Heathkit SW-717 Assembly

(
)
Push
the
AN L switch
(on
the rear
panel)
to OFF.
(
)
Preset the f ront
panel
controls as
follows:
(
)
Tune in
a
station of
known
frequency near the
high
end of Band A.
Adjust C32 until the station
is received
properly
when the
main tuning
indicator
shows
the
station's correct
frequency.
As there
will be
some
interaction, repeat
the
adjustment
of L1
and C32
until
the frequencies
of both
stations
are
correctly
shown.
NOTE: The tuning
indicator
will be
nearly
correct on
the
other
three bands,
but
adjustment
to a station
of
known
frequency is
preferable.
In the
United
States,
Federal
Bureau of
Standards
station
WWV
at
Ft.
Collins,
Colorado
transmits
on
frequencies
of
2.5,5,
10, 15, 20,
and 25
MHz.
lt
can be
identified
by
announcements
periodically.
At other times
it transmits
a
variety of tones, often
with a
pulse
each second.
In Canada, the
Dominion
Observatory
station
CHU
transmits
continuously
on
frequencies of 3.330,
7'335
and
14,670
MHz. Transmissions
consist
of a
pulse
each
second
with time and station
announcements
each minute
in
French
and
English.
lf
you
know
an amateur
radio operator,
he may be
able
to
transmit a
test signal which
will
enable
you
to calibrate
your
receiver on at
least one
frequency
in each of bands
B, C,
and
D.
Shortwave
broadcast stations
may be.
used
for calibration
when
their
frequencies are
known.
Your local
library
probably
has
a
copy of
"World
Radio TV
Handbook"
(or
a
similar
publication)
which
lists station
frequencies'
This
handbook is available
from the
Heath Company
as
Model
GDP-315.
The
"Alignment
Chart"
on
Page 46 tells
you
which
coils and
capacitors to adjust
for each band.
Utilize
the same
principles
described
for Band
A
-
adjust
coils
for the
low
end of
the band and
adjust
trimmer
capacitors
for
the
high
end of the band.
c32
c33
c34
c35
c36
c37
c39
3t8
114
U+
tt+
1t8
1t8
1lA
VOLUME:
BAND:
MODE:
BFO:
off
A
AM
off
()
()
()
BANDSPBEAD
TUNING:
0
(centered)
MAIN TUNING: 550
Temporarily
push
the connectors
on the black
and
white twisted
pair
onto
the Nvo speaker
lugs.
Plug
in the
Receiver,
turn it on,
and
tune in
a radio
station
of known
frequency
near the
low end
of band
A.
Refer to
Inset Drawing
#1
and
insert the shorter
end
of
the alignment
tool
into
the
core of Ll.
Adjust the
core
until
the
main tuning
indicator shows
the correct
frequency of the station
on the tuning scale.
lr
ALIGNMENT WITHOUT
INSTRUMENTS
(
)
Refer
to
Figure
2
(fold-out
from Page 40)
and turn all
trimmer
capacitors clockwise
until they
are
just
snug.
Then
turn
each one counterclockwise
the
following
number
of
turns:
Trimmer
Turns
Counterclockwise

Heathkit SW-717 Specifications

General

Brand	Heathkit
Model	SW-717
Category	Receiver
Language	English