Variant expander (black)


Out of stock

SKU: grayscale_.Variant expander black Maker: Types: , ,


– Voltages Expander for Permutation

The Variant module is a compact version of the original Voltages expander for the Turing Machine, with the added benefit of CV inputs to modulate the output levels (modulation range of -5V to +5V). Unlike Voltages, the POS and NEG outputs of Variant both have attenuators (on Voltages, the NEG output had an offset knob instead).

Variant connects to the GATES expansion header of Permutation using the supplied 16-pin to 16-pin ribbon cable and receives its power supply from the connected module. Note that the thick lines on the PCBs of both modules indicate proper cable connection (align the red stripe on both modules to the thick lines on the PCB).

Variant will work with either version of the Turing Machine but because the GATES header on Permutation is reversed compared to the Turing Machine, the bits are also reversed (8=1, 7=2, 6=3, etc). The functionality is otherwise identical.

Variant, like Voltages, is a “mixer” of sorts for the binary sequence of the connected Permutation module. The interface provides a different method of creating random voltages than the method used on Permutation itself.

The manual for all versions can be found HERE


  • 23 mA +12V
  • 20 mA -12V
  • 0 mA 5V
  • 30 mm deep
  • Power supplied by attachment to the Permutation module

Click here for aluminium silver panel version