It's the one to the right of the TS-808.
![Image](http://www.jamiebrowning.pwp.blueyonder.co.uk/hmm.jpg)
It appears to have two Fender-style (think Bronco/Fender Blender aluminium skirt) control knobs and a single, central foot switch. At a glance it looks a bit like a Dunlop Uni-vibe, but not.
Any ideas, folks? I've not seen anything like it.