Grounding off of the shield....OK or not.

[McCvinyl]

I am just finishing a tonearm rewire and can not fit the earth through the grommet I have attached to the bottom of the arm.

The left and right tonearm wire coming from the bottom of the arm has been shielded with a metal braid (connected to earth internally) so I am thinking of just connecting an earth wire on to that but not sure if it will create any issues.

Edited February 13, 2024 by McCvinyl

[audiofeline]

By the "earth" I assume you are referring to the insulated single ground wire, and not the -ve l+r wires. 

 

Is the grommet used for strain relief?  If so, either use the grommet (see below), or create a new strain relief for it. 

 

If you have a rubber grommet you can make it bigger with a drill bit.  Use progressively larger bits, you will get a feel for when the bit shaft starts to wear the rubber down.

 

 

[McCvinyl]

Yes I meant the ground wire.

l am not sure if grommet was the right term or not but it is steel which I tapped a thread into the nylon base so it would be tricky to drill 

[audiofeline]

What does the steel add to just using the nylon?

What's the tonearm?

[McCvinyl]

It has an olive type arrangement that locks on to the cable.

Previously it was heatshrink tube glued into the nylon.

It is a Bokrand tonearm.

[PicoWattson]

Called a cable gland, screwing the nut on constricts the internal grommet and holds the wires firmly in place. I asume you can't feed the ground wire through because it has been terminated with a cable lug? If so cut it off and crimp a new one on once through.

Edited February 13, 2024 by PicoWattson

[audiofeline]

Does the weight of the metal upset the balancing of the arm/platter?
Why not glue heatshrink again? If the tonearm wires are attached to RCA sockets on the plinth there won't be a need for strain relief, only cable management.  There are other ways to achieve strain relief if required.

[McCvinyl]

9 hours ago, audiofeline said:

Does the weight of the metal upset the balancing of the arm/platter?
Why not glue heatshrink again? If the tonearm wires are attached to RCA sockets on the plinth there won't be a need for strain relief, only cable management.  There are other ways to achieve strain relief if required.

Tonearm wire is a full run to the SUT  so I want to get a solid strain relief after breaking the original wire with the glue and heat shrink method.

Arm is on a heavy Lenco project so no issues with balance.

Thanks for input guys but I have got it sorted now by soldering some welding wire on to it and feeding it through.

[audiofeline]

Pleased all is sorted, now you can put some time into enjoying it!

I haven't heard of the Bokrand tonearm before, I did a quick google and it appears to be quite nice, and rare. 

[McCvinyl]

Thanks Rob

l am pretty pleased with how it has turned out with the cable now nice and solid.

I was impressed with the sound before l tore the cables out of it so l’m a bit excited to see what improvements l gain with the Zavfino silver wire.