Heathkit HR-10B - Component Installation

-
Page
20
(
)
-Connect
a
3"
red
wire
from
lug 1 of
elec-
}
trolytic
capacitor
H
(NS)
to
lug
3 of
terminal
£/
strip
L
(NS).
( ) Connect a
3-1/2"
red
wire
from
lug
2 of
/
electrolytic
capacitor
H .
(NS}
to
lug
1 of
terminal
strip
G
(NS}.
( ) Connect a
2"
red
wire
from
lug 3 of
elec-
/
trolytic
capacitor
H
(NS)
to
lug
7 of tube
socket
V7
(S-1 ).
·
(
) Connect a length of
bare
wire
from
lug
4
/
of tube
socket
V7
(S-1)
to
the
solder
lug
mounted on
V7
(S-1}.
COMPONENT INSTALLATION
Refer
to
Pictorial
3 (fold-out
from
Page
25)
for
the following
steps.
NOTE:
Before
proceeding,
read
paragraph
3
under
Chassis
Wiring
And
Soldering
on
Page
9.
(!Y:C35.
Connect a ,005 !lfd
disc
ceramic
_
capacitor
from
lug 3 of
control
FB
(S-1)
r
to lug 4 of
switch
FC
(NS).
-
u·:
( )
R32.
Connect a
1 megohm
(brown-black-
green)
1/2
watt
resistor
from
lug 4 of
switch
FC
(S-3)
to
lug
3 of
terminal
strip
A
(NS).
.
ft(:>
R29. Connect a
47
Kn
(yellow-violet-or-
l
ange)
1/2
watt
resistor
from
lug
5ofswitch
FC
(S-2}
to
lug
4 of
terminal
strip
A
(~S).
~
)'(34.
Connect a 1500
n
(brown-green-red)
/'2
watt
resistor
between
lugs 3 (S-2} and 4
' (S-1) of phone
jack
FA.
--
(~29.
Connect a
.05 !lfd
disc
ceramic
ca-
pacitor
between
lugs
1
(NS)
and 2
(NS)
of
.
terminal
strip
A.
(,C33.
Connect a
.05
llfd
disc
ceramic
ca-
pacitor
between
lugs
2
(NS)
and 3
(NS)
of
.
terminal
strip
A.
( ) 32. Connect a 220
llllf
disc
ceramic
ca-
acitor
between
lugs
2
(NS)
and 4
(NS)
of
erminal
strip
A.
(jf.
Place
one end of a length of
bare
wire
7
through
lug
3
(NS)
to
the
center
post
(NS)
of tube
socket
V5. Now
solder
lug
3
of
v5.
Connect
the
other
end
of
this
wire
to
the
ground
lug
nearest
lug
3 of
V5
(NS).
(Jf
Place
one
end
of a length of
bare
wire
through
lug 5
(NS)
through
the
center
post
S)
to
lug
9
(NS)
of tube
socl,<:et
V5. Now
lder
lug
5 (S-2). Connect
the
other
end
of
is
wire
to
the
ground
lug
nearMt
lug 5
of
V5
(NS}.
(
a-f.
Connect a length of
bare
wire
from
lug 9 of
/
tube
socket
V5
(S-2)
to
the
groundlugnear-
est
lug 9 of
V5
(NS).
R27. Connect a 2.2
megohm
(red-red-
green)
1/2
watt
resistor
from
lug
8
of
tube
socket
V5
(NS)
to
the
ground
lug
nearest
lug 5 of
V5
(S-2).
C36.
Connect
the
positive
(+)
lead
of a 10
A
f.d
electrolytic
capacitor
to
lug
6 of
"tube
ocket
V6
(NS). Connect
the
other
lead
of
his
capacitor
to
the
ground
lug
nearest
lug 3
of
tube
socket
V5
(S-2). .
Refer
to
De"tail
3A
for
the
following
steps.
I
I
Detail3A
..KJ
R30.
Connect a
270
Kn
(red-violet-yellow)
7
resistor
from
lug 7 of tube
socket
V5
(NS)
to
the
ground
lug
nearest
lug
9 of
V5
(S-2).
'
--
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