Hi Piero,
I have never used the Loricraft power supply, but unlike most other designs this was designed for the Garrard motors and a version is used on Loricrafts own Garrard 501. As you rightly suggest, most turntable power supplies lack the ability to properly drive the Garrard motors, as they were designed for the much weaker motors used for belt drive decks.
I have a link here for the Loricraft PSU's
http://www.garrard501.com/psu2.html
expensive aren't they?
"Always carry a large flagon of whisky, in case of snake bite and, furthermore, always carry a small snake."
Kevin