This part is a kind of semiconductor called JRC2073.

Function of this product has NJM2073.

Manufacturers : New Japan Radio

Image and pinout :

Some of the text within the PDF file :

NJM2073 DUAL LOW VOLTAGE POWER AMPLIFIER ■ GENERAL DESCRIPTION The NJM2073 is a monolithic integrated circuit in 8 lead dual-in-line package,which is designed for dual audio power amplifier in portable radio and handy cassette player. ■ PACKAGE OUTLINE ■ FEATURES ● Operating Voltage ● Low Crossover Distortion ● Low Operating Current ● Bridge or Stereo Configuration ● No Turn-on Noise ● Package Outline ● Bipolar Technology ( V+=1.8V~15V ) DIP8,DMP8 NJM2073D ■ PIN CONFIGURATION NJM2073M NJM2073D NJM2073M Ver.2004-03-01 -1- NJM2073 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Output Peak Current Power Dissipation Input Voltage Range Operating Temperature Range Storage Temperature Range SYMBOL V+ IOP PD VIN Topr Tstg RATINGS 15 1 ( DIP8 ) 700 ( DM [ ... ]

JRC2073 PDF Datasheet Download