3 Indie/Minimal Synth ID's from late 80's

[rave_c]

Hi!
Can anybody put names here? Long time unknown!
Thx in advance :)

http://www.virtualfrequencies.com/Downloads/Choco2.mp3
http://www.virtualfrequencies.com/Downloads/Desc1.mp3
http://www.virtualfrequencies.com/Downloads/Desc2.mp3