6
BEFORE STARTING TO RECORD
GENERAL
• Two
separate
and
independent
input channels
are
provided
: MICRO-
PHONE
and
LINE
INPUT
. Each
has
i
ts
own
record level control. These
two inputs may
be
"mixed" for simultaneous recording from two sources.
• Recordings
can
be
made
on either
new
or
previously
recorded
tape
.
Any previous recording will
be
erased
automatically
.
• Matching plugs for the MICROPHONE
connector
(14)
and
the
LINE
INPUT
connector
(19.),
are
supplied. Attach
each
to the
owner
's shielded
cable
,
as
shown.
...
WITH
MICROPHONE
SELECTION OF
MICROPHONE
• Connect
any
high
impedance
mi
crophone
lo
the MICROPHONE con-
nector (
14)
. Follow microphone
manufacturer
's recommendations
on
cable
type
and
length.
• Any high
impedance
microphone may
be
used, but
the
quality
of
recording
depends
on the quality of the microphone selected.
• Conversion to
accommodate
a
low
impedance
microphone
can
be
made
with
an
accessory microphone transformer (Ampex Low Imped-
ance
Conversion Kit,
Catalog
No
. 9359,
or
UTC
Type A-
11
).
Space
for
installing the transformer
is
provided
insi
de
of
the machine. (See Model
600-
Maintenance
Manual).
TO ATTACH
CABLE
Use
sh
i
elded
cable
of
proper
length
and
attach
to microphone con-
nector,
as
i
ndicated
.
-
-----------------~~~::::::::::]
- FROM MICROPHONE
AMPEX
liHD
ID
.
..
WITH
.
RADIO
OR
PHONOGRAPH
SELECTION
OF
INPUT
• The "
LINE
INPUT"
connector
(19)
may
be
connected
to the
output
of
a
tuner,
phonograph
record
player
or
another
tape
recorder.
• If the tuner
has
more
than
one
output,
use
the
one
marked "Detector."
• Use the
output
of
almost
any
phonograph
having a crystal pickup.
If
the
phonograph
has
a
magnetic
or
variable
reluctance pickup, use
the
output
of
its
preamplifier
rather
than
that
of
the
pickup. Attention should
be
given to
equalizing
the
pickup used so
as
to
give a "flat" input to
the
recorder.
See
the
pickup
manufacturer
's recommendations.
TO ATTACH
CABLE
Use
cable
of
proper
length
and
attach
to line input connector,
as
in-
dicated
.
..::::::::::======:::::,-iii~:::--
- FROM RADIO,
PHONOGRAPH,
ETC
.
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