Yeah, it’s been hit or miss for me too. I think the ‘print white twice’ was more understandable when the service was starting out and things were being established, but at this point it’s basically putting a failure of their service onto the consumer.
Those are ferrite beads. They’re labeled as inductors (the ‘L’ designator), but are a bit different. The specs there state the equivalent resistance at a given frequency.
Here they are mitigating EMI (like you’d see with the blocky cylindrical part of a power brick cord).
I’m not sure if those...
I would think a J201 would be a better choice for a source follower biased to Vref given that the Vgs(off) for the J201 is 0.3–1.5V and the 2n5457 is 0.5–6.0V. A 2n5457 on the upper extreme of the spec could clip, right?