Heathkit HA-14 User Manual

HEATHEIT
Page 5
PROPER
SOLDERING
TECHNIQUES
Only a small percentage of customers find it
necessary
to
return
equipment
for
factory
service,
By
far
the
largest
portion
of
mal-
functions
in
this
equipment
are
due
to
poor
or improper soldering,
if
terminals
are
bright
and
clean
andfree
of
wax,
frayed
insulation
and
other
foreign
substances,
no
difficulty
will
be
experienced
in
soldering,
Correctly
soldered
connections
are
essential
if
the
performance
engineered
into
a
kit
is
to
be
fully
realized,
If
you
are
a
beginner
with
no
experience
in
soldering,
a
half
hour's
practice
with
some
odd
lengths
of
wire
may
be
a
worth.
while
investment,
For
most
wiring,
a
25
to
100
watt
iron
or
its
equivalent
ina
soldering
gun
is
ver
y
satisfactor
ye
A
lower
wattage
iron
than
this
may
not
heat
the
connection
enough
to
flow
the
solder
smoothly,
Keep
the
iron
tip
clean
by
wiping
it
from
time
to
time
with
a
cloth,
CHASSIS
WIRING
AND
SOLDERING
1,
Unless
otherwise
indicated,
all
wire
used
is
the
type
with
colored
insulation
(hookup
wire),
In
preparing
a
length
of
hookup
wire,
1/4"
of
insulation
should
be
removed
from
each
end
unless
directed
otherwise
in
the
assembly
step,
2,
To
avoid
breaking
internal
connections
when
stripping
insulation
from
the
leads
of
trans-
formers
or
similar
components,
care
should
be
taken
not
to
pull
directly
on
the
lead,
In-
stead,
hold
the
lead
with
pliers
while
it
is
being
stripped,
3,
Leads
on
resistors,
capacitors,
and
similar
components
are
generally
much
longer
than
need
be
to
make
the
required
connections,
In
these
cases,
the
leads
should
be
cut
to
proper
length
before
the
part
is
installed,
In
general,
the
leads
should
be
just
long
enough
to
reach
their
terminating
points,
4,
7
Wherever
there
isa
possibility
of
bare
leads
shorting
to
other
parts
or
to
the
chassis,
the
leads
should
be
covered
with
insulating
sleeving.
Where
the
use
of
sleeving
is
spe-~
cifically
intended,
the
phrase
"use
sleeving"
is
included
in
the
associated
assembly
step,
In
any
case
where
there
is
the
pos-
sibility
of
an
unintentional
short
circuit,
sleeving
should
be
used,
Extra
sleeving
is
provided
for
this
purpose,
Crimp or bend the
lead (or leads) a-
round the terminal
to form a good joint
without relying on
solder for physical
strength, If the lead
is too largeto allow
bending or if the step
states that it is not
to be crimped, po-
sition it so that a
good solder con.
nection can still be
made,
Position
the
work,
if
possible,
so
that
gravity
will
help
to
keep
the
solder
where
you
want
t
it,
Place a flat side
of the soldering iron
tip against the joint
to be soldered un-
til it is heated suf.
ficiently to melt the
solder,

Heathkit HA-14 Specifications

General

Brand	Heathkit
Model	HA-14
Category	Amplifier
Language	English