FRONT TARGET
FAST TARGET
COLLECTOR
CE4
CE3
CE2
CE1
FGA
TIME
IN SECONDS
VARIABLE PERSISTENCE
0

.1

.2 .3 .4 .5 .6 -7 .9 .9 1 .0 1 .1 1 .2 1 .3 1 .4 1 .5 1 .5 1 .7
MANUAL

TIME-BASE MANUAL TIME-BASE
ERASE

TRIGGER SINGLE TRIGGER
SWEEP
RESET
Figure 3-49 . Variable persistence
storage mode timing diagram .
T heory l
o
f Op eratio n--7834
1988-74
3-69
FGK
1
1
1
I
I HI
^ .~ .
I
1
1
I
ERASE
I
I
LO
TSFR
HI
LO LO
PREP
LO
I
FAST PREP
I
MULTI
Ht
I HI
LO
I
LO 1
I
I
I
I
W
1 I
HI 1 I
LO
I
II LO
X
LO I I
V
I
LO
1
I
I
I
I
Z
I
I
I
I
I
I
I
IHI
1 HI
STORAGE
LO
I I LO Lo
SWEEP GATE I
I
I
I
I I
I
I
I
I
I HI
I
I
I
I I
I I
I
I
I
STORAGE
LO
I
1
I LO I
LOCKOUT
I
SINGLE SWEEP
HI I
I I
I HI HI
RESET I
AUTO
Y ~ .a .
I
SINGLE SWEEP I
I I
I
I
I
RESET
I
1
I
1 I 1
I I
I I I
I
I
1
1
I
V
I
I
+75 V I
+44 V
y-- .
.~ .~,~
. .-®
. ... .-~
+44 V
I
I
+50 V
+45
V
- -
___1!i _ v
+50 V
NO V +40 V
I
+74 V
+~
V
+20
V
I
0 V
I
1
1
I +soo v
I
I
PREP LEVEL I
I
0 V TO 12 V ABOVE
I
OP LEVEL I
0V
VP OP
TO
LEVEL +15 V~ VPOP L EVEL 0 V TO+ 15 V
I
I
+125 V
I
I
+100 V +100 V
+132 V
.v .
_ I
+1WV
I