Transistor NPN Silicon 80V 4amp TO-126 Audio Power AMP And Switch Complement To NTE185
 
The NTE184 (NPN) and NTE185 (PNP) are silicon complementary transistors in a TO126 plastic package designed for use in power amplifier and switching circuits.
 
Full spec sheet:
https://www.nteinc.com/specs/100to199/pdf/nte184.pdf