Here are some of my favorite that I know are on LP:
The Orb-UFOrb
The Orb-Adventures Beyond The Ultraworld
Global Communication-76:14
Pete Namlook-Air I
Pete Namlook-Air II
Boards Of Canada-Music Has The Right To Children
You might like some of the Ultravox and John Foxx lps for more pop-based electronic music ala Numan,Human League,OMD, etc.
Future Sound Of London-Lifeforms
Future Sound Of London-Dead Cities
Klaus Schulze-numerous albums
Tangerine Dream-I prefer their early '70's to about '80 releases such as Rubycon, Phaedra & Stratosfear
The Edgar Froese(of T. Dream) solo releases Aqua and Stuntman are also i this vein
Syzygy-Morphic Resonance
Bola-Soup
Bola-Gnayse
Higher Intelligence Agency-Freefloater
Higher Intelligence Agency-Colourform
Speedy J-G-Spot
Peace Orchestra-Peace Orchestra(or just about any Kruder & Dorfmeister related albums)
Anthony Manning-Concision
Irresistible Force-Flying High
Irresistible Force-Global Chillage
Irresistible Force-It's Tomorrow Already
Distance-My Demons