I'm trying to do some level shifting for interfacing with midi instruments.
I got this 6N138 lying around and want to try to achieve my goal with that.
I draw this schematic, could someone tell me if it will blow my raspberry away??!! Or my midi intruments?!

https://www.dropbox.com/s/agwjel2zt1ymj ... 2.jpg?dl=0
I also have some 4N35 lying arround. Just in case

Thank's for the help!