BUY MRF898 https://www.utsource.net/itm/p/1542853.html
RF Power Bipolar Transistor, 1-Element, Ultra High Frequency Band, Silicon, NPN, CASE 333A-02, 6 PIN
Description: The MRF898 is a NPN silicon RF power transistor designed for use in VHF and UHF communication systems. Features: High power gain Low noise figure High efficiency Low thermal resistance Low collector-emitter saturation voltage High breakdown voltage High power dissipation Applications: VHF and UHF communication systems FM broadcast transmitters Mobile radio transmitters Radar systems Industrial and scientific applications (For reference only)