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NGT Transceiver System Technical Service Manual 13
Circuit reference designations
Abbreviation Designation
A assembly
B transducer—microphone, loudspeaker etc
C capacitor
D diode—small signal and power
E heating device
F protection device—fuse etc
G generator—battery etc
H signalling/indicating device—lamp, LED, buzzer etc
IC integrated circuit, thick film hybrid etc
J jack socket
K relay, key switch
L inductor
M indicating device—meter etc
Pplug
Rresistor
Sswitch
T transformer, common mode choke
TP test point
U modem, modulator-demodulator
V semiconductor (not including small signal and power diodes)
Xterminals
Z quartz crystal, crystal filter, frequency network
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