If you have a MK4 Turntable, please see this link.
If you have a MK3 Turntable, please see this link.
If you have a MK2 Turntable, please see this link:
If you need to identify what turntable you have, the following link may help – Turntable Models & Serial Numbers
The above prices apply to all variations of turntable (eg. 12″ armboard, dual armboard etc) as they are more niche and add little to used price.