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Ten-Tec 4229 - Coil Mounting and Final Connections

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ROLLER
CONTACT:
PULLEY
CONTACT
SHAFT
SQUARE
END
SPACER
ROD
NYLON
WASHER
os
6-32
SCREW
REAR
PLATE
TENSION
ARM
SPACER
ROD
<a
SQUARE
END
5
SPACER
ROD
6-32
«3/8
SCREW
FIGURE
1%
|
)
7.
Insert
the
coil’
assembly
in
the
front
plate
from
the
foil side
of
the
plate
assembly
through
the
center
hole.
CAUTION:
The
front
end
of
the
coil
is
where
the
turns
are
close
spaced.
The
wide
spaced
turns
are
on
the
rear
end.
)
8.
Install
the
rear
plate
assembly
foil
side
to
the
inside.
CAUTION:
Place
the
remaining
tension
arm
between,
the
rear
plate
and
the
tension
arm
spacer
rod.
Secure
each
of
the
spacer
rods
with
3/8"
6-32
machine
screws
as
on
front
end
assembly.
This
tension
arm
should
also
be
free
to
move
on
the
tension
arm
spacer
when
the
screw
is
tightened.
)
9.
With
all
screws
tightened,
the
coil
should
be
free
to
rotate
and
the
entire
assembly
should
sit
flat
on
a
flat
surface
with
the
mounting
flanges
on
the
bottom.
)
10.
To
install
the
roller
contact
insert
the
silver
plated
contact
shaft
thru
~
the
large
hole
in
one
end
plate
and
through
the
remaining
hole
in
the
tension
arm
directly
below
the
spring.
Slip
the
roller
contact
(pulley)
on
the
con-
tact
shaft.
Thread
the
contact
shaft
through
the
other
tension
arm
and
through
the
large
hole
in
the
other
end
plate.
To
secure
the
contact
shaft,
place
a
nylon
washer
on
each
end
against
each
end
plate
and
insert
the
end
of
a
1-1/2"
piece
of
bare
tinned
braid
wire
through
the
holes
in
each
end
of
the
shaft.
The
other
end
of
the
braid
pieces
are
inserted
in
the
eyelets
above
each
shaft
end.
Check
the
contact
roller
and
shaft
assembly
to
see
that
there
is
free
movement
and
that
the
roller
contact
engages
the
coil
wire.
Run
the
contact
from
one
end
of
the
coil
to
the
other
by
rotating
the
coil
to
see
that
it
follows
the
turns
on
the
coil.
The
notch
in
the
roller
contact
should
ride
on
the
coil
wire.
When
satisfied
that
proper
operation
is
attained,
you
may
now
solder
the
ends
of
the
braid
pieces
in
the
contact
shaft
and
eyelets.
DO
NOT
solder
the
entire
length
of
the
braids
as
they
serve
as
flexible
con-
ductors
to
follow
the
excursions
of
the
contact
shaft
that
will
be
caused
by
slight
variations
of
concentricity
of
the
coil
and
end
shafts.
)
11.
The
final
operation
on
this
assembly
for
use
in
the
Model
4229
tuner
kit
is
to
solder
a
jumper
of
shield
braid
(remaining
from
step
10)
on
the
front
end
plate.
When
viewed
from
the
front
of
the
assembly,
this
jumper
connects
be-
tween
the
lower
of
the
two
right
corner
eyelets
and
the
next
eyelet
directly
below
along
the
right
edge.
The
variable
inductor
assembly
is
now
completed.
e

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