In Oblivion there is a scene where Jack takes us to his Earthly getaway that only he knows about.
Some background on when this film takes place is approximately 2077 and the war with the scavs occurred in 2017.
This is a bad video of that scene:
In that scene we see electricity being used, but the light bulbs are incandescent light bulbs and he is playing music from a most likely 1980's vinyl record player.
What I can't understand is, if it was 2017 when war broke out, being that anything he finds seems to amount to not much. Should we have not seen a heap CD's or DVD's and CD player? Not vinyl records and for that matter a record player from the 1980's would be extremely difficult to come across in a war torn Manhattan in 2017? Also, maybe fluorescent light bulbs or LED's (Especially if Jack wanted to save energy)