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'
shown
on
the
wiring
diagram,
figure 4.
(On
those
units
having
two
transformers, connect these leads
to
the
transformer
terminals
which
supply
the
other
lamps.)
Calibrated
Scale
To
install a calibrated scale, place
the
left
end
of
the
scale
(front
view)
over
the
scale
pivot
pin
in
the
end
bracket, pressing
the
scale
and
pivot
to
the
left;
align
the
right
end
of
the
scale
with
the
pivot
pin
in
the
right
support
and
release
the
pressure
to
al-
low
the
pivots
to
engage
the
scale.
Rotate
the
scale
to
secure
the
desired calibration.
To
remove a scale,
press
to
the
left
(front
view)
and
lift
it
out,
right
end
first.
The
scales
are
marked
so
that
the
operator
may
easily
set
the
indicator
for
the
required
length
of
recording.
For
example,
if
a five-minute
recording
is
required,
start
the
cut
with
the
indicator
set
at
5
and
continue
to
cut
until
the
indicator
reaches 0.
Make
certain
that
the
scale
showing
under
the
indicator
agrees
with
the
speed,
direction
of
feed,
and
number
of
lines
per
inch. \
Refer
to
the
instruction
book
on
the
recording
bead
used
for
the
approximate
playing
rime for
the
various numbers
of
lines
per
inch
and
turntable
speeds.
MountinCJ
of
Recorder
Head
Mount
the
MI-11850-C Recorder
Head
on
the
cradle
beneath
the
carriage
casting
using
the
two
thumb
screws furnished
with
the
recorder. Connect
the
recorder-head leads
to
the
plug
as
shown
on
the
schematic diagram, figure
3.
Insert
the
plug
into
the
receptacle
on
the
recorder base.
Automatic
RecordinCJ
Equalizer
A
slit
tube
above
the
feed-screw
tube
is designed
to
mount
an
MI-11100 Automatic
Recording
Equal-
izer.
This
equalizer
is
not
supplied
with
the
recorder,
but
may
be
purchased as
an
accessory.
This
unit
com-
pensates for high-frequency loss as
the
cutter
nears
the
center
of
the
record. A
plug
is
mounted
in
the
right
end
of
the
rear
support
tube
ready
for
connec-
tion
with
the
equalizer.
Wiring
from
this
plug
to
the
terminal
board
is already installed.
Refer
to
the
instruction
book
on
the
equalizer
for
further
com-
plete
installation instructions.
Advance Ball
Kit
To
control
the
depth
of
the
recording
groove
ac-
cuntely,
an
MI-11851 Advance
Ball
Kit
is recom-
5
mended
for use
with
the
MI-11850-C Recorder
Head
when
cutting
wax
discs
or
when
vibration
problems
are
serious.
Suction Nozzle
for
RemovinCJ
Record Shavin91
Fastened
to
the
recorder-head
carriage
is a suction
nozzle
which
terminates just above
the
record.
This
nozzle may
be
connected
to
Recording
Suction
Equipment,
MI-4922,
by
means
of
Hose
and
Cou-
pling
Kit,
MI-4923.
This
method
for
removing
the
shavings
is
especially useful
when
recording from
outside-in
to
prevent
shavings
from
piling
up
ahead
of
the
stylus
and
impairing
its operation.
This
equip-
ment
is
not
included as a
part
of
the
recorder,
but
may
be
ordered
separately.
Pickup and
Arm
A removable
plate
is
provided
on
the
recorder
base
for
mounting
an
MI-11899
Pickup
and
Ann
(not
supplied
with
recorder).
A receptacle
on
t.
be
base is already connected
to
the
terminal board. See
scheruatic
diagram,
figure
3.
A
plug
button
on
the
recorder base covers
an
opening
to
be
used
to
mount
the
arm
rest furnished
with
the
MI-11899.
For
com-
plete
installation instructions,
refer
to
the
instruc-
tion
book
on
the
pickup.
Recommended Associated Equipment
In
addition
to
the
equipment
mentioned
in
the
preceding
paragraphs,
the
following
units may
be
used
with
the
recorder:
1. Orthacoustic Equalizer, MI-4916
2.
Sapphire
Stylus (90-degrees), MI-4878-C
3.
Sapphire
Stylus (70-degrees), MI-4842
4. Steel Stylus, MI-4879-A
5.
Amplifier
(Type
82-Cl),
MI-11209-B
6. Amplifier
(Type
BA-4A),
MI-11223
7. Standard
Cutter
Head,
MI-11853
OPERATION
RecordinCJ
Procedure
For
detailed instructions
covering
recording
pro-
cedure
including
microscope use,
refer
to
the
in-
struction
book
on
the
recorder
head
(IB-24340).
Controls Provided
See figure 5 for
the
location
of
the
recording
controls.
Routine Operation
After
all connections
have
been
made
to
external
