Hello everybody. Blessings to all. I just built a king midas and sounds pretty good. I had a whistling noise that resulted to be the charge pump. I had a 7660s cpaz. Replaced it with a lt1054 pin 1 bended and problem solved. I think that the 7660s I got is poor quality. I’m trying to find new 7660’s from a trusted suplier and found on the mouser page few of them with different #s 7660ipaz, 7660cpaz, 7660scpaz, 7660a... Any help to makemthe right choice. Thanks.