I am relatively new to electronics and need to know
What is the minimum supply voltage (Vcc) for LM1875 and for LF347 and how do I extract it from the datasheets?
In LM1875 it is written that the supply range is 16V-60V but the graphs in the datasheet show a good activity also for 15V so is 15V OK?
For LMF347 it is written that the recommended conditions are min supply of 3.5. So I guess 5 volts should be OK?
Is it better to use NE5532 in which the supply is specified for a "wide range of 3V to 20V"?