Heathkit HD-1250 Manual page 29

(
)
Refer
to Detail 4-1
C
and prepare
a
1-3/4" length of braid as
shown. Use
a
sharp, pointed tool
and form
a hole in
the braid 1/4" from one end.
The
hole must be large enough to easily pass over the threads of a
6-32
screw.
Detail 4-1C
( )
Lightly solder the tip of
the
braid as
shown
in Detail 4-1 C.
(
)
Refer to Detail 4-1
D
and
secure*
the
rear
of the top panel to the
chassis at
Q
with a
6-32 x 3/8"
black screw, the
1-3/4"
length of braid, a
#6
lockwasher,
and
a
6-32 nut. Position the braid toward the right side of the
chassis as
shown;
its
free
end
will
be connected
later.
Page 27
Detail 4-1D
Refer to Pictorial 4-2 for the following
steps.
(
)
Slightly loosen the three tuning capacitor
mounting
screws
on
the detector
circuit
board.
( )
Place the
pushbutton knob onto
the shaft of the
pushbutton switch. Press
the knob firmly
until it is
completely seated
on
the shaft.
(
)
Place the unit
right-side
up on
a
work surface
as
shown. Then,
slightly
move
the detector circuit
board
either
forward
or
rearward
to center the
pushbutton switch
knob
in
its
top panel opening.
(
)
Be
sure the
bottom edge of the
detector circuit
board
is
parallel to the
work
surface as shown.
Then
tighten the three capacitor
mounting
screws.
( )
Bend the
tip
of tuning capacitor
lug
1
close to
the
circuit
board
foil.
Solder the lug to the foil;
then
cut the excess lug off close to the foil.
(
)
Recheck the switch knob and be sure
it
operates up and
down
freely.
PICTORIAL
4-2