3 kW linear amplifier with four ART1K6 LDMOS fets
Circuit boards of the RF part
Drilling holes in copper plate
Fets soldered in a cooling plate
Two RF modules with a heatsink
Each module is tested separately
Four modules with cooling plates and combiner and divider
RF amplifier unit and power switches
Diplexer looks good!
9 kW 50 V three-phase power supply
Power connectors
Power switch
Control board
Arduino controller on board
TFT-touchscreen UI
TO BE CONTINUE....