BUY MJ11016 https://www.utsource.net/itm/p/1146411.html
The NPN Darlington Bipolar Power Transistor is designed for use as output devices in complementary general purpose amplifier applications. The MJ11015 (PNP); MJ11012 and MJ11016 (NPN) are complementary devices.
Package: TO-3 Manufacturer: ON/MOT Description: The MJ11016 is a two terminally isolated NPN silicon power transistor that is designed for audio and general purpose applications. It is provided in a TO-3 package with a collector-emitter voltage of 11 V and a total power dissipation of 16 W. The device features a low collector to emitter saturation voltage and a high DC current gain. Features: Low collector to emitter saturation voltage High DC current gain Two terminal isolation TO-3 package Total power dissipation of 16 W Collector-emitter voltage of 11 V Applications: Audio amplifiers General applications (For reference only)