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Eico HF-81 - Page 43

Eico HF-81
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1. (V
!Fi9. 110 Cut all
leads on two 25mfd electrolytic capacitors
, C5 and
, to 1" and cover each with a 3/4" piece of spaghetti. Connect the positive
(+) end of C5 to XVI-
8 (C) and the negative (-
) end to 1B12-
2 (C). Connect
the pos;,lve (+) end of C6toXV2-
8 (C) and the negative (-
) end to TB14-
2(C)0
2.
1'
Fig. 11. Cut all leads on two 2.
2KQ (red, red, red
, silver) resistors
, R7
and R8, to 3/4" and cover each lead with a 1/2" piece of
spa~hetti. Connect
R7 from XVl-8 (S2) to 1B12-2 (C). Connect
R8 from XV2-
8 (S2) to 1B14-2 (C).
10. (,A' Fig. 11. Cut all leads on two IMQ (brown
, black
, green si Iver) resis-
tors, R9 and RIO
, to 3/4"
. Cover
both leads with a 1/2" piece of spaghetti.
Connect R9 from XVI-
2 (S2) to ground lug
" G" (C).. Connect
RIO from XV2-
(S2) to 1BJ3-
1 (S4).
3. (\) Fig. 11. Cut the ground end
(if the capacitor is so
marked with a line)
of two. 25 mfd paper capacitors
, C 1 and C2
, to 1"
(If it is not marked
, cut
either end to 1" 0 )
Connect this end of C
1 to XVl-6 (S2) and this end of C2 to
XV2-6 (S2). Cut the other end
of both capacitors to 3/4"
. Connect
this end
of Cl to 1B12-4 (S3) and
this end of C2 to 1B14-4 (S3).
11. ~YFig. 11. Cut both leadso(la22KQ (red, red
, orange, silver)
1 watt resis-
tor
, R61 to 3/4"
. Connect from f:.37-A (S2) to C37-
B (C).
/ '
12. (\yFig. 11. Cut both leads on
a 68KQ (blue, grey, orange, silver) resistor
R60
, to 1/2" . Connect from C37B
(S3) to C37C (S4)0
4.
U)
Fig. 11. On two
lOKQ (brown, black, orange, silver) resistors, R3 and
, cut one lead to 1/2" and the other lead to 3/4"
. Connect the 1/2"
lead
of R3 to XVl-7 (S1) and the 3/4" lead to TB12-
3 (C). Connect the 1/2" lead
of R4 to XV2-
7 (Sl) and the 3/4" lead to TB14-
3 (C).
13. ( )
Fig. 11. Cut all I
eads on two 68KQ (blue, grey, orange si Iver) resistor,
R 19 and R20 to 1/2" . Connect R
19 from S3-
2 (C) to S3-
3 (C). Connect R20
from S3-
)C)
to S3-6 (C).
14. (.!Fig. 1. Cut all leads on two 330KQ (orange
, orange, yellow, silver)
resistors
R65 and R66 to 1/2"
. Connect R65 from S3-2 (S2)
to S3-1 (C). Con
nect R66 ;10m S3-5 (S2) to S3-4 (C).
150
(~i9'
11. From hole
" S" connect the white lead to S3-
6 (S2), th~ brown
lead to S3-4 (S2), the blue lead to S3-
3 (S2) and the green
l,ead to S3-
1 (S2).
5. (.
)Fig. 11. Cut both le€lds on two IMQ (brown
black green silver) resis
~ tors, Rl and R2
, to 1/2" . Connect Rl
from 1B12-3 (S3) to 1B12-2 (C),
, Con-
nect R2 from 1B14-3 (S3) to 1B14-2 (C).
6.
(v)
Fig. 11. Cutailleadson two.
0012mfd (1.2KorI200mmf)disc capaci-
tors, C41 and C42 to 1/2"
. Connect C41
from 1B 12-
1 (C) to TB 12-
2 (S7).
Connect
C42 from TB14-
1 (C) to 1B14-
2 (S8).
16.
(\,,1
Fig. 1. Push the line cord through the
grommet at the rear
of the
chassis, near the fuseholder. 1ie a knot inside the chassis
, 3" from the solder
lugs. Con
~ect one lead to J16-
1 (S2) and the other lead to J16-
2 (S2)0
17. (
~i9.
ll. Connect the' brown lead from Sl F-
S to 1"B14- 1 (S3).
/'
18. (\
jig.
11. Connect the black lead from
SI F-
6 to ground lug "
G" (S9).
19. (\rFig.
11. Connect a l"
piece of bare wire fromS5-2(Sl) toXV5-
7(S1).
7. Fig. 11. Cut all leadson two.
025 mfd (25K or 25
000 mmf) disc capaci-
tors
C7 and CS
, to 3/4"
. Connect C7 from XVl-
l (S2) to TB12-
1 (S3). Con-
nect C~/from XV2-
1 (S2) to 1B14-
1 (C) .
8. y)
Fig. 11. Cut all leads on two 10mfd
, 6 volt electrolytic capacitors
C3 and C4, to 3/4"
. Cover ~ach lead with a 1/2" piece of spaghetti. Con-
nect the positive (+) end ofC3 toXVl-
3(C)andthe negative (-
)Ieadtoground
lug
" G" (C). Connect the positive (+)
end ofC4 to XV2-
3 (C) and the negative
) lea9' to 1B13- 1 (C).
9.
Fig. 11. Cut both leads on one 4.
7KQ (yellow, violet, red
, silver) re-
sistor
, R14 to 1/2" and both leadsol1asecond4.
;7KQ r~sistor, R13, to
3/4"
Connect R14, (with the shorter leads) fromXV2-
3(S2) to TB13-
1 (C). Connect
R13 (with the longer leads) from XVI-
3 (S2) to ground lug "
G" (C).
20. ,,)
Fj,Q; 11.
Strip back the outer insulation on both ends of a
5" piece
of singl~nductor
cable 1/2"
Twist the shield strands. Strip back the in
sulation on the inner conductor on both ends 1/4"
. On one end , cut the shi eld
strands and connect the inner conductor to S5-
3 (S 1). On the other end
, connect
the twisted shield strands to 1B21-
1 (SS) and the inner condu,ctor on the same
end to 1B21-
(S5).
21.
r ~11.
Mount the top shiEddasshownininsert on figure 4.
Use
two #6 IVckwashers and two #6-
32 hex nuts.

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