DIY 45W SSB HF Linear Power Amplifier Amateur Radio Transceiver Shortwave Radio Development Board KitNote 2sc1971 has long been Stop production so this version uses disassemble parts please note that before you buy it Manual HereDescription For ssb AM linear power amplifier CW FM power amplifier And the most basic signal amplification expansionOverall gain of more than 40dB which is 10 000 times the input 1mW output 10WInput power 1 5mWworking voltage and current 12 15V 6 8A Output power 45W max this data is the first test of the data the new data below Output Impedance 50 Ohm according to need adjustment between 10 200 EuroSuite size 60 x 100mmInput and output interfaces standard sma interfaces external thread holeBy adjusting the V303 version of the time the high gain put up at 28MHz output power of 25W basically squeezed out of the tube IRF530 potential I personally tested the following data this data table is a giant heat sink can withstand 200W measured above and do not have sufficient cooling capacity of friends please do not limit the work so unsafeIn 3 5MHz due to the low frequency low inductance resulting in a gain of a certain loss of output power a little lower than 7MHz3 500MHz 54W7 050MHz56W 10 000MHz 57W 14 270MHz 55W 21 400MHz 41W 24 000MHz 37W 28 100MHz 25W 29 600MHz 20WPackage included 1 x DIY 45W SSB HF Linear Power Amplifier Amateur Radio Transceiver Shortwave Radio Development Board Kit