The HF1200W/shortwave power amplifier board consists of two parts: input and output. : MRFX1K8OH, MRFX1K50, MRFE6VP61K25H, ART2KFE, ART1K60, BLF188XR. Input power: 1-3W. Output power: 600-1250W. Current: 35A.
eBay