MEP S.p.A.
6--6 Use and maintenance manual DM 8
LETTER
IDENTIFICATION OF THE COMPONENT
EXAMPLESTYPE OF COMPONENT
T Transformers
Current transformer
Control circuit supply tran-
sformer
Power transformer
Magnetic stabiliser
Voltage transformer
TA
TC
TM
TS
TV
U Modulators, converters
Discriminator
Demodulator
Frequency converter
Coder
Converter
Inverter
Telegraphic repeater
U
V
Electronic pipes, semiconduc-
tors
Electronic pipe
Gas discharge pipe
Diode
T ransistor
Thyristor
V
W
T ransmission lines, wave gui-
des, antennas
Conductor
Cable
Bar
W ave guide
W ave guide directional
coupler
Dipole
Parabolic antenna
W
X Terminals, sockets, plugs
Connector bar
Test plug
Plug
Socket
Terminal connector band
XB
XJ
XP
XS
XT
Y
Electrically operated mechani-
cal appliances
Electromagnet
Electromagnetic brake
Electromagnetic clutch
Magnetic table spindle
Electromagnetic valve
YA
YB
YC
YH
YV
Z
T ransformers, impedence
adapters, equalizers, band limi-
ters
Line equalizer
Compresser
Crystal filter
Z
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