[sdiy] Grounding of inputs/outputs for modules

[blacet at blacet.com]

I run a ground wire to every jack; sometimes a common wire to a group of
inputs or outputs but the more grounds the better. Typically 4 to 6 wires
go back to the common near the PCB power in.

It's all about keeping resistance low.

That's for panel mounted jacks. For the PCB mount ones, use a nice wide
trace. Separate ins and outs if possible.


>> I'm building some Eurorack synth modules. Normally when
>> wiring up jack sockets, I'd have the sleeve grounded, and the
>> signal on the tip. Is the ground necessary for synth modules?
>> Seems to me that with everything on the same power supply
>> (and therefore the same ground) I'm going to be creating lots
>> of little ground loops if I connect it.
>>
>> What's the standard practice for this?
>
> I ground everything on the panel.  I use bare aluminum panels, so I only
> feed one "panel ground" wire to a jack ring, and that takes care of
> everything.  It is very important to do this, in my experience.  My system
> is completely noise-free.
>
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