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Heathkit TA-16 - Page 19

Heathkit TA-16
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Page
17
TURNS1
1
41--
1
INCH
-14
1
Detail
9B
( )
Refer
to
Detail
9B,
and
twist
a
14-1/2"
yel-
low
wire
and
a
14-1/2"
brown
wire
together
to
form
a
twisted
pair
that
has
approximately
one
and
a
half
turns
per
inch.
(_
)
At
either
end
of
this
twisted
pair,
connect
the
yellow
wire
to
lug
3
(S-1)
and
the
brown
wire
to
lug
1
(S-2)
of
switch
AH.
Place
the
free
end
of this
twisted
pair
through
grom-
met
M
to
be
connected
later.
( )
Starting
with
one
end
even,
twist
a
14"
red
wire
and
14-1/4"
brown
wire
together
to
form
a
twisted
pair,
having
approximately
one
and
a
half
turns
per
inch.
( )
At
the
even end
of
this
twistedpair,
connect
the
red
wire
to
lug
2
(S-1)
and
the
brown
wire
to
lug
5
(S-1)
of
switch
AH.
Place
the
free
end
of
this
twisted
pair
through
grommet
M
to
be
connected
later.
Refer
to
Pictorial
10
(fold-out
from
Page
16)
for the
following
steps.
CA
Refer
to
Detail
10A,
and
prepare
the
ends
of
a
28-3/4"
length
of
shielded
cable.
PREPARE
EACH
END
AS
SHOWN
1
1/2
-
S'
HIELD
LEAD
Detail
10A
1/4
-
, .
At
the
1-1/2"
prepared
end
of
this
cable,
place
a
1"
length
of
sleeving
over
the
shield
lead
and
connect
the
shield
lead
to
lug
2
of
phone
jack
AT
(S-1).
Connect
the
inner
lead
at
this
end
of
the
cable
to
lug
1
of
terminal
strip
AU
(NS).
Place
the
free
end
of
this
cable
through
grommet
L
to
be
connected
later.
Connect
a
22
KO
(red-red-orange)
resistor
from
lug
2
of
phono
socket
AS
(S-1) to
lug
1
of
terminal
strip
AU
(NS).
(.
)
Connect
a
22
Ks2
(red-red-orange)
re-
sistor
from
lug
1
of
phone
jack
AT
(S-1)
to
lug
1
of
terminal
strip
AU
(S-3).
( )
Prepare
the
following
lengths
of
colored
hookup
wire:
28-1/2"
yellow
26-1/4"
brown
25-3/4" red
25-1/2"
white
26-1/2"
orange
4-1/4"
white
6"
black
NOTE:
In
the
following
steps,
one end
of
each
wire
is
connected
to
a
control
on
the
control
panel.
The
other
end
of
each
wire
should be
placed
through
grommet
L
to
be
connected
later.
Position
each wire
as
shown
in
Pic-
torial
10.
( )
One
end
of
a
28-1/2"
yellow
wire
to
lug
3
of
control
AR
(S-1).
(,1
One
end
of
a
26-1/4"
brown
wire
to
lug
2
of
control
AP
(S-1).
( 4
One
end
of
a
25-3/4" red wire
to
lug
1
of
control
AP
(NS).
(
One
end
of
a
25-1/2"
white
wire
to
lug
2
of
control
AN
(S-1).
(
,)One
end
of
a
26-1/2"
orange
wire
to
lug
1
of
control
AN
(S-1).
( 4
Connect
a
4-1/4"
white
wire
from
lug
3
of
control
AN
(S-1) to
lug
2
of
control
AR
(NS).
(1
Connect
a
6"
black
wire
from
lug
1
of
control
AR
(S-1) to
solder
tab
W
(S-1).
(4
Connect
a
.01
ufd
Mylar
capacitor
between
lugs
1
(S-2)
and
3
(NS)
of
control
AP.
Po-
sition
the
banded
end
as
shown.
(
-')
Place
a
1/2"
length
of
sleeving
over each
lead
of
a
5600
S2
(green-blue-red)
re-
sistor.
Connect
this
resistor
from
lug
3
of
control
AP
(S-2) to
lug
2
of
control
AR
(S-2).

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