If the above procedures did not work
Here’s a quick debug procedure that might help...
- get a length of wire - about 6 ft
- attach one end to the ground pin only on a mains plug
- strip about 1/8" of insulation from the other end
- you now have a grounding lead
Insert the plug into any outlet
- touch the other end at various points on the arm to test it for grounding
- start at the head and work towards the back
If the hum goes away then the arm( or maybe the TT) needs to be grounded properly
If the hum does not go away - everything is grounded as it should be and the problem is probably inside the Turntable OR at the cartridge
You could also try - touching the open end of the ground lead to the neutral side of the RCA jack on the cable where the TT wire plugs into the pre-amp
If the hum goes away you can permanently fix the issue by connecting the open end of the grounding lead to the neutral side of an RCA plug and connect it to any unused RCA jack on the pre-amp.
Whilst this is not the perfect solution it will not harm any components
But I also concur with @ebm - your system components "deserve" a better turntable - technology has come a long way since either of the two turntables you mention,
Regards - Steve
Here’s a quick debug procedure that might help...
- get a length of wire - about 6 ft
- attach one end to the ground pin only on a mains plug
- strip about 1/8" of insulation from the other end
- you now have a grounding lead
Insert the plug into any outlet
- touch the other end at various points on the arm to test it for grounding
- start at the head and work towards the back
If the hum goes away then the arm( or maybe the TT) needs to be grounded properly
If the hum does not go away - everything is grounded as it should be and the problem is probably inside the Turntable OR at the cartridge
You could also try - touching the open end of the ground lead to the neutral side of the RCA jack on the cable where the TT wire plugs into the pre-amp
If the hum goes away you can permanently fix the issue by connecting the open end of the grounding lead to the neutral side of an RCA plug and connect it to any unused RCA jack on the pre-amp.
Whilst this is not the perfect solution it will not harm any components
But I also concur with @ebm - your system components "deserve" a better turntable - technology has come a long way since either of the two turntables you mention,
Regards - Steve