Hello,
I like to share by bad experience with
https://www.utsource.net/ (Who really telling about a good one
)
This store kind popular and recently redesign web interface to be more attractive, like: "used certify parts"
I had a few orders , recently i ordered NE5534 , OP27 - both shows a slew rate of 0.5 V/μs , top cleared by acetone. They excused and refunded to my utsource's personal account ...
So recently decided to cleared that refund to order something , That was LM3886, an i received an "excellent utsource original used certified" parts,
Re-sanded and re-labeled
Moral of the story: acetone your best friend to reveal truth , when you buying from UTsource. soo ... Beware and aware when purchasing "used certified" , probably "new certified" as well.
UPD: Haven't get any response back for a week about it, hope the will react, will update ...