Heathkit SG-8 Assembly And Operation Manual page 7

NOTE: We suggest that you execute the following preparations before any work is started:
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3.
ASSEMBLY OF SUB-CHASSIS
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of wires and parts is extremely critical in circuits operating at high frequencies, and changes
may seriously affect the characteristics or calibration of the signal generator.
STEP-BY-STEP ASSEMBLY INSTRUCTIONS
The following instructions are presented in a simple, logical, step-by-step sequence to enable
you to complete your kit with the least possible confusion.
Be sure to read each step all the way through before starting. When a step is completed, check
it off in the space provided. This makes it easy to resume construction after your work has
been interrupted.
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Select from the large fold-in pictorials included with the manual the diagram showing the
phase of construction you are engaged in at the time. Attach this diagram to the wall above
your work space.
After identifying the parts from the parts list, lay them out in a large shallow box so that
they are readily accessible. This will save considerable time in construction.
Read thoroughly the assembly and wiring instructions on the inside rear cover of the manual
and refer to the general information on both inside covers of the manual to identify the parts.
Unless otherwise stated, 6-32 screws, lockwashers and nuts are used in mounting of parts.
Wire is to be insulated unless otherwise specified. Insulated sleeving is to be used on bare
wires when called for.
Leads on condensers, transformers, and resistors are generally much longer than they need
be to make the indicated connections. In these cases, the excess leads should be cut off as the
parts are added to the chassis. Not only does this make the wiring much neater but in radio
frequency work, the excess length of leads may actually create tuned parasitic circuits at un ­
desired frequencies.
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NOTE: In assembling the kit, use lockwashers under all nuts unless a solder lug is used. The
3-48 screws and nuts used in mounting the miniature tube sockets are the only exception to this
rule.