TM 750-5-3
Table of component indicators--Continued
Chart II.
Family name
Examples of use (not to be construed as limiting the application of the component
Component
indicator)
indicators
Electrical power generators without prime movers (see PU &
G______
Generators, power _ _ _ _ _ _ _ _ _ _ _ _
PD).
Goniometers _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ Goniometers of all types.
GO _ _ _ _ _ _
Ground rods _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Ground rods, stakes, etc.
GP _ _ _ _ _ _ _
Includes earphone.
Head, hand, and chest sets _ _ _ _ _ _ _
H______
Crystal holder less crystal.
HC _ _ _ _ __
Crystal holder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Heating, cooling, dehumidifying, pressure, vacuum devices, etc.
HD_ _ _ _ _ _
Air-conditioning apparatus_ _ _ _ _ _ _ _
Calibrated dials and meters, indicating lights, etc. (see IP).
ID _ _ _ _ _ _
Indicators, noncathode ray tube_ _ _ _ _ _
Strain, standoff, feed-through, etc.
Insulators _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
IL _ _ _ _ _ _ _
Includes SWR gear, field intensity and noise meters, slotted
Intensity measuring devices _ _ _ _ _ _
IM _ _ _ _ _ _
lines, etc.
Azimuth, elevation, panoramic, etc.
Indicators, cathode ray tube _ _ _ _ _ _
IP_ _ __ _ _
Junction, jack and terminal boxes, etc.
Junction devices_ _ _ _ _ _ _ _ _ _
J_____ _
Mechanical electrical and electronic keyers, coders, inter-
Keying devices _ _ _ _ _ _ _ _ _ _ _ _ _ _
KY_ _ _ _ _ _ _
rupters, etc.
Includes special apparatus such as cable plows, etc.
Tools line constriction _ _ _ _ _ _ _ _ _
LC_ _ _ _
Separately housed loudspeakers, intercommunication station.
LS _ _ _ _ _ _
Loudspeaker _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Radio, telephone, throat, hand, etc.
M ______
Microphones _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Magnetic tape or wire, etc.
Magazines _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
MA_ _ _ _ _ _
Device for varying amplitude, frequency or phase.
Modulators _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
MD _ _ _ _ _ _
ME______
Multimeters, volt-ohm-milliammeters, vacuum tube volt-
Meters _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
meters, power meters, etc.
Magnetic tape or wire eraser, electromagnet, permanent
Magnets or magnetic field generator _ _ _
MF_ _ _ _ _ _
magnet, etc.
Maintenance, modification, etc. except tool and crystal (see
MK_ _ _ _ _ _
Miscellaneous kits _ _ _ _ _ _ _ _ _ _ _
CK. TK).
Barometer, hygrometer, thermometer, scales, etc.
Meteorological devices _ _ _ _ _ _ _ _ _
ML_ _ _ _ _ _
Mountings, racks, frames, stands, etc.
MT_ _ _ _ _ _
Mountings _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Equipment not otherwise classified, includes subassemblies.
MX _ _ _ _ _ _
Miscellaneous _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Do not use if better indicator is available.
Memory units.
Memory units _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _
MU_ __ _ _ _
Master frequency, blocking, multivibrators, etc. (for test
O_ _ _ _ _ _ _
Oscillators_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
oscillators, sec SG).
Assembly of operating units not otherwise covered, used with
Operating assemblies_ _ _ _ _ _ _ _ _ _ _ _
OA_ _ _ _ _
or part of one set or set series.
Bathythernlograplls, etc.
Oceanographic devices _ _ _ _ _ _ _ _ _ _
OC_ _ __ _ _
Test oscilloscopes for general test purposes.
OS_ _ _ _ _ _
Oscilloscope, test _ _ _ _ _ _ _ _ _ __ _ _ _ _ _
Gasoline engines, electric motors, diesel motors, etc.
PD_ _ _ _ _ _
Prime drivers _ _ _ _ _ _ _ _ _ _ _ _ _ _
Fittings, pole _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Cable hanger, clamp, protectors, etc.
PF_____
Pigeon articles _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Container, loft, vest, etc.
PG_ _ _ _ _ _
Camera, projector, sensitometer, etc.
*PH_ _ _ _ _
Photographic articles_ _ _ _ _ _ _ _ _ _ _ _ _ _
Power supplies _ _ __ _ _ _ __ _ _ _ _ _ _ _ _ _ _ Nonrotating machine type such as vibrator pack, rectifier,
PP_ _ _ _ _ _
thermoelectric, etc.
Plotting equipments _ _ _ _ _ _ _ _ _ _ _ _ _ Except meteorological. Boards, maps, plotting table, etc.
PT _ _ _ _ _
Power equipments _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ Rotating power equipment except dynamotors, motor-genera-
PU _ _ _ _ _
tor, etc.
Receivers, all types except telephone.
R_ _ _ _ _ _
Receivers _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Reel cable (see RI).
RC_ _ _ _ _
Reels _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Sound, graphic, tape, wire, film, disc, facsimile, magnetic,
RD____
Recorder-reproducers_ _ _ _ _ _ _ _ _ _ _ _ _ _
mechanical, etc.
Relay assemblies _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Electrical, electronic, etc.
RE_ _ _ _ _
Composite component of RF circuits. Do not use if better
RF_ _ _ _ _
Radiofrequency component _ _ _ _ _ _ _ _
indicator is available.
6
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