It has a semi-modular structure and consists of 23 independent modules.
SoMa Laboratory Pulsar-23 Screw Organismic Drum Machine (pink)
SoMa Laboratory Pulsar-23 Screw Organismic Drum Machine (light green)
SoMa Laboratory Pulsar-23 Screw Organismic Drum Machine (white)
SoMa Laboratory Pulsar-23 Screw Organismic Drum Machine (orange)
SoMa Pulsar-23 Screw Organismic Drum Machine (rusty)
SoMa Pulsar-23 Turret Organismic Drum Machine (limited silver 1984 edition)