no ground wire on acos lustre gst-1

[bagudan]

Hi
I have made a plinth, and now I´m ready to hook up my Lenco l-75 with a acos lustre gst-1.

There are only 4 wires in the tonearm: red-white-green-blue.
I have checked for continuity from the arm itself to all of the wires, but there is no connection.
How do I hook up this arm, to the pre-amp gnd-terminal?

best regards
-Kasper

 

[rayma]

How do I hook up this arm, to the pre-amp gnd-terminal?

See if the arm base is adequate for a ground connection.
If that still gives hum, a small clamp around the tone arm tube
with a flexible thin ground wire should work if dressed neutrally,
just inside of the counterweight.

 

[bagudan]

Thanks. Ill give it a try

 

[rayma]

Thanks. Ill give it a try

A floppy, thin bare wire braid will work best, if it comes to that.