For the Garrard 301/401 and Thorens TD-124 you don't need an expensive and space-wasting external controller.
A Keystrobe Pulser + Optibloc kit replaces the old internal analog speed controller with quartz-controlled pulsing. It's reasonably priced, is very well-made in the UK and it's very simple to install. I have rebuilt several TD-124s using this product and I think it's the single best upgrade you can make to your turntable.
As an added bonus, this unit negates the 50Hz/60Hz platter to mains match problem. Use any platter you like for 60Hz service.
A Keystrobe Pulser + Optibloc kit replaces the old internal analog speed controller with quartz-controlled pulsing. It's reasonably priced, is very well-made in the UK and it's very simple to install. I have rebuilt several TD-124s using this product and I think it's the single best upgrade you can make to your turntable.
As an added bonus, this unit negates the 50Hz/60Hz platter to mains match problem. Use any platter you like for 60Hz service.