[sdiy] eurorack busboard with star ground

[Danjel van Tijn]

Hey Laurie,

What you are describing is exactly what I meant but did not articulate
clearly enough.

The Doepfer and Ken Stone boards have a single ground line shared by
all the connectors (and running underneath them). It would be better
if the ground lines from each header were routed separately (with nice
wide tracks) to a single star point.

The resulting pcb will be bigger but it will alleviate a lot of
problems many users have with audio bleed on their euro systems.

cheers,
    Danjel



On Sun, Mar 22, 2009 at 9:18 PM, Elby Designs - Laurie Biddulph
<elby_designs at ozemail.com.au> wrote:
> I am not sure that this would actually be an easy thing to make. Assuming, say, 8
> buspoints, that would require 8 separate grounds running to the star point. the
> board would start to get quite wide or would be better as a round pcb with the
> star in the middle.....
>
> Wouldn't it be easier to treat the busboard itself as the star point? With
> subtsantial ground tracks to teach connector the end result i would have though
> would have been as good.
>
> Best regards
> Laurie Biddulph
> www.elby-designs.com
>
> On Mon Mar 23 14:32 , Danjel van Tijn  sent:
>
>>Has anyone made a eurorack (doepfer) busboard with star grounding scheme?
>>
>>If so, is there a PCB available to buy? This is an easy thing to build
>>(and an easy thing to make a PCB layout for).... seems like it would
>>be a popular product if it existed.
>>
>>
>>cheers,
>>Danjel
>>_______________________________________________
>>Synth-diy mailing list
>>Synth-diy at dropmix.xs4all.nl
>>http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>)
>
>
>