BUY 2N3584 https://www.utsource.net/itm/p/1000443.html
T-NPN SI- HIV PO
Description: The 2N3584 is a silicon NPN power transistor in a TO-3 package, intended for general purpose switching and amplifier applications. Features: - Maximum collector-emitter voltage (VCEO) of 80V - Continuous collector current of 4A - Maximum power dissipation of 17W Applications: - Low frequency power switching - Line operated class A and class B amplifiers - Regulated power supplies (For reference only)