dkelley Messages: 1 Registered: October 2009 Location: Vancouver Canada
Esquire
for anyone reading this in the future, most turntable motors have a recessed screw to adjust the motor speed. or sometimes there is an extra circuit board with a speed adjustment screw on it.
check vinylengine or similar sites for their turntable database in case there is a freely downloadable service manual available for your model, it helps a lot.
And hi by the way, my first post here (and no I'm no expert, but I do know a few things so I'll help where I can).
the duct tape, while clever, could in theory be uneven and creating a fluctuating speed overall, so I'd look into the speed control pot if I were the OP.