Heathkit SB-401 Assembly Manual page 81

Ssb transmitter
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Detail 4-80
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6 - 32
x
1/4 "
SCREW
#6x3/S"
SHEET
METAL
SCREW
DR
IV E R
SHIELD
SWITCH
SHIELD
#6x3/S"
SHEET
METAL
SCREW
( ) Rotate the Band switch shaft to be sure that
it clears
relay AG. If it does not, loosen
the hardware
securing
relay AG and re-
position AG.
.
( ) Install #6
x
3/8" sheet metal screws through
the switch support into the switch and driver
shields.
( ) Retighten the control nut and switch mount-
ing nuts that secure the Band switch to the
chassis.
( ) Make sure
the rotors
and stators
of
the
Band switch
stay
in
position, with respect to
each other; then install
6-32
x
1/4"
screws
through the switch support into the mounting
feet of the Band switch.
( ) Loosen the control nut and the mounting nuts
that secure the Band switch to the chassis.
( ) Install the switch support on the chassis,
being careful not to pinch any wires between
the support and the chassis. Use 4-40
x
1/2"
hardware,
the small spring clip, and #6
x
3/8" sheet metal screws. Be sure the rubber
grommet fits into the cutout in the support.
4-40xl/2"
SCREW
RUBBER
I
GROMMET
~@
c..
I
4-40
NUT ~
II
4 L OC K WAS HER
A
C\)
SW'TCH
SUPPORT
#6
X
3/8"
SHEET
METAL
SCREW
~ ) Cut a 1/4" section from one side of a 3/8"
rubber grommet and place the grommet over
the cable assembly as shown.
( ) Position the orange and white-orange wires.
from B0#12 as shown.
Refer to Detail 4-8D for the following steps.
Detail 4-SC
FEEOTHROUGH
CAPACITOR
NUT
3-4Sxt/S"
SCREW
6-32"xl/4
t1
SCREW
I
!
o
SW
I
TC
H
SUPPORT
~
6-32 NUT
~,,_
#6 lOCKWASHER
Page 67

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