Tox Modell

André Bach, Xavier Serge Martin, Marc Tegefoss and Arjen Schrama
Live at first Ultra night at Oktopus, photo by Ronnie Kroes 1980.09

Ultra, as you can read on quite a few places online, was an Amsterdam movement/scene/whatever happening around Oktopus club and Vinyl Magazine, circling experimental/post punk/electronics groups bla bla bla

The most interesting group among these, were undoubtedly Tox Modell, comprised of four guys line up, two guitars, bass and vocals, no drums, often switching duties among themselves. They were probably the closest things to the industrial "punk" of early SPK singles back than. They managed to create the same psycho-robotic sonic mayhem of the aussie pioneers.

Unfortunately only 3 songs were descent quality studio recorded (hopefully for some to pop up on the web as things always do) and released as a split with fellow Ultra's Plus Instruments, on a flexi disc included in a Vinyl Magazine issue.
Other than that, two gigs were released on tape by Lebel Period (run by the group's guitar player Marc).

1981.03.21 - Live at Groote Keyser, Amsterdam (Flac)
1. Electric Intermissions

Live at Parkhof, photo by Arie de Jong 1981.04.11

2. Numbers Two
3. Paris St. Lazare
4. Dustland
5. Stalingrad
6. Obedience
7. P.C.F.
8. Subanarchy
9. Marrakesh
10. Some Gaims

1981.04.11 - Live at Parkhof, Alkmaar
1. Numbers Two
2. Paris St. Lazare
3. Bye Bye Dutchland
4. Stalingrad
5. Obedience
6. P.C.F.
7. Marrakesh
8. Some Gaims
9. Sub Anarchy !!!!
10. Electric Intermission (Live at Simplon, Groningen, 1980.06.14)

1981.05 - Split with +Instruments (recorded 1981.03.26)
1. Paris St. Lazare
2. Stalingrad
3. Numbers Two

Ultra harsh and raw (including all three releases)
You should check out those live videos of Stalingrad and Numbers Two to know what you're facing with.