Wavetek 143 - Page 18

SQUARE WAVE
TO TRIG/PULSE
== = ==]
GENERATOR BOARD
SQUARE
BOARD
SYNC
" AMPL
FRE
Зүү
асу
| AMPLIFIER
V
FREQUENCY
VERNIER | — DIAL
BUFFER
η,
|
L
HYSTERESIS
SWITCH
V POSITIVE
CURRENT
SOURCE pa
vcG
|
TRIGGER
CIE
° COMPEN-
IN
SYMMETRY
EATEN
AMPL
CONTROL Эс START/ FREQ
STOP біле
NEGATIVE DIODE
CURRENT CAPACI-
SOURCE TANCE
hd MULT
TIMING
(INTEGRATING)
= ET CAPACITOR
las —
| + | TRIG LEVEL
|
Y
TRIGGER
КЕ
TRIGGER
TRIGGER
START/STOP
N
SQUARING
CONTROL
Ge
τε
A
чє
жыш
ы
CIRCUIT
LOGIC
SQUARE Πι SYNC OUT SYNC
WAVE | ONE SHOT BUFFER 02 out
FROM
GENFRATOR +24
BOARD POWER -24
SUPPLY Б/Е |
+5
TRIG/PULSE BOARD
WAVE
SHAPER
Figure 4-1. Overall Block Diagram
4-0
PREAMP
ATTENUATION
VERNIER
V
FUNCTION
SELECTOR
DC
OFFSET
EXT
ο) DC
OFFSET
FUNCTION
ουτρυ 1 l OUT
O
AMP