@lewm , no argument from me.
Billwojo, given that an idler drive usually has much more torque than a belt drive reason would have it that you would have to worry about slippage with an idler much more than you would a belt drive. The rubber on every idler wheel I have ever handled is seriously less compliant than the stiffest belt. The Idler wheel is a direct connection between the motor and the platter. As a matter of fact than darn thing is jammed in between the shaft and the platter and held there with a spring loaded mechanism. At least the TD 124 had a belt between the motor and the flywheel/driveshaft.
Billwojo, given that an idler drive usually has much more torque than a belt drive reason would have it that you would have to worry about slippage with an idler much more than you would a belt drive. The rubber on every idler wheel I have ever handled is seriously less compliant than the stiffest belt. The Idler wheel is a direct connection between the motor and the platter. As a matter of fact than darn thing is jammed in between the shaft and the platter and held there with a spring loaded mechanism. At least the TD 124 had a belt between the motor and the flywheel/driveshaft.