Download Print this page

Heathkit HD-1234 Assembly Manual page 8

Coaxial switch

Advertisement

Page 6
Refer t o Detail 3A and t o Pictorial 3 for the following steps.
L O C K W A S H E R
U N D
C O N N E C T O R
0
F L A T W A S H E R
6
PICTORIAL
3
NOTE: Carefully study the rear of the rotary switch
as
shown i n Detail 3A. Note
that there is one long contact lug on the switch wafer at B, and also there is a
notch in the rotary center portion of the switch.
(
)
Grasp the switch shaft with a pair of pliers and turn the switch rotor until
the long contact lug and the rotor notch are positioned together as shown
in the Detail. Do not turn the rotor again until the knob has been secured
t o the switch shaft.
(
)
Carefully bend each of the lugs so it is flat and straight out from the
surface.
(
)
Refer t o the Pictorial and carefully insert the rotary switch into the switch
housing assembly; the switch l u g will easily drop through the corner
openings in the assembly. Rotate the switch and position the long contact
lug near the ground lug inside the housing as shown.
(
)
Place the control flat washer and the control nut on the switch shaft; do
not tighten the nut.
(
)
Reach inside the housing and turn the body of the switch until the long
contact lug is directly under the ground lug as shown i n Detail
3A
Note
that one single lug on the front of the switch wafer will be under the
connector center conductor at D. The remaining pairs of switch lugs will
be in a position above and below each of the remaining four connector
center conductors.
(
)
Hold the switch firmly i n this position and tighten the control nut.
(
)
Bend the ground lug downward with the blade of a screwdriver until
it
touches the long switch lug. Solder the two lugs together.

Advertisement

loading