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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