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