The maximum power supply voltage for the TL061ACD is ±18V.
Yes, the TL061ACD is suitable for audio applications due to its low noise and distortion characteristics.
While the TL061ACD can be used as a comparator, it's not the best choice due to its relatively slow slew rate and limited bandwidth. A dedicated comparator like the LM339 would be a better option.
To ensure stability, make sure to follow proper compensation techniques, such as adding a capacitor in the feedback loop, and ensure that the gain-bandwidth product is not exceeded.
No, the TL061ACD is not radiation-hardened. If you need a radiation-hardened op-amp, consider using a specialized part like the RH1086 from Texas Instruments.