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FEATU RES
Microphone capsule
The
C-48
utilizes
two
low
impedance back-plates
in the front
and
rear
of
the
diaphragm
that
can
pick
up
even
low
level transient
sounds.
Directivity selector switch
Omni-directional, uni-directional
and
bi-directional
characteristics
can
be
selected as
required.
Pad
selector switch
This
switch
reduces the
output
level
of
the microphone
to
prevent
any overload
of the
impedance
translator resulting
f
rom
the pick
up
of
extremely high level sound sources.
Two-way powering system
The
C-48
operates
with
either
an
internal battery
or
an
external
power supply.
LED
indicator
The
LED
directivity indicator shows
the
selected
directivity,
whether
the
power
is
ON
or
OFF,
and
the
battery condition.
Microphone
construction
By
the
use
of
heavy
zinc
and
aluminum
die
castings
in
its construc-
tion, the
C-48
avoids any resonance effects.
FET amp
This
microphone
employs
a
high
impedance,
low noise
FET
amplifier,
so even low
volume signals can
be
faithfully
reproduced.
TABLE OF CONTENTS
PRECAUTIONS
.
The
microphone should
never
be
dropped
orsubjected
to anyex-
cessive
shock.
o
Keep
the
microphone
away from
extremely
high
temperatures
(above
60'C or
140'F).
o
Connect
the
microphone cable firmly.
a
The
microphone and recording instruments should
be
turned
on
thirty
minutes
before
they
are
actually
used.
This
assures stable
performance
of the
equipment.
.*,
2
3
!
Precautions
Parts
identification
.
.
Powersources
and
operation..,,
.
Battery operation
External power supply
Adiustment of selector switches.
.
Tone selector switch
Directivity
selector switch
Pad
selector switch
Specif
ications
Frequency response
Directivity
Dimensions
Block
diagram
5
5
14
14
15
15
2
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