Texas Instruments RC4558P Operational Amplifier (Pack of 10)

These are great. They went into an only PEAVEY BACKSTAGE PLUS Amp form the 80's. The old chips gave off a slight hiss from damage over the years. These worked great and the Amp sounds like it once did. It required three chips in it. I have played several hours with the new chips and all is well.

Worked good for my application. Repairing old bass amp.