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Replaceable Parts List
8–2
WFM 90 and WFM 91 Service Manual
Using the Replaceable Parts List
Table 8–1 describes each column in the replaceable parts list.
Table 8–1: Replaceable parts list column descriptions
Column Name Description
Fig. & Index Number Items in this column are referenced to the exploded view item
numbers.
Tektronix Part Number Use this part number when ordering replacement parts from
Tektronix.
Serial No. Effective This column indicates the instrument serial number at which the
part was first effective. No entry indicates the part is good for all
serial numbers.
Serial No. Discont’d This column indicates the instrument serial number at which the
part was discontinued. No entry indicates the part is good for all
serial numbers.
Qty This column indicates the quantity of parts used.
Name & Description An item name is separated from the description by a colon (:).
Because of space limitations an item name may sometimes
appear incomplete. Use the U.S. Federal Catalog handbook H6-1
for further item name identification.
Mfr. Code This column indicates the code of the actual manufacturer of the
part. (Code to name and address cross reference is located after
this page.)
Mfr. Part Number This column indicates the actual manufacturer’s or vender’s part
number.
The Mfg. Code Number to Manufacturer Cross Index for the mechanical parts
list is located immediately after this page. The cross index provides codes,
names, and addresses of manufacturers of components listed in the mechanical
parts list.
Abbreviations conform to American National Standards Institute (ANSI)
standard Y1.1—1972.
The part numbers for the standard and optional accessories available with this
instrument are located at the end of the replaceable parts list.
Cross Index–Mfr. Code
Number to Manufacturer
Abbreviations
Instrument Accessories