HP 5245L - A21 FUNCTION CONTROL ASSEMBLY

ct c6
A2l FUNCTION
CONTROL
ASSEMBLY
rosz+s-6015)
GATING
SIGNAL
FROM
A?2el
+l3V
FROM A5(7)
-t5v
FROM A7(13)
IOMHz
SIGNAL
FROM
A35
FREQUENCY
TRIGGER
+
l3V
Rro
toK
cRt
cR7
Ril
roK
RATIO
HF
INPUT
FROM
A20(6)
RATIO
HF
INPUT
FROM
A20
(5)
SIGNAL
INPUT
FROM
Ate(6)
SIGNAL
INPUT
FROM
At9(5)
@
Q4
2N709
Q6
2N708
OV
PERIOD TRIGGER
lIlV
(3)
6.5V
cRz
CR8
Rt2
roK
Rt7
6200
R20
tooo
8V
Q3
2N709
@
t616.3V
LC2
J.orrr
ov
2
4
6
r3
OV
+l3v
(5)
+l3V
(3)
R2
t60
+t3v
(3)
R23
t80
cl:
47
c9
cR4
CRro
Rl4
loK
7V
Q2
2N708
EMITTER
FOLLOWER
9.
Q5
Q7
2N708
5
)
2
t4
t5
t2
t8
t3
2t
6
4
t3v
Evl
-t,v_
-5
+l3V
(3)
GATE
CONTROLS
(NOTE
2)
SELECTED
FREQ
TO A2
SELECTED
FREQ
FROM
A35
MULTIPLIED
PERIOD
SIGNAL
c4
.068t/F
8.5V
R8
5too
2N708
+
l3V
(3)
R24
r80
cl{
47(
)F
cro
30
R27
430
c5
t.ouF
c7
t.ouF
+
l3V
OV
ov
. MULTIPLIED
PERIOD TRIGGER
QI
t854-ool9
EMITTER
FOLLOWER
R35
ilo
ca*
.q t.
R25 I
43o
I
g.cv
cR3 CRg
Rr3
toK
,4+t3V
(3)
R7
Sroo
200
?
LEVEL I
ADJ
f
75V OV
3
-7-rnnr-+l3V
R3
zv
FROM
A55