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Table 1. Reference Designations, Abbreviations, and Multipliers (1 of 4)
REFERENCE DESIGNATIONS
A
Assembly F Fuse
RT
Thermistor
AT
Attenuator, Isolator, FL
Filter
S
Switch
Limiter, Termination HY Circulator T
Transformer
B
Fan, Motor J Electrical Connector TB
Terminal Board
BT Battery
(Stationary Portion), TC
Thermocouple
C Capacitor Jack
TP
Test Point
CP
Coupler
K
Relay
U
Integrated Circuit,
CR Diode, Diode
L
Coil, Inductor
Microcircuit
Thyristor, Step
M
Meter
V
Electron Tube
Recovery Diode,
MP Miscellaneous
VR Breakdown Diode
Varactor Mechanical Part
(Zener),
DC Directional Coupler
P
Electrical Connector
Voltage Regulator
DL
Delay Line (Movable Portion), W
Cable, Wire, Jumper
DS
Annunciator, Lamp,
Plug
X
Socket
Light Emitting
Q
Silicon Controlled Y
Crystal Unit
Diode (LED), Rectifier (SCR), (Piezoelectric,
Signaling Device
Transistor,
Quartz)
(Visible)
Triode Thyristor Z
Tuned Cavity,
E
Miscellaneous Electrical Part R
Resistor
Tuned Circuit
ABBREVIATIONS
A
BSC
Basic
CNDCT Conducting,
BTN Button Conductive,
A
Across Flats, Acrylic,
Conductivity,
Air (Dry Method),
C
Conductor
Ampere
CONT Contact,
4DJ
Adjust, Adjustment
C
Capacitance,
Continuous,
4NSI American National
Capacitor, Control,
Standards Institute
Center Tapped,
Controller
(formerly
Cermet, Cold, CONV Converter
USASI-ASA)
Compression
CPRSN Co mpression
4SSY Assembly
CCP
Carbon Composition CUP-PT Cup Point
4WG American Wire Gage
Plastic
cw Clockwise,
CD
Cadmium, Card, Continuous Wave
B
Cord
CER Ceramic
BCD
Binary Coded
CHAM Chamfer
Decimal
CIIAR Character,
D
BD
Board, Bundle
Characteristic,
BE-CU Beryllium Copper
Charcoal
D
Deep, Depletion,
BNC
Type of Connector
CMOS Complementary
Depth, Diameter,
BRG
Bearing, Boring
Metal Oxide Direct Current
BRS
Brass
Semiconductor
DA
Da.rlington
General Parts Listing 3