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Trouble with TL072 op amp in audio preamp build

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kasuo
kasuo picture

Hi everyone,
I'm experimenting with the TL072 in a small audio preamp project, but I’m running into some confusion. The circuit powers up, but I’m hearing noticeable noise and distortion when I increase the gain. I’ve double-checked the wiring and power supply (±12V), and the pinout seems correct.

Could this be related to the package type (SOIC vs DIP) or do I just need better decoupling caps? Also curious if there are drop-in equivalents that might perform a little cleaner.

Any advice would be really appreciated!

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TonyStark
TonyStark picture
****

Hello!

It's hard to help without knowing the wiring diagram.

Regards, 

Tony

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