Heathkit SB-10 - Assembling the Panel

F
(|)Connectthecenterconductoroftheotherendofthecoaxtothecenterterminaloftheinput
'
n
;;
connector
(S1).
See
Pictorial
12'
(
v1
connect
the
shield
of
the
coax
to
the
ground
lug
on
the
input
connector
(rear
apron)
and
'
solder
(S2).
See
Pictorial
12.
Laythenearlycompletedassemblyasideuntilthefrontchassisapronandpanelassemblyis
completed,
ASSEMBLING
THE
PANEL
(
),
Remove
the
panel
Jrom
its
wrapping'
(
1
j
locate
the
front
chassis
apron,
five
brass
panel
bushings,
five 3/8"
control
lockwashers'
V
and
five 3/8"
control
nuts.
NOTE:
Dur
ing assembly,
be
careful
not
to
for assemblY
and
wiring.
mar
the
panel. Refer
to
Pictorial
13
on
page
43
(,)Laythefrontchassisaproninplaceonthe.backofthepanel'asshown'andinstallthe
' '
lrrJr,ing"
through
trr"
r.oifoi
tte
prn"r at the
locati.ons
shown,
Do
not
place
a
bushing
at
the
band
switch
loca6on.
use
a S/8"'lockwasher
and 3/8"
control
nut
to secure.
Do
not tighten
/the
nuts
until
all bushings
bave
been
installed'
(
vi
n"-ov"
the
nut
and
solier
lug
from
the
mi,crophone
connector
and
insert
the
connector
at
'
v'
il;;;;;i ioJiott
-""t"a
tvttdnopnoxs.
Secure
it
rtrith
an extra
3/8" lockwasher
plus
the
sold-er
lug and
nut which
was
furnished
with
the conneetor'
(.),/"ltacea
3/8,,control
ground
lug
and
athick
3/8'' wa.sher
onthe
bushingol
thefunction
switch'
y
Insert
it from
the
r"".
of lfr""p."el,
Use
a
nickel
panel
washer
and
a 3/8"
nut
to
secure'
Orient
the
ground
lug
near
terminal
#3 of
the
switch
and
tighten
the
nut'
(\)
Place a
3/8" control
ground
lug
and
a
thick-3/8".
washer
on the
bushing
of
a 500
KQ
control
'
and
insert
it
through
tf*
p""J"t
the
AUDIO
GAIN
location'
Orient
the
control
sblder
lug
nearest
terminal
#1.
Use
a
nickel
panel washer
and
3/8"
control
ngt for securing'
(
V
Mount
the
"Heathkit"
nameplate
as
shown,..in
the two
small
holes
provided'
Hold
it
tight
'
'
,grin"t
iiru
panel
and
t"
lr"-[ft"
"tua"
b
I/
4" .
Now touch
the
plastic
pins
on the
back
of the
pinel
with
a soldering
iron,
melting
the
plastic
to
lorm
a
retaining
shoulder'
(
i).,Mount
the
meter.
use
the
lockwashers
and
nuts
furnished
with
the
meter'
InstaII
a
3 lug,
onegroundterminarstripasstrowninPictorial13onpage43,atthebottomleftmeterstud'
Mou-nt
a #6
(small)
ground
lug
at
the
top
meter
stud'
(.
i)
ptace
a #8 solder
lug on
both
meter
lugs
and
secure
as
shown
with
the #8-32
nuts
supplied'
j
(
U
Cut
one lead
of a
.01
m-fd
disc
ceramic
capacitor
to
3/4"
' Connect
this
Iead
to
Ml
(NS)'
-
pass
the
other
lead
ti,"o"gr,
rraz
(l{s)
to
tn!
ground
lug
at the
top
of the
meter
(s1).
Now
solder
M2
(S
1).
(
\
Connect
a
2? KQ
(red
-violet
-ora
nge)
l/2
watt
resistor
from
Ml
(S2)
to
AA3
(NS)'
NoTE:
When Soldering
diodes,
grasp the
lead
to be
soldered
with
long
nose
pliers.
The
pliers
will absorb
the
heat
and
prevent
damage
to the
diode'
..f
(
-)"Cut
both
leads
of
the
diode
to
Lf
2".
Connect
the
Connect
the
other
lead
to
AA1
(NS)'
cathode
lead
(color
bands)
to
AA3
(S2)'
\
f.J
Connect
a
L
mh
RF
choke
(45-3) from
AA2
(S1)
to
AA1
(NS)'
Page
44