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4.3.8
e)
Vary
the output voltage of
the
oscillator
so
that the
level
meter
of the
TF
2337A
reads
fiill
scale.
Note
this
reading
(E
in
the equation).
0
Connect
a 100
kn ±1%
resistor
in
a
series
with the input
to
the
TF
2337A.
Note
the
LEVEL METER
reading (V
in
the
equation).
g)
Input resistance {R
input)
of
the
TF
2337A
is
given as
follows
:
„
Vo
R
input =
E
-
V
^
^
h)
The
input
resistance
of the
TF
2337A
should be 100
kS2
±5%.
Input
Shunt
Capacitance
a)
Test equipment required
L
-
C meter
b)
Set the
controls of the
TF
2337A
as follows
;
-
Level range switch
-
0.3
V
c)
Connect
the
L
-
C
meter
to
the input
terminals
of the
TF
2337A.
Measure
the input
capacitance which should
be
less than 70
pF.
22
TF
2337A
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