1200W 1.8 - 54MHz SW Shortwave Power Amplifier Board HF Amplifier Kit MRFX1K80H BLF188 Power Amplifier Description: - HF1200W shortwave power amplifier board consists of two parts: input and output, please prepare your own power amplifier tube before use. Specification: - Input power: 1 - 3W - Output power: 600 - 1250W - Voltage: DC48 - 53V - Current: 35A - Size of front section of PCB: 43 x 90mm - Size of rear section of PCB: 92 x 90mm - Weight: 285g Package Included: - 1 x Power Amplifier Board Note: - The transistor and the radiator are not included. Usually it costs about 30USD-50USD. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.