Tektronix 502 series, Инструкция по эксплуатации

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REPLACEMENT PARTS
Standard Parts
Replacements for all parts used in the Type
502 Oscilloscope can be purchased directly from
Tektronix at current net prices. ‘ However, since
most of the components are standard electronic
parts, they can generally be obtained locally in
less time than required to obtain them from the
factory. Before ordering or purchasing parts, be
sure to consult the parts list to determine the
tolerance required. The parts list gives the
values, tolerances, and Tektronix part numbers of
all components used in the instrument.
Special Parts
In addition to the standard parts discussed in
the previous paragraph, special parts are also
used. These parts are manufactured, or specially
selected by Tektronix, or are made especially for
Tektronix by other manufacturers. Special parts
are distinguished in the parts list by an asterick
preceding the Tektronix part number. These
parts and all mechanical parts should be ordered
from Tektronix since they will normally be diffi­
cult or impossible to obtain from other sources.
Special parts may be obtained either from the
factory or from the local Tektronix Field Engine­
ering Office.
Since the production of your instrument, some
of the Tektronix-manufactured components may
have been superceded by improved components.
The part number of these new components will
not be listed in your manual. If you order a
Tektronix-manufactured part, and it has been
superceded by an improved component, the new
part will be shipped in place of the part ordered.
Your local Tektronix Field Engineering Office has
knowledge of these changes and may call you
if a change in your purchase order is necessary.
Replacement information sometimes accom­
panies the improved component to aid in its in­
stallation.
Duplicate Parts
The Type 502 contains virtually identical verti­
cal amplifiers for the upper and lower beams.
Parts contained in both of these amplifiers carry
the same part numbers and reference designa­
tions. In the parts list, these components are
listed only once although in actuality two are
used. These parts are distinguished from others
in the parts list by a dagger immediately follow­
ing the reference designation.
Parts Ordering Information
You will find a serial number on the frontis­
piece of this manual. This is the serial number
of the instrument for which this manual was pre­
pared. Be sure that the number on the manual
matches the serial number of the instrument when
ordering parts from the manual.
Each part in this instrument has a 6-digit Tek­
tronix part number. This number together with
a description of the part, will be found in the
parts list. When ordering parts, be sure to in­
clude both the description of the part and the
part number. For example, a certain resistor
would be ordered as follows: R160A, 100k, y2 w.
Fixed, Precision, 1%, part number 309-045, for
Type 502 Oscilloscope num ber_____________
When parts are ordered in this manner, we are
able to fill your orders promptly, and delays that
might result from transposed numbers in the part
number are avoided.
NOTE
Always include the instrument TYPE
and SERIAL NUMBER in any corre­
spondence concerning this instru­
ment.
MAINTENANCE — TYPE 502
5-3