Integrated Circuit 4W Audio Amplifier with DC Volume Control
 
The NTE1852 is a monolithic integrated 4W audio Amplifier circuit with DC volume control in a 9−pin single in−line (SIP) plastic package. The wide supply voltage range makes this circuit very suitable for applications such as television receivers and record players. The DC volume control stage has a logarithmic control characteristic with a range of more than 80dB. Control can be obtained by means of a variable DC voltage between 3.5 and 8V. The audio amplifier has a well−defined open−loop gain and a fixed integrated closed−loop gain. This offers an optimum in number of external components, performance and stability
 
Full spec sheet:
https://www.nteinc.com/specs/1800to1899/pdf/nte1852.pdf