Technical data
CONTROL
SIGNALS
LOMJDIO
BMWO
S-TK
.;
V.
OUTPUTS-
an
an
ram
0
ma
nmi
KEYBOARD
OUTPUT
The
KBD
OUTPUT
(keyboard
output)
is
a
dual
function
jack.
It
can
function
as
an
output
only
when
the
KBD
&
TRIG
EXT
OUTPUT
switch
on
the
front
panel
is
in
either
the
ON,
or
ON
+
RIBBON
position.
The
KBD
OUTPUT
jack
can
function
as
an
input
only
when
its
associated
attenuator
is
in
the
fully
counterclockwise
"click"
position.
The
keyboard
of
the
Multimoog
generates
a
control
signal
that
normally
controls
the
pitch
of
the
oscillators
and
the
cutoff
frequency
of
the
filter.
This
keyboard
control
signal
is
available
for
external
use
at
the
KBD
OUTPUT
jack.
You
can
usetheMultimoog's
keyboard
to
control
external
(voltage-controlled)
devices.
The
use
of
the
KBD
OUTPUT
does
not
interfere
with
normal
internal
keyboard
control.
The
KBD
OUTPUT
provides
the
control
signal
from
only
the
keyboard,
or
both
the
keyboard
and
the
PITCH
ribbon,
according
to
the
setting
of
the
KBD
&
TRIG
EXT
OUTPUT
switch
on
the
front
panel.
Other
front
panel
controls
have
no
effect
on
the
KBD
OUTPUT,
even
those
that
affect
pitch
internally,
such
as
OCTAVE,
WIDE
FREQ,
DOUBLING,
and
FINE
TUNE
on
the
rear
panel.
However,
since
the
GLIDE
control
affects
keyboard
responses,
GLIDE
settings
will
affect
the
KBD
OUTPUT
signal.
When
the
lowest
key
is
depressed,
a
signal
of
zero
volts
is
produced
at
the
KBD
OUTPUT;
each
ascending
half-step
on
the
keyboard
adds
an
increment
of
+1/12
volt
to
the
signal
level
(nominally
62
one
volt
per
octave).
Internally,
precise
calibration
yields
precise
diatonic
(twelve
tones
to
the
octave)
keyboard
control
of
the
oscillators.
For
external
calibration,
an
attenuator
with
a
voltage
span
±10%
is
provided
(above
jack).
Once
the
keyboard
control
signal
is
brought
"outside"
using
the
KBD
OUTPUT,
you
can
produce
some
interesting
musical
results.
For
instance,
the
KBD
OUTPUT
can
be
connected
to
the
control
input
of
a
Moog
921
Voltage
Controlled
Oscillator
to
make
the
921
"track"
the
keyboard
of
the
Multimoog
and
play
in
unison
with
its
oscillators.
If
the
external
oscillator
is
tuned
at
an
interval
to
the
oscillators,
parallel
intervals
will
be
produced
when
you
play
the
keyboard.
Suppose
we
invert,
or
electrically
turn
the
KBD
OUTPUT
signal
upside
down.
An
external
oscillator
controlled
with
this
inverted
signal
would
play
higher
as
you
play
lower
on
the
Multimoog's
keyboard!
If
you
attenuate
(lessen)
the
signal
by
half
an
externally
controlled
oscillator
would
play
quarter
tones
when
half
steps
are
played
on
the
keyboard.
Although
any
number
of
voltage
controlled
modules
may
be
controlled
from
the
Multimoog's
keyboard
using the
KBD
OUTPUT,
an
important
concept
should
be
understood.
The
keyboard
of
any
monophonic
(single
voice)
synthesizer
like
the
Multimoog
produces
only
one
control
signal,
regardless
of
how
many
keys are
depressed.
When
several
keys
are
depressed
on
the
Multimoog,
the
r