Eico HF-20 - Page 11

SWITCH
WIRING
(
)
Fig.
2.
Connect
on
850mmf
capacitor,
C19,
and
a
100K
5%
resistor,
R34,
from
IB (S) to
1C
(S).
(
)
Fig.
2.
Connect
a
500mmf
capacitor,
C20,
and
a
100K 5% resistor, R35,
from
5C
(S)
to
5B (S).
(
)
Fig.
2.
Connect
a
5000 mmf
10%
capacitor,
Cl
8,
and a
4. 7
meg
resistor,
R36,
from
7C (C)
to
8A
(S).
(
)
Fig.
2. Connect
a2700mmf
capacitor,
C21
,
anda
2.2
meg
resistor, R38,
from
8D (S)
to
9B (S).
4
(
)
Fig.
2.
Connect
a
3300
mmf
capacitor,
C17,
and
a
560K
resistor.
R37,
from
1 ID (S)
to
11
A
(S).
(
)
Fig.
2.
Connect
a
blue
lead from
4D
(S) to
7C (S).
(
)
Fig.
2.
Connect
a
2“
blue
lead
to
12C (S).
Leave
the
other
end
free.
( )
Fig.
2.
Connect
one
end of
a
Jmfd
20%
capacitor,
C25,
to 2D
(C).
This
lead
should
be
only
1“
long.
Leave
the other
end free.
(
)
Fig.
2.
Connect
a
bare
lead
from
2D
(S) to 3E (S).
( )
Fig.
2.
Connect
a
2"
blue lead
from
10E
(C) to
6E
(S).
( )
Fig.
2.
Connect
a
5"
pieceof
bare
wire
to 8F
(C).
Leave
the
other end
free.
(
)
Fig.
2.
Cut
four
5"
length
of
shielded
cable.
On
one
end
ofeach,
strip
back
the
braided
shield
and
outer
insulation 3/4“
. Strip
back
the
inner
insu-
lation
3/8".
(Call
this
end
"A".)
On
the
other
end of
each
(end
n
B"),
the
outer
insulation
is
stripped
back
1",
the
braid
shield
3/4",
and
theinnerin-
su
lotion
3/8“
.
(
)
Fig.
2.
Connect
the
inner
leads
of
theffour
cables
(end
"B"),
so
that
one
connects to
each
of
the
following
four
switch
terminals:
(
)
IF
(S)
(
)
2F (S)
( )
1 1F
(S)
(
)
12F
(S)
(
)
Fig.
2.
Cut
a
5“
piece
of bare
wire.
Wrap
this
wire
one
turn
around
the
exposed
outer
braid
on
the
"B"
end
of each
of
the
shielded
cables
now
connected
to
2F,
IF,
12F,
and
1 1
F
consecutively
and
in
that
order,
leaving
3/8"
of
bare
wire
between
wrappings.
Solder
the
bare to
the
outer
braid
on
each
cable
quickly
with a
hot,
clean
iron
so
as to
minimize
heating
of
the
cable
insulation.
Connect
the
free
end
of
the bare
wire
(coming
off
the
braid
of
the
cable
connected
to
1 IF)
using
spaghetti,
to
8F
(S).
( )
Fig.
2.
Cut a
6"
length of
shielded
cable.
On one
end,
strip
back
the
braided
shield and outer insulation
3/4"
. Strip
back the
inner
insulation
3/8"
.
(Call
this
end
"A".) On the
other
end
(end "B"),
the
outer insulation
is
stripped
back
1"
the braided
shield
3/4"
and
the
inner
insulation
3/8".
On
end
"B",
wrap
one
turn
of a
2"
piece
of
bare
wire
around
the braided
shield
and
solder with
a
minimum of
heat. Connect
the
inner
leadtf
end
"A" to
10E
(S).
Leave
end
"B" and
the
small piece of
bare
wire
free.
SI
R35
C20
Fig.
»