Tektronix 221 Instruction Manual page 39

Replacement parts are available from or through your local Tektronix, Inc. Field Office
or representative.
Changes to Tektronix instruments are sometimes made to accommodate improved
components as they become available, and to give you the benefit of the latest circuit
improvements developed in our engineering department. It is therefore important, when
ordering parts, to include the following information in your order: Part number, instrument
type or number, serial number, and modification number if applicable.
if a part you have ordered has been replaced with a new or improved part, your local
Tektronix, Inc. Field Office or representative will contact you concerning any change in part
number.
Change information, if any, is located at the rear of this manual.
In the Parts List, an Item Name is separated from the description by a colon (:).
Because of space limitations, an Item Name may sometimes appear as incomplete. For
further Item Name identification, the U.S. Federal Cataloging Handbook H6-1 can be
utilized where possible.
ACTR
ASSY
CAP
CER
CKT
COMP
CONN
ELCTLT
ELEC
INCAND
LED
NONWIR
REV C, FEB 1979
REPLACEABLE
ELECTRICAL PARTS
PARTS ORDERING INFORM ATION
SPECIAL NOTES AND SYMBOLS
X000 Part first added at this serial number
00X Part removed after this serial number
ITEM NAME
ABBREVIATIONS
ACTUATOR
ASSEMBLY
CAPACITOR
CERAMIC
CIRCUIT
COMPOSITION
CONNECTOR
ELECTROLYTIC
ELECTRICAL
INCANDESCENT
LIGHT EMITTING DIODE
NON WIREWOUND
PLSTC PLASTIC
QTZ QUARTZ
RECP RECEPTACLE
RES RESISTOR
RF RADIO FREQUENCY
SEL SELECTED
SEMICOND SEMICONDUCTOR
SENS SENSITIVE
VAR VARIABLE
WIREWOUND
WW
XFMR
TRANSFORMER
XTAL CRYSTAL
Section 8—221 Service
8-1