BUY 2SC2290 https://www.utsource.net/itm/p/1543250.html
Silicon NPN transistor for 2-30MHz SSB linear power amplifier applications (low supply voltage use)
Description: The 2SC2290 is a bipolar NPN transistor manufactured by Toshiba. It is designed for use in RF power amplifiers, oscillators, and switching circuits. Features: rn High DC current gain rn Low noise rn High frequency operation rn Low collector-emitter saturation voltage rn High power dissipation Applications: rn RF power amplifiers rn Oscillators rn Switching circuits (For reference only)