Heathkit SB-10 - Page 48

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BAN:D
:Abnere,n
CARRIER
NULL
CONTROLS
OPERATE
IN
CONJUNCTION
WITH
ONE
ANOTHER
TO
BAT,ANCE
OUT
CARRIER.
SIDEBAND
MODE SWITCH
ALLOWS
SELECTION
OF
UPPER,
LOWER OR
DOUBLE
SIDEBAND
OPERATION.
METER INDICATES
RELATIVE
RF
POWER
OUTPUT
TO AID
IN TUNING
AND
SUPPRESSING
CARRIER.
BANDSWITCH.
BAI,ANCED
MODULATOR
PLATE
CIRCUIT TUNING.
MICROPHONE
CONNECTOR.
R.
F.
OUTPUT
STAGE PLATE
TUNING.
FUNCTION
SWITCH
PLACES
ADAPTER
IN STANDBY,
VOX
OR
MANUAL
OPERATION.
AUDIO
GAIN.
Figure
16
ReIgr to
Figure 16
for the
following
steps:
I
(
1|
Install small
aluminum
knobs
on the
CARRIER
NULL
controls.
Turn
the
controls
full CCW
And
orient
the
pointer
to
full CCW
position. Use #8-32
x
1/8" allen
head setscrews'
i
(
.I
tnstarl
a smalr
aluminum
knob
on the
AUDIO
GArN
control.
Turn
the
control
full
ccw
and
' '%"i""t
the Dointer
to the
full CCw
position.
Use
a #8-32
x
1/8" allen
head setscrew'
i-
t
',rJ
rurn the side-band
reversing
switch
to the
AM
position.
Install
one
of the skirted
aluminum
'
.'''
t""u""*ltn-irt"
p"i.t"" inaicaling
AM.
use
#8-32
x
1/4" allen
head setscrews
to secure
the
!
knob
in this
and
the
next
three
steps.
('.:l
i*n
fit"
"otorplatesof
ihe
balanced
modulator
andoutput
tuning
capacitor
fully
open'
Install
a skirted
aluminum
mor
witit
its
pointer indicating
ze.o
on
each variable
capacitor
shaft'
(
-yt
Rotate
the
10
meters.
band
switch
{ull counterclockrvise
and
install
a skirted
aluminum
knob
to
indicate
(,1
t
([
Turn
the
function
switch
to
its
indicating
STANDBY.
center
position
and
install
a
skirted
knob with
its
marker
Lubricate
the
PaneI
bushings
with
Light
machine
oil to
prevent
the
control
shafts
from
binding.
This
completes
assembly
and
wiring
of
your
sB-10.
some
small
hard.tare
may
be
left over'
This
is inientional
to
prevent
shortages
due
to
losses
in volume
handling'
Page 48