SergeModular

hello Harry,

so, you're saying i have to connect the grounds of the
psu's even between a minijack to banana grounded
interface (i have one in my serge made by my tech) and
a minijack modular, because the grounding transfer via
the minijack cables is not sufficient?
ok, if that is the case then this would require a lot
of work, as i have two walls full of modulars to which
i connect the serge to...
the negative is that the minijack modulars psu do not
privide ready made banana ground sockets...
and about the 16awg cable you mentioned is the pomona
babana cables sufficient for this?

thank you Tickuing Harold,
best regards,
Bakis.



--- Harold Tique <sts7@...> wrote:

>
> Hello Bakis,
>
> Shields, as in your typical single-ended phone <=>
> phone or Mini-
> phone cables, are not suitable for grounding. These
> are not
> connectors! (that's they are called plugs and jacks
> as a seperate
> class from a connector)
>
> My friend at National semi, Bob Pease, told me,
> "Phone jacks are
> most closely related to relays as the "shield" is
> always floating -
> held in place by a mechanical spring loaded 'tip'".
>
> A connector, on the other hand, has all it's contact
> wiring points
> held individually by means a bi-fricated cup that
> grasps on two
> sides of its mating male "pin".
>
> The correct way to do it, Bakis, is to use what is
> called
> a "telescoping" shield wiring, were the shield is
> only connected on
> one end of the cable, but extends the lenght of the
> run and is then
> terminated (un-connected) as near to the opposite
> plug break out as
> possible. That way the shield "drain" goes in one
> direction thus
> prventing "ground loops" as the small potentials
> from the different
> power supplies involved are unequivalent and can
> create both
> unwanted audio (buss, noise radio pickup , etc.),
> sub-audio (DC/AC
> offsets that eat up power bandwidth) and sometimes
> super-audio
> oscillations (stuff you can't hear, but can damage
> or compromise
> equipment).
>
> The way to ground systems is through connecting the
> PS commons using
> 16 awg or better wire.
>
>
> This isn't a scare tactic as I'm not against
> inter-system workings.
>
> However, I am promoting more care and a deeper
> understanding of the
> requirments of the "interface" before you break out
> the marshmellows
> to cook 'em up on your rigs.
>
>
> 0000XXXx
>
> Chip_Puller
>
>
>
>
> --- In SergeModular@yahoogroups.com, Bakis Sirros
> <synth_freak_2000@...> wrote:
> >
> > if you ground the Serge (you will anyway, right?),
> the
> > ground is then transferred thru the minijack
> cables to
> > your minijack modulars. so cross-patching is fine.
> i
> > do it all the time.
> > if you want to cross-patch with another banana
> modular
> > then you have to ground the two banana modulars
> > together. the serge psu has a black ground banana
> jack
> > that is for tha purpose. i use that too and i also
> > cross-patch between my serge modular and my
> bananafied
> > Metalbox frac modules all the time.
> > everything works fine...
> > Serge should not be a 'closed system'.
> > Harry?
> >
> > best regards,
> > Bakis.
> >
> >
> > --- kkonkkrete <kkonkkrete@...> wrote:
> >
> > >
> > > Hello Mr. Tique
> > >
> > > Good point. I am very much a 'user' rather than
> a
> > > 'developer' of
> > > analogue things, so that hadn't even crossed my
> > > mind. Could be very
> > > dangerous I suppose. I'm used to just sticking
> my
> > > patch cables into
> > > any old sockets that come along, as long as it's
> > > V/Oct, I just assumed
> > > it would be OK. Perhaps it's better for me to
> treat
> > > any prospective
> > > serge acquisitions as closed systems, rather
> than
> > > attempt to bridge
> > > the gaps...
> > >
> > > any insight on the speed of the S&H unit?
> > >
> > > -- K0nk
> > >
> > >
> > > --- In SergeModular@yahoogroups.com, "Harold
> Tique"
> > > <sts7@> wrote:
> > > >
> > > > Hello Mr. Krete,
> > > >
> > > > I'm glad that all the great guys here in the
> SMOG
> > > either have been
> > > > helpful in showing the wonders the 'Greek
> orgy'
> > > style of Serge inter-
> > > > patchability.
> > > >
> > > > I personally have been through many
> synthesizer
> > > architectures and
> > > > patching paradigms (Buchla & Moog & EMS) and,
> > > after all that, found
> > > > the Serge far and away both the most flexible
> and,
> > > most important,
> > > > the most exciting & fun to play with!
> > > >
> > > > The question of "interface" is, on the `face'
> of
> > > it, a simple
> > > > matter of basic jack/plug type 'sex changes'.
> > > >
> > > > The reality of it is more complex, even in
> this
> > > beautiful world of
> > > > analogue we float in. There are several
> 'schools'
> > > of thought
> > > > prevailing out there representing the 'best'
> way
> > > to accomplish the
> > > > interconnectivity of the modules, set by the
> > > designer's personal
> > > > preferences and existing standards set down by
> the
> > > audio/broadcast
> > > > industries before them.
> > > >
> > > > One must do some study of the exact voltage
> > > requirements, plus
> > > > current source/sink and impedance
> considerations,
> > > to begin the
> > > > process of providing the mortar on which the
> > > bridge to
> > > > successful 'interfacing' rests.
> > > >
> > > > The single most important part of building
> this
> > > 'bridge', and the
> > > > most misunderstood, is the common referencing
> of
> > > the two (or more)
> > > > involved systems' signal and power "grounds".
> > > >
> > > > Deeper specifics fall into the range of
> > > consulting.
> > > >
> > > >
> > > > Cheers,
> > > >
> > > > Harry
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
>

=== message truncated ===



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