Construction Notes - Daystrom Heathkit IP-22 Assembly Manual

Isolation
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CONSTRUCTION NOTES
This manual i s supplied to assist you in every
way to complete your kit with the least possible
chance for error. The arrangement shown
is
the result of extensive experimentation and
trial. If followed carefully, the result will be a
stable instrument, operating at a high degree
of dependability. We suggest that you retain the
manual in your files for future reference, both
in the use of the instrument and for i t s main-
tenance.
UNPACK THE KIT CAREFULLY AND CHECK
EACH PART AGAINST THE PARTS LIST. In s o
doing, you will become acquainted with the parts.
Refer to the charts and other information on the
inside covers of the manual to help you identify
the components. If some shortage o r parts
damage i s found in checking the P a r t s List,
please read the REPLACEMENT section and
supply the information called for therein. Include
all inspection slips in your letter to us.
Resistors generally have a tolerance rating of
10% unless otherwise stated in the Parts List.
Tolerances on capacitors a r e generally even
greater. Limits of
+
1000/0 and -20
O/ o
a r e common
for electrolytic capacitors.
We suggest that you do the following before work
is started:
1.
Lay out all parts s o that they a r e readily
available.
2.
Provide yourself with good quality tools.
Basic tool requirements consist of a screw-
driver with a
1/4"
blade; a small screw-
driver with a 1/8" blade; long-nose pliers;
wire cutters, preferably separate diagonal
cutters; a pen knife o r a tool for stripping
insulation from wires; a soldering iron (or
gun) and rosin core solder. A set of nut
drivers and a nut starter, while not neces-
sary, will aid extensively in construction of
the kit.
Most kit builders find it helpful to separate the
various parts into convenient categories. Muffin
tins o r molded egg cartons make convenient
trays for small parts. Resistors and capaci-
t o r s may be placed with their lead ends in-
serted in the edge of a piece of corrugated
cardboard until they a r e needed. Values can
be written on the cardboard next to each
component. The illustration shows one method
that may be used.

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