LDMOS Amplifier 1000W SDR HERMES FM CW SSB 1.8-54 MHz
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LDMOS Amplifier 1000W (0.5W input) SDR HERMES FM CW SSB 1.8-54 MHz with copper plate!
Assembled and tested PCB with BLF578 - 1000W out
Transmission line output transformer on 43 material coresCircuit board is FR4 double layer, copper thickness 50 um (1.5 oz)
Size 80 x 100 mm
Operating frequency band 1.8 - 54 MHz
Drain power supply voltage 50-55 V
Current consumption 30 A max
Input power - 0.5W 500 mW
Output power 1000W
Cables, wires for the switch - Teflon
The transistor is screwed through the liquid metal Coollabaratory. It's better than solder.
You can see on the video test of the power amplifier.. You can see the linearity bands as well.
You will need a low-pass filter.
You will need to be protected from high SWR:
And you well need LCD power meter and tandem match: