MIL-HDBK-162A
Volume 1 of 2
15 December 1965
APPENDIX A
EXPLANATION OF THE JOINT ELECTRONICS
TYPE DESIGNATION SYSTEM (JETDS)
The JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (JETDS), and it's procedures, are mandatory for use in type
designating of all electronic material as defined in MIL-STD-196B. The military department may use this system for
allied classes of material where such usage is in accordance with standard DEPARTMENT OF DEFENSE procedures.
The System is explained and illustrated by the following chart.
THE JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (JETDS)
TABLE OF UNIT (COMPONENT) INDICATORS
EXAMPLES OF USE
COMP.
(Not to be construed as limiting the applica-
IND
FAMILY NAME
tion of the unit indicator)
AB
Supports, antenna ...................................................... Antenna mounts, mast bases, mast sections, towers, etc.
AM
Amplifiers ................................................................... Power, audio, interphone radio frequency, video, electronic
control, etc.
AS
Antennae, simple and complex ................................... Arrays, parabolic type, masthead, whip or telescopic loop,
dipole, reflector, etc.
*AT
Antennae, simple........................................................ For new assignments use AS
BA
Battery, primary type .................................................. B batteries, battery packs, etc.
BB
Battery, secondary type .............................................. Storage batteries, battery packs, etc.
BZ
Signal devices, audible ............................................... Buzzers, gongs, horns, etc.
C
Controls ..................................................................... Control box, remote tuning control, etc.
CA
Commutator assemblies, sonar .................................. Peculiar to sonar equipment.
CB
Capacitor bank ........................................................... Used as a power supply.
CG
Cable assemblies, RF ................................................ RF cables, waveguides, transmission lines, etc., with
terminals.
CH
Chassis, drawer, door................................................. A framework designed to accept plug-in modules. May
include circuitry and/or receptacles. Does not incl).de the
plug-in module(s). It is not a storage facility or blank chassis.
.CK
Crystal kits ................................................................. A kit of crystals with holders.
CM
Comparators .............................................................. Compares two or more input signals.
CN
Compensators............................................................ Electrical and/or mechanical compensating regulating or
attenuating apparatus.
CP
Computers ................................................................. A mechanical and/or electronic mathematical calculating
device.
CR
Crystals...................................................................... Crystal in crystal holder.
CU
Couplers .................................................................... Impedance coupling devices, directional couplers, etc.
CV
Converters (electronic) ............................................... Electronic apparatus for changing the phase, frequency, or
from "one" medium to "another".
CW
Covers ....................................................................... Cover, bag, roll, cap, radome, nacelle, etc.
CX
Cable Assemblies, nonRF .......................................... NonRF cables with terminals, test leads, also composite
cables of RF and nonRF conductors.
CY
Cases and cabinets .................................................... Rigid and semirigid structure for enclosing or carrying
equipment.
D
Dispensers ................................................................. Chaff, leaflet, flare, napalm, bomblet, etc.
DA
Load, dummy ............................................................. RF and nonRF test loads.
DT
Detecting heads ......................................................... Magnetic pickup device, search coil, hydrophone, etc.,
(see RF).
DY
Dynamotors ............................................................... Dynamotor power supply.
E
Hoists......................................................................... Sonar hoist assembly, etc.
F
Filters......................................................................... Band-pass, noise, telephone, wave traps, etc.
1A-1
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