Chaggy78
pfm Member
Hi guys,
I have a Grace G707 tonearm on an old Systemdek turntable and am using a Audio Technica AT3200XE MC cartridge which does sound good but when the arm is on the rest and I turn the volume up there is a very annoying humming noise. I did a continuity check with a multimeter and it appears that the arm post is grounded but the arm wand/tube and headshell is not. When I touch the headshell or arm tube with my finger the hum reduces a lot.
Is the arm tube supposed to be grounded also?
Thanks I really look forward to your replies/advice.
I have a Grace G707 tonearm on an old Systemdek turntable and am using a Audio Technica AT3200XE MC cartridge which does sound good but when the arm is on the rest and I turn the volume up there is a very annoying humming noise. I did a continuity check with a multimeter and it appears that the arm post is grounded but the arm wand/tube and headshell is not. When I touch the headshell or arm tube with my finger the hum reduces a lot.
Is the arm tube supposed to be grounded also?
Thanks I really look forward to your replies/advice.