264 Chapter5
Replaceable Parts
Reference Designations
Table 5-1 Reference Designations
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
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