Heathkit W-5M User Manual

)
Select
the two
lengths of
green
transformer
lead
cut
in
the
first step
of
the
wiring instruc-
tions.
Cut
each
lead
to a
length of
4
1/2"
and strip
and tin all
four ends.
Offset the
ends
about
3/4"
and twist
the two leads
together.
(See
Figure
14.)
'sjf-s
)
At
one
end
of
this
pair, connect the
longer
lead
to
V4-2 (S).
...(
)
Connect
the
adjacent
lead
to
V4-7 (S).
O
)
At
the
other
end
of
this
pair, connect
the
shorter lead to
V3-2
(NS).
"‘t-O
Connect
the
adjacent lead
to
V3-7 (NS).
C
)
Cut a
pair of
6"
lengths
of hookup wire,
strip
all four ends and
twist
the
two leads
firmly
together.
'~~(
"
)
At
one
end of this
pair,
connect either
lead
to
V3-2 (S)
and
the
adjacent
lead
to
V3-7 (S).
(~
)
Dress
the pair
along the chassis
bend,
under
socket
AA
and up the left side
of AA.
Connect
either
lead
to
AA1
(NS)
and the
adjacent
lead to
AA2 (NS).
'""f-.
)
In
the same
fashion, form a
7"
long twisted
pair of hookup
wire.
Strip
all four
ends. At
one end
of
this
pair,
connect either
lead to AA1
(S)
and the
adjacent
lead to
AA2
(S).
(
)
Dress
this
pair down
along the
left side
of socket
AA
to the
chassis, along the
chassis
bend
to
the
left and
directly up to
socket
V2.
At
the
socket,
connect either
lead
to
V2-9
(NS).
Connect
the
other
lead
through
V2-4
(NS)
to
V2-5 (S).
t'")
Cut
and strip a
pair of 3
1/2"
lengths of hookup
wire. Offset
the
ends
about
3/4"
and
twist
the two
leads
together
as
before. (See
Figure
14.)
At
one end
of
this
pair,
connect the
lon-
ger
lead
to
V2-9
(S)
and
the adjacent
shorter lead to
V2-4 (S).
At
the
other
end
of this
pair, connect the
shorter wire
to
VI
-9
(S).
Connect
the
adjacent
longer lead
through
VI
-5
(NS)
to
VI
-4
(S).
Now
solder
VI
-5.
'T
)
Connect
a
wire
from
socket
AA7
(S)
to
AC
outlet
DD2 (S).
)
Connect
a wire
from
AA8
(S)
to
AC
outlet
CC1 (NS).
X"
)
Connect
a
short bare wire
from
CC1
(NS)
to
DDl
(S).
"f~)
Using
bare
wire and
sleeving,
connect
CC2
(NS)
to fuse
holder
Figure 14
EEl
(S).
'(
)
Connect a wire
from
AA6
(S)
to
EE2
(S).
~
(~
)
Connect
a wire from AA5
(S)
to
V5-5
(NS).
Dress
this wire
under
the
Spirashield
and the
green
twisted pair, as
shown
in Pictorial
1
.
//(/
)
Similarly,
run-
a wire
from
AA4
(S)
to
G
(NS).
~f )
Connect
a
bare
wire
from
AA3
(NS)
to
Z4
(NS).
(
)
Connect
a
wire from Z4
(S)
to
the phono
connector
Y2 (NS).
“
(
-
)
Connect one lead
of
a
0.1
pfd
200
volt condenser
to
AA3 (S)
(use
sleeving).
Connect
the other
lead of this
condenser
to terminal strip
X4
(NS).
NOTE:
Some
condenser
manufacturers use
a
marking to
identify
the
"outside foil"
of
a
conden-
ser.
Usually this
appears
as a
band
around
the
body
of
the
component,
near
one
end.
In
this
instrument, this
distinction is
not important.
Therefore,
the
outside
foil
markings
may be
dis-
regarded
or if
the constructor has a
preference, he
may use
his
own judgment.
IMPORTANT:
THIS DOES
NOT REFER TO
MARKINGS
ON ELECTROLYTIC
CONDENSERS
WHERE POLAR-
ITY
IS
CRITICAL.
)
Connect
a
wire from
G
*
(NS)
on the filter condenser to
terminal strip
B2
(S).
Dress
this
lead
against the chassis.
T"')
Connect
a
wire
from
G (NS)
on the filter condenser
to
terminal
strip
C2 (NS).
Dress
this
lead
against the chassis.
(
)
Connect
a
wire
from
G
a
(NS)
on
the filter
condenser
to
terminal
strip
C6 (NS).
Dress
this
lead
against the chassis.
)
Using bare wire
and sleeving,
connect a lead
from
P3
(NS)
to
V5-2
(NS).
Sleeving
is used
on this lead
for
maximum
voltage breakdown
protection,
f
•-
)
Connect
a
wire
from
V5-3
(NS)
to
terminal
strip
Q2
(NS).
(
)
Connect
a wire
from filter
condenser
H
a
(NS)
to
P2
(NS).
Page
18

Heathkit W-5M Specifications

General

Brand	Heathkit
Model	W-5M
Category	Amplifier
Language	English