Heathkit SW-717 Assembly

Use the
point
of a
pen
knife
to open
up one end
of a
2"
length of metal braid.
Slide
this
end over
the
capacitor
mounting
lug at
AU
(S-1
).
Route the braid
under
the
terminal strip BF
to
point
BA on the circuit
board
(S-1).
Solder
the braid directly
to
the foil.
Make
sure
this braid does
not touch
any metal
on
the
terminal strip.
Use
the
point
of a
pen
knife
to open
up one end
of a
3" length
of metal braid. Slide
the braid
over the
capacitor
mounting lug at AT
(S-1
).
Solder
the other
end of the
braid to the three
solder
lugs AN,
AP, and
AR.
Use
the
point
of a
pen
knife
to open
up one
end
of a
1-3l4"
length
of
metal braid. Slide
the
braid over
lug 2
of terminal
strip X
on the
rear
chassis
apron
(S'1
L
Solder
the other
end of
the braid
directly
to the
circuit board
foil at
BB.
()
()
()
(
)
Open
up both
ends of a 1-1
14"
leng6h of
metal braid
with
a knife
point.
Slide
one end
of the braid
onto
solder
lug
AF
(S-1
),
and
the other
end over
the solder
lug on the rear
of
variable capacitor
G
(S-1
).
14A
(
)
Refer to
Detail 14A and
form a
twisted
pair
from two
11"
lengths
of red stranded
wire.
Remove
114"
ot
insulation
from the end
of each
wire.
Twist
the
fine
strands
together,
and melt
a small amount
of
solder
on
the ends
of each
wire.
(
)
Refer to
Detail 148 and,
at one
end of
the
twisted
pair,
connect
one wire
to lug
4
(S-1)
and
the other
wire to
lug
5
(S-1)
of control
B.
(
)
At the
other
end of
the twisted
pair,
connect
one
wire
to
lug 1
(NS)
and
the other
wire to
lug 2
(NS)
of (
)
terminal strip
AK, Route
these
wires
as shown,
NOTE:
When a wire
passes
through
a
connection
and
then
goes
to another
point,
as in
the
next step,
it will
count
as
two
wires
in
the
solder
instructions,
one
entering
and
one
leaving
the
connection.
),frk
Y
Detail
148
lf
this receiver
will be
used in
Canada,
these
instructions
for
wiring terminal
strip
AK must be followed
to comply with
Canadian standards.
So
the clearance between
lugs will
not
be
reduced,
all leads
to lugs 2 through 5 must be
wrapped at the top
of the solder
lug. Connections to lugs
'l
and 6
may be wrapped
around
the
side
away from lugs 2 or 5.
LUGS
2 THROUGH
5
LUG
LUG
i 0R
6 2 0R
5
(
)
Cut
a
2-1
14"
length of
yellow
hookup
wire
and
remove
all the insulation.
Save
the insulation
for
use
later.
(
)
Push the end
of the hookup
wire
through
lug 1
(S-2)
to
lug
2
(S-1
)
of dual
trimmer
capacitor
AH.
Connect
the
other end of
the wire
to solder
lug AG
(S-1
).
(
)
Connect
a
22O
Q
(red-red-brown)
resistor
from lug 1
(NS)
to lug
2
(NS)
of
terminal strip
BF.
TRANSISIOR
/./
#417-118
EMITTER*
LEAD
LEAD
CLIP OFF
THIS
LEAD
AS SHORT
AS POSSIBLT
Detail
t4C
Refer
to Detail
14C
and
prepare
two 2N3393
(#417-11
8)
transistors
as
shown.
(
)
Position one
of these
transistors
with
the
flat
side
toward the chassis,
Connect
the
emitter
lead
to
lug 3
(NS)
and
the base
lead
to lug 4
(NS)
of terminal
strip
BF.
o
3/a
1"
2"
3"
4"
5r' 6"

Heathkit SW-717 Specifications

General

Brand	Heathkit
Model	SW-717
Category	Receiver
Language	English