CUCUPAIODual Op Amp IC - TL072

My chips arrived in a timely manner and packed quite well. Works as expected

This solved the Amp's noise issue after suspecting a bad preamp tube. It arrived on time and works well. It came as a set of 4. Now I have 3 spares in stock.

I have tried them all and this OP Amp has the best tone of all the preamp OP Amps i have tried.

Works great