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Power amplifier 500W SDR Digital Data Modes FM SSB CW water cooling 1.8-54 MHz
Admin: PA500W Digital Data Modes/FM/SSB/CW/ 1.8-54 MHz with copper plate and water cooling heatsink! Assembled and tested PCB with 2 matched units of transistors VRF2933 - 500W out Transmission line output transformer on 43 material cores Circuit 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 15 A max Input power 2-3 W Output power 500W Cables, wires for the switch - Teflon In water cooling heatsink 2 pcs FAN 120 mm 12V (ZALMAN ZM-F3) Water pump - 12V 400 mA Heatsink copper You can see on the video test of the power amplifier work in a continuous mode. You can see the linearity bands as well. VIDEO TEST 20 min transmission
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