Emtron DX-3SP - DX-3 Sp - Internal View

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1.1 DX-3SP – Internal View
The main components of a DX-3SP amplifier are shown in the picture below.
Figure 1
BAND
SELECTOR
PLATE
TUNING
LOAD
TUNING
POWER ON / OFF
STANDBY / OPERATE
SWITCH
DISPLAY
TANK COIL, 40 -160 m
TANK COIL, 10-30 m
BAND SWITCH
Temperature Sensors
RF CHOKE
RF SENSOR
ANT. RELAY
(QSK)
BLOWER
SOFT START
SAFETY
MICORSWITCH
HIGH VOLTAGE
POWER SUPPLY
CONTROL
BOARD
Tetrode FU-728F
MAINS
TRANSFORMER
TERMINAL BLOCK
PRIMARY WIRING
SUCTION
FAN
Coupling
Capacitor
Mains Isolation
Relay
SAFETY CHOKE