Description Large collet knob for Oberheim Synthesizer Expander Module (SEM), Two Voice Synthesizer (TVS-1), Four Voice Synthesizer (FVS-1) and Mini-Sequencer. This also serves for the lower half of the knob set on the dual concentric pots (e.g. Mini-Sequencer Control Voltage Presets) and vernier pots (SEM VCO Frequency). Knob cap and pointer sold separately. Large skirt with white pointer is obsolete and unavailable. Related

