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P':5, V
r
f
-
V
17
7
30 VPP
PIN I, V1(9
14.5
I5VPP
'''RIATION BARELY DISCERNED)
PIN 5, VIII
•••
PIN5, V109
JUNCTION
01.30 0131
!
•-•
•ro
,
AM,
•ie
5
1
6
60VPP
JI01, JI02 WAVEFORM SAME AS ABOVE
BUT AMPLITUDES
WERE 1.4, 1.3, 1.25 VPP
•••••
17 : 8
20VPP
L.
10
74V PP
\P\: „ T y r ) ,
(VA'
BARE:. I/ DISCERNABLE)
PIN 5 8: 6, V 112
12.5
a
SINE WAVE
(NO VARIATION)
PIN I, Vi08
PIN 5
1
VI(.)8
/
«
"N
•-•
r
1-•
V
Li
(F--'URE SINE WAVE)
••••
1
17V PP
t".
SS
PIN 5
1
V I 10
PIN
I, VI
II
t.
toe
65
1
67
e
VPP
.J
s.•
e.e
••1>
30
47'1PP
I8VPP
SINE WAVE
(NO VARIATION)
NOTE:
TO MAKE THE WAVEFORM MEASUREMENTS SHOWN ON THIS DRAWING, A MODEL 524AC
TEXTRONIX SCOPE WAS USED.
AN
ATTENUATOR PROBE WAS USED
WHICH REDUCED
CAPACITY.
FREQUENCY OF THE UNIT UNDER TEST WAS 88.1 MC.
IN
EACH
CASE
THE STAGE UNDER TEST HAD TO BE RETURNED
WHEN THE
PROBE WAS
CONNECTED.
IT MAY BE IMPOSSIBLE
TO
RE'RESONATE
THE CIRCUIT
UNDER TEST
IF
THE EXCITER IS TUNED UP NEAR THE HIGH END OF THE BAND.
IF AN UNCALIBRATED
SCOPE IS USED, IT MAY BE
CALIBRATED
BY USING
FILAMENT VOLTAGE TO SET A REFERENCE.
PEAK TO PEAK VOLTAGE EQUALS
2.8 X RMS
VALUE.
6.3 VAC
THEN
EQUALS
17.5 VPP.
IT WAS
IMPOSSIBLE
TO SYNC SCOPE AFTER
VI12.
TYPICAL
WAVEFORMS
OF
STAGES
V107 THROUGH
V112,
M6095
EXCITER
826
7990 001
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