Acousticon golden jubilee A-180 Manuale di istruzioni per l'uso - Pagina 5

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the vacuum tubes inside your transmittcr
and cause the
noise
and
speech
to blend,
making
it difficult
to understand
the
speech.
By turning
the
noise
suppressor
knob to
the
left,--
noise
and speech
a re
brough t to
your ear in normal proportions.
AIR CONDUCTION
If
you
have been fitted with
an
Air
R eceiver, you
were also
supplied with a
plastic Ear Mold
shaped
to fit your car.
(See fig
.
2
).
Th
e
Ear Mold
is
fastened
to the
Receiver
with a snap
action so
that a tight
seal
is
formed
around
the Receiver
opening.
It is
essential that the Ear Mold canal be kept
frce from
wax
at all
times
.
I t can be cleaned by washing in lukewarm
watcr
and
soap
and
by pulling
a pipe
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W1J..,SkltH,
A
cle
aner through the
canal.
Do not use
alcohol.
The
Ear Mold must
be
separated
from
the R eceiver before cleaning.
BONE CONDUCTION
Bone
conduction
is
the transmission of
sound through
the
bones
of
the
head di ­
rec
tly to the inner
ear.
If you
have
been
fitted with a
B~ne ~eceiver,
you
were
sup­
pIled wah a flexible H eadband
to hold the Receiver
against
the
mastoid bone
direc
tly behind
the
ear.
For
maximum
efficiency,
the
Bone Receiver must be held
firmly
against
the head
.
This
can
be done
with comfort if you
bend
the
Headband to conform
Fi9. 3
with the
shape of your
head.
You will also
observe
that by placing the
Bone
.Receiver
on
differen t
spots
on the
mastOJd
bone,
the result will vary. A little
experimenting will soon
enable
you to lo­
cate the
bes
t spot and determine the
bes
t
Headband shape for
your
particular case.
On
e
end of the Cord used with the
Bone
R eceiver has two small pins which fit into
holes in the R eceiver, as shown in figure 3.
~JdmJ~
............
.
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