Oddbean new post about | logout
 I think it's that voltage regulator/mosfet right in the middle.

https://digipres.club/system/media_attachments/files/113/303/878/774/586/084/original/affdc73e920a771b.jpeg 
 You. What are you?
UTC 10N65KL... Unisonic Technologies 10A, 650V N-Channel Power MOSFET. 

There we go.

https://digipres.club/system/media_attachments/files/113/303/899/420/978/899/original/8f7b62d3959e5947.jpeg