You need to solder a wire to the case of the motor and connect it to the base of the tone arm, and then to the ground post of your phono input.
Can you ground A Rega turntable?
Have a Rega RP 3 turntable and was wondering why it doesn’t have a ground and is there any way to ground it? There are times not often but times when I go to lower the tonearm when I touch the lever I get a hum. Doesn’t happen often but it seems I need a ground. Thanks for any help.