Hello friends, Mr. Juankconga if the integrated in pin 8 has + 12V and in pin 4 has -12V then it is certainly an operational integrated and you can use any of several references such as BA4560 _ BA4580 _ LM393 _ LM4558 and There are many more
BA4560.pdf [55.61kb]
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if the integrated in pin 7 has + 12V and in the 4 has -12V it can be a monophonic operational like the LM741
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Greetings from Valledupar Colombia.