µVCA Manual
v1.00
Controls
1.
CV
A
-
Sets
the
amount
of
attenuation
for
the
CV
A
input.
When
fully
clockwise
the
CV
input
is
unattenuated.
When
fully
counter-clockwise
the
CV
input
has
no
effect.
The
brightness
of
the
LED
to
the
right
of
the
attenuator
varies
according
to
the
level
of
the
resulting
CV.
1.
BIAS
A
-
Sets
the
initial
level
of
amplifier
A
before
CV
is
applied.
The
maximum
bias
is
5V
which
provides
a
gain
of
1.
2.
EXP-LIN
A
-
Sets
the
response
curve
of
amplifier
A.
Linear
when
fully
counter-clockwise
and
exponential
when
fully
clockwise.
3.
CV
B
-
Same
as
CV
A
but
for
channel
B.
4.
BIAS
B
-
Same
as
BIAS
A
but
for
channel
B.
5.
EXP-LIN
B
-
Same
as
EXP-LIN
A
but
for
channel
B.
Note
that
prior
to
fall
2015
the
BIAS
and
CV
knob
positions
were
reversed
but
their
functionality
was
the
same.
Inputs and Outputs
A.
CV
A
-
Control
voltage
input
for
the
level
of
amplifier
A.
Summed
with
the
BIAS
A
control.
Voltages
above
5
V
will
result
in
a
gain
greater
than
1.
B.
IN
A
-
Input
signal
for
amplifier
A.
This
is
a
direct
coupled
input
so
DC
or
AC
signals
can
be
fed
here.
C.
OUT
A
-
Output
signal
for
amplifier
A.
D.
CV
B
-
Control
voltage
input
for
the
level
of
amplifier
B.
Summer
with
the
BIAS
B
control.
Voltages
above
5
V
will
result
in
a
gain
greater
than
1.
E.
IN
B
-
Input
signal
for
amplifier
B.
This
is
a
direct
coupled
input
so
DC
or
AC
signals
can
be
fed
here.
F.
OUT
B
-
Output
signal
for
amplifier
B.
As
of
the
fall
2015
model
OUT
A
is
normalled
to
be
mixed
into
this
output
as
long
as
nothing
is
patched
in
OUT
A.
This
means
you
can
use
the
module
as
a
simple
two
channel
mixer.
Page
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