Turbomaster
They were the bigger brother of the Turbopower range. Used a slightly more powerful motor. The 'activator' agitator uses a two-belt system: flat belt and poly-'V'.
When switched on in the upright position, the agitator should be mechanically disconnected; it should only turn when being used in the normal operating position, provided that the 'agitator-on' selector is activated.
Which version did you get: soft-bag, hard-bag, or hard-bag with tools attached?