Record clamp for Revox TT's ???

Does anyone know of a low profile record clamp for Revox TT's ? Bare in mind that these use their "brick" shaped linear tracking arm that almost swivels over the spindle. As such, the clamp ( or maybe more like a "weight" ) would have to be relatively flat or sloped very sharply in order to work with this design for reasons of clearance. I had seen a brass clamp ( more like a weight ) on Ebay designed specifically for these tables, but i don't know who made them. Most regular clamps won't work. Anybody have ideas / suggestions ? Sean
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