There is more than one band called Vacuum: 1) a swedish syntpop formation
2) a Dutch punk band (see http://www.last.fm/music/Vacu%C3%BCm)
3) an Italian black metal act
4) a czech doom metal band
5) a Chilean powerviolence band
6) a New Zealand early punk band Bill Direen (guitar,vocals) Stephen Cogle (bass,vocals)
Peter Stapleton (drums) Brendan Arnold (percussion & vocals) Peter Fryer (organ)
Allen Meek (organ) 1978 - 1979

Read more about Vacuum on Last.fm.