This Project gives details of design and construction of a +/- 12V 150mA IC power supply to power this interface. The 150mA capability is quite sufficient to power a typical analog circuit being breadboarded.
While the 12V battery trickle charger circuit was based on a flyback SMPS, this design is based on a half-bridge self oscillating SMPS.
The Aj_Dual12V150mA_IC Supply.zip
file provides full details of the Text-Book Design, Schematic, CAD files and construction.