Here is the full list of all 12 Ether One achievements.
Rang the bell in the Institute upon your return.
Swapped the fuse in Restoration Chamber 3.
Taken every Core Memory photograph.
Restored all of the plaques.
Fill the shelves in The Case.
Restored 20 Projectors.
Collected all the Memory Fragments.
Heard the complete tale of The Knocker.
Listened to all the Voicemail messages.
Restored 15 Projectors.
Restored 10 Projectors.
Restored 5 Projectors.