This Module is currently available.
DC Reference Selection, Multiple, and Bantam-3.5 conversion
This is a custom option expansion panel for the SequenceMix.
An 8-pin header allows selection of the reference voltage in 1V steps. This may be preset or connected to a rotary switch.
The bottom section in this panel is a multiple. 2 of the jacks are 3.5mm, serving as a converter. The jack marked phi provides phase inversion.
http://www.hinton-instruments.co.uk/paprod/modular/sequencemix/