*
CONCENTRICALLY
MOUNTED
IMPORTANT
WAVEFORMS ARE
IDEALIZED
RUT
CLOSELY APPROXIMATE
THOSE
TO
BE FOUND
IN
THIS
INSTRUMENT
PROVIDED
CONTROLS
ARE
SET
AS
INDICATED
BELOW
AND
ON
EACH
SCHEMATIC.
VOLTAGE READINGS,
IF
TAKEN
WITH
A VTVM,
WILL BE
WITHIN
*
10%
OF
THE INDICATED
VALUE.
BEFORE
STARTING
TO
CHECK
THIS INSTRUMENT THE
FOLLOWING
CONTROLS
SHOULD
BE
SET
AND
NOT
DISTURBED
UNLESS
OTHERWISE
NOTED
ON
SCHEMATICS
BEING
USED.
RE
TURN
CONTROLS
TO
THE
POSITIONS
LISTED
BELOW
BEFORE
MOVING
TO
THE
NEXT
SCHEMATIC.
SQUARE-WAVE
CALIBRATOR
.....................
OFF
HORIZONTAL
DISPLAY
................................
NORM
VARIABLE
(TIME/CM)
...................................
CW
(CALIBRATED)
TIME/CM
........................................................
1
mSEC
TRIGGERING
MODE
...................................
AC
TRIGGER
SLOPE
............................................
-LINE
TRIGGERING
LEVEL
......................................
CENTERED
STABILITY
........................................................
PRESET
r
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
SCHMITT TRIGGER
(TIME-BA5E
GEN.DIAG.)
SW5
*
(RED KNOB)
-\ TRIGGER
3ELECT0
r
\
-
TRIGGER
—INPUT
-----
AMPLIFIER - -----
WAVEFORMS
and
VOLTAGE READINGS
WERE OBTAINED WITHC0NTR0L5 SET AS FOLLOWS:
515
A
A
TIME
BASE. TRIG.
SEE
PARTS
LIST
FOR
EARLIER
VALUES
AND
S/N
CHANGES
OF
PARTS
MARKED
--------
■F-260V'
+300 /
+300V
+100
r
SYNC
IQO
K.
220K
TRIG.
SENS.
TZQK.
Z.2M
470
K
AUTO
tlF
SYNC
100 K.
+/00V
IOOIC
~ &2OR
-I50V
SW20
TO GRID, PIN 2, VHOA
MULTIVIBRATOR
(TIME-BASE
GEN.
DI AG.)
I
-------------- -
-
I
TRIGGER
SELECTOR)------
* (BLACK
KNOB)
VIO
+I00V
AUTO
1/2
6DJ8
+
200
+295
V30£>
1/2 6DJ8 .
+ 295
+
275
TYPE.
5!5A
05C/LL05C0PE
AA
R36
I50F.
-150V
TRIGGERING
LEVEL
CENTERING
TRIGGERING LEVEL
FOR
WAVEFORMS..................................... CENTERED
FOR UPPER VOLTAGE. READINGS................... CCW
FOR
LOWER VOLTAGE READINGS, . ..................CW
SEE ALSO
IMPORTANT NOTE ON THIS DIAGRAM
TIML-BASE.
TRIGGER
-13
-61
K
F