DIY Switch Box

All components, plates drilled awaiting cables (?) & soldering up....

I would be happy to do that Ifor but need someone technically savvy to confirm if this would cause capacitance issues before a phono stage (ie similar to my question below). I have a feeling it will.

Edited by Drewan77 - 16 Feb 2018 at 4:19pm

The usual thing to do here is twist the ground lugs through 90 degrees and thread a stout piece of tinned copper wire through to form a low impedance ground. Left and right grounds could be isolated from each other, but what about shield continuity? If the case is to shield the signals effectively it should be connected to the commoned socket grounds. Assuming the output being at one end, then connect the furthest input's grounds together and take them to a screw head (in the rear panel) using a solder tag. It is also a good idea to distress the anodising in the contersunk area around each screw hole using a centre punch to allow the screw to bite onto bare metal, as anodising does not conduct. Hopefully the screw threads will wear off any anodising in the screwport threads.

(EDIT) don't forget to use a serrated washer under the rear panel grounding screw head or it won't conduct, and check using the continuity tester on a multimeter that all metalwork is conducting with each other.


Edited by Graham Slee - 16 Feb 2018 at 7:09pm