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43
PUSHBUTTON
ON/OFF
SWITCH:
DEPRESS
TO TURN
DIP
METER
ON.
PICKUP COIL
IL1
through
L7):
Color
coded
to
match
dial scales.
Used
with tuning
capacitor
C21
to
determine
resonant peaks
in
unknown
circuits
or
frequency
of
detected
RF
energy.
DIAL SCALE:
Color
coded
to
indicate
frequency range of
any one
of
7 pickup
coils.
Numerals
indicate
resonant frequencies
in
MHz.
TUNING
DIAL:
Varies
capacitance
of
variable capacitor
C21
to obtain resonant
dips
tor
peaks)
on
meter.
OSC
LEVEL
CONTROL:
Controls
sensitivity
of
oscillator
and
detector
circuits.
METER:
Indicates a
sharp dip
(or
peak)
when
dip
meter
coil
is
tuned
to
resonance
with
circuit
under
test.
Figure
2-1
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