Ten-Tec 4229 - SWR Board Assembly; SWR Board Component Installation

SWR BOARD ASSEMBLY #80859
REFER TO FIGURE 6
(
)
1.
From
the
foilside
insert
the
small
ends
of
the
threaded
stand-off
spacers
in
the
two
holes
diametrically
opposite
and
on
either
side
of
the
large
hole
in
the
circuit
board.
These
may
fit
tightly,
but
they
should
be
fully
in-
serted
until
the
large
diameters
are
touching
the
cOpperfoil.
To
further
tighten
the
insertion,
flair
the
small
diameter
on
the
plain
side
of
the
board.
This
can
be
done
with
a
punch
of
suitable
size
and
striking
with
a
hammer
while
the
other
end
of
the
spacer
rests
on
a
vise
or
other
hard
surface.
This
should
make
the
fit
tight
enough
to
secure
them
in
position.
68 2W
(blue
gray
black)
R20
T20
D2
R21
(blue
gray
brown)
~dUf.
C24
680
C23 i :
aa i. STANDOFF
(brown
black
red)
R23
ere
ial
.
in
series
IK
R22
C21
24pf—
C2552
01
srt
=>
3
PIN
C2
Gur
O
eeu
C22
430pf
C27
5-60pf
FIGURE 6 —- SWR BOARD
(
)
2.
Install
each
of
the
circuit
components
in
positions
indicated
on
the
non-foil
side
of
the
board.
All
components
are
mounted
on
this side
of
the
board.
The
component
numbers
and
values
agree
with
those
in
the
schematic
drawing
in
the
area
enclosed
in
dashed
lines
in
the
upper
left
area
of
the
schematic
drawing.
(See
Owners
Manual
for
Model
229
supplied
with
kit.)
( ) A. As the leads of each component are inserted through the board, the compo-
nent should be resting on the surface of the board. Bend the wire leads
sharply against the foil pattern leading from each particular hole and
cut off excess lead beyond where sufficient lead can be soldered. (App.
Th oacdl
( ) B. Diodes D20 and D21 are installed with the polarizing bands in the posi-
tion noted on the board.
( ) C. The three terminal connector is installed so that the high back is toward
the center of the board.
( ) D. The variable capacitor C27 will fit in only one position with its three
mounting lugs.
( ) E. In mounting the prewound toroid transformer T20 the twisted and tinned
red and green leads are in the center one of the three lead holes for T20.
The single red lead goes to either of the remaining two holes and the