Advertisement
of the
transformer.
Starting at
zero
volts, slowly
increase
the AC voltage until you read 250
volts.
Do
not change
the voltage
setting
until you have
completed
the
measure-
ments in step
3.
3. Connect the
capacitor
(drawn
as
a rsctanqula
r box marked
L OR C) as shown in Figure
3.
To
avoid an
electric shock,
disconnect the variable supply from the power source while
working in the
circuit, but
do not
change the voltage setting.
Note the voltage on the 250 volt
scale.
Use
TABLE
3
to
determine the capacitance 'in the circuit from
the voltage
read on
the meter.
You can
interpolate
between values if
the actual voltage read from the meter is not
indicated on
the
table.
TABLE 3.
VOLTAGE TO CAPACITANCE CONVERSION
(.0001
MFD TO .05 MFD) (100
PF-50,OOO
PF)
RMS VOLTS
CAPACI-
RMSVOLTS
CAPACI-
TANCE (pF)
TANCE (pF)
2.25
100
59
2600
4.5
200
64
2800
6.75
300
68
3000
9.25
400
78.
3500
11.8
500
88
4000
14
600
97.5
4500
16
700
106
5000
18.1
800
112
5500
21
900
124
6000
23.3
1000
130
6500
27.7
1200
137
7000
32.7
1400
151
8000
37
1600
161
9000
42
1800
172
10K
46.2
2000
221
20K
51
2200
236
30K
55
2400
245
50K
- 14-
-15-
SCHEMATIC
DIAGRAM
OFF
250&
125
r
iooo
500
50
25
Al
5M
0
C
10
5
R2
1M
VR2
R3
187.5K
3K
V
2.5 1.25
L
.25.125
R4
56.25K
r
so,
']
A20
5m 2.5m
15K
g
50m
25m
A
soo-
250m
A8
0.48
LSAT.
CHEC
A9
CAL.
r
1000
500
A
250
125
C
50
25
V
L
10
5
A13
90-96
A14
950
A15
17.7K
A16
n
o-----J
350K
- 430K
~'I~-t--"
A28
L...
__
!l__-'9'-'V'--.J
A25
18.75M
900
A17
110K
i
I
R23
A27
0.84
665K
A24
9.5
o
eCOM
lQOOV DC
Advertisement
