Eico HF-20 - Page 27

HF20
CONSTRUCTION
BOOK
ADDENDA
Page
9
Left hand
column,
Left hand column.
Left hand
column.
Step
2:
Change
value
of
C5 to
2700
mmf ±10%.
Step
5:
Change
value
of
C3
to
.
1
mfd 400
V.
Step
8:
For
"a
piece
of
bare
wire", substitute "a
47KQ,
1/2W,
10%
resistor
(from
R10“6
(S)
to ground lug "D” (S).
Step
12:
Change
value of
C2
to 2200 mmf,
10%.
Right
hand column. Step
3:
Change value
of
R18
to
1.5KO,
1/2W,
10%.
Right
hand
column. Step
4:
Change value
of
C9
to
850mmf,
±10%.
Left
hand
column.
Please
correct
Fig.
5
on
page 8
in accordance
with the above
listed changes.
Page
1.
(last
step
in
Output
Stage
wiring):
Resistor
R48
is
3500,
10W,
not
3500,
7W.
Please
also
make the following
changes
in your instruction
book (white
pages).
Parts list of
opposite
schematic: the
third
item in the
second
column reads:
14700 R48
res.,
3500,
7W,
10%
1
It should
read:
14302 R48
res.,
3500,
10W,10%
1
The
parts
list
under
the schematic reads:
R48
res.,
3500
,
7W, 10%
It should
read:
R48
res.
,350
0,
10W,
10%
The
Replacement
Parts List
Stk.*
10400 should read:
10400
R15
res.,
10KO,
1/2W,
10%
(B-B"0)
1
ADD to the Parts
List:
11500
R32
res.,
10KO,
1/2W,
5%
CD
1
Also
make the
change on
the parts
list
under
the
schematic.
I.E.
1091
B
Electronic
Instrument
Co.,
Inc.,
33“00
Northern
Blvd.,
Long Island
City
1,
New
York