BUY MRF650 https://www.utsource.net/itm/p/1542815.html
RF Power Transistor NPN Silicon
Description: The MRF650 is a RF transistor manufactured by Motorola. It is a NPN silicon device designed for use in RF power amplifiers in the VHF and UHF bands. Features: High gain High power output Low thermal resistance Low noise figure Low distortion High efficiency High ruggedness Applications: Base station amplifiers Mobile radio amplifiers Broadcast transmitters Radar systems Industrial and scientific applications (For reference only)