1974:
1.
Faust -
Faust IV

Totally accessible, fun, and at the same time innovative krautrock. A true masterpiece.
2.
Brian Eno -
Taking Tiger Mountain (By Strategy)

Not quite as adventurous as his debut, but lovely nonetheless. 'Burning Airlines Give You So Much More', 'Mother Whale Eyeless', and 'Third Uncle' are favorites.
3.
Kraftwerk -
Autobahn

Definitely one of the greatest electronic albums of all-time. To me, this is Kraftwerk's finest hour. If you listen to any one of their albums, have it be this one.
4.
Sparks -
Kimono My House

Nobody did powerpop better than Sparks, in my opinion. It's not just Russell Mael's operatic vocals - their lyrics are great, and the music perfectly complements the rest of their style. This or "Indiscreet" are their best records.