[sdiy] Grounding of inputs/outputs for modules

Dave Manley dlmanley at sonic.net
Fri Aug 3 19:16:10 CEST 2012

I seem to recall you're a materials type, so pardon the question, but doesnt aluminum oxidize?  Can a mechanical panel to socket connection be trusted electrically long term?   These are dis-similar materials as well, no?


-------- Original Message --------
 From: David G Dixon <dixon at mail.ubc.ca>
 Sent: Fri, Aug 3, 2012 09:54 AM
 To: 'Tom Wiltshire' <tom at electricdruid.net>; 'synthdiy diy'	 <synth-diy at dropmix.xs4all.nl>
 Subject: Re: [sdiy] Grounding of inputs/outputs for modules

>> 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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