Heathkit SB-201 - Page 33

Page 32
=
(egurarsarr]
:
6-32
x
3/8"
FLAT
HEAD
SCREW
ANGLE
BRACKET
ee
ee
|:
Pe
CHASSIS
6-32 NUT
Detail 8
NOTE:
When
soldering
leads
to
the
RF
pickup
ele-
ments
in
the
next
four
steps,
slide
the
plastic
spacer
away
from
the
area
being
soldered.
Then,
reposition
the
spacer
after
the
connection
has
cooled
to
prevent
melting
the
spacers.
Be
sure
to
connect
the
compo-
nent
leads
to
the
proper
RF
pickup
element.
( )
Connect
a
1009
(brown-black-brown)
resistor
from
#1
on
the
RF
pickup
element
(S-1)
to
sol-
der
lug
R
(S-1).
Connect
the
resistor
lead
at
the
very
end
of
the
RF
pickup
element.
Position
the
resistor
as
shown.
CAUTION:
When
soldering
the
leads
of
the
small
silicon
and
crystal
diodes,
grip
the
lead
between
the
connection
and
the
body
of
the
diode
with
a
pair
of
long-nose
pliers.
This
will
protect
the
diodes
from
heat
damage.
By
placing
a
rubber
band
around
the
handles
of
the
pliers
and
clipping
the
pliers
onto
the
diode
Jead,
you
will
have
both
hands
free
for
solder-
ing.
( )
Cut
both
leads
of
a
crystal
diode
(brown-white-
brown)
to
1/2”.
Connect
the
cathode
(color
band
end)
lead
to
lug
1
of
terminal
strip
Q
(S-3)
and
the
other
lead
at
#2
of
the
RF
pickup
element
(S-1).
Be
sure
the
diode
lead
is
positioned
5/8”
from
the
end
of
the
RF
pickup
element.
o%*%%Y%y*%
1
GNCHES)
2
3
4/8
,
3/8)
5/8,
7/8
o
6s
1
(CM)
2
3
4
5
6
7
8
({)
Connect
a
100
2
(brown-black-brown)
resistor
from
#4
of
the
RF
pickup
element
(S-1)
to
the
solder
lug
M
(S-2).
Connect
the
resistor
lead
at
the
very
end
of
the
RF
pickup
element.
Position
the
resistor
as
shown.
(
uv
Cut
both
leads
of
a
crystal
diode
(brown-white-
brown)
to
5/8”.
Connect
the
cathode
(color
band
end)
lead
to
lug
3
of
terminal
strip
N
(S-3)
and
the
other
lead
at
#3
of
the
RF
pickup
element
/
(S-1).
Be
sure
the
diode
lead
is
positioned
5/8”
J
from
the
end
of
the
RF
pickup
element.
(“)
Connect
a
465
15
watt
resistor
from
lug
5
of
j
terminal
strip
Q
(S-2)
to
the
lug
of
terminal
strip
| V (S-2).
(\/)
Connect
a
2000
2
7
watt
resistor
from
lug
2
of
terminal
strip
N
(S-6)
to
lug
3
of
relay
L
(S-2).
Position
the
body
of
the
resistor
down
against
the chassis.
(
).
Refer
to
Detail
8C
and
install
the
angle
brackets
j
using
6-32
x
3/8”
flat
head
hardware.
}
(
\)
Remove
the
protective
backing
from
a
DANGER
label
and
press
it
firmly
in
place
on
the
under-
side
of
the
chassis
as
shown.
This
completes
the
wiring
under
the
chassis.
Check
to
see
that
all
connections
are
soldered.
Shake
out
any
wire
clippings
and
solder
splashes.
10
1
12
13
14
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417