BUY AFV09P350-04GNR3 https://www.utsource.net/itm/p/9259200.html

Description: This is a high-power HF (High Frequency) amplifier from Freescale Semiconductor. It is a 3-stage, Class AB amplifier designed for use in HF radio applications. Features: High power output: 350W Low distortion: 0.5% High gain: 40dB Wide frequency range: 1.8-30MHz High efficiency: >50% Low noise figure: <3dB Low supply voltage: +12V Applications: This amplifier is designed for use in HF radio applications such as military and commercial communication systems, amateur radio, and broadcast radio. It can also be used in other applications where high power and low distortion are required. (For reference only)