[sdiy] Buffer question

[Kyle Stephens]

*Star* grounding, not start. As in, one should start with star grounding, as to avoid any problems. Bleh.


_Kyle

--- On Mon, 1/30/12, Kyle Stephens <lightburnx at yahoo.com> wrote:

> From: Kyle Stephens <lightburnx at yahoo.com>
> Subject: Re: [sdiy] Buffer question
> To: "Elain Klopke" <functionofform at gmail.com>
> Cc: synth-diy at dropmix.xs4all.nl
> Date: Monday, January 30, 2012, 3:27 PM
> Check out the second page of the
> schematic here - uses 4013s as well:
> 
> http://www.musicfromouterspace.com/index.php?MAINTAB=SYNTHDIY&VPW=1024&VPH=500
> 
> One jack: one tip, one ring, one connection back on the PCB
> (consider .100" MTA connectors as well; they look neat and
> are a good servicing and assembly aid). This also promotes
> start grounding, ie: minimizes noise. The ground wire
> running alongside the signal wire, ideally the two being
> twisted together, will also help with noise.
> 
> 
> _Kyle
> 
> --- On Mon, 1/30/12, Elain Klopke <functionofform at gmail.com>
> wrote:
> 
> > From: Elain Klopke <functionofform at gmail.com>
> > Subject: Re: [sdiy] Buffer question
> > To: synth-diy at dropmix.xs4all.nl
> > Date: Monday, January 30, 2012, 2:09 PM
> > Thanks guys!
> > 
> > on a somewhat related note sort of... on a PCB would
> you
> > prefer an
> > individual connection to ground for each jack or a
> single
> > connection
> > to ground and all the jack grounds tied together at
> the
> > panel?
> > 
> > -Ian (1/4 inch 4 life) Smith
> > 
> > On Mon, Jan 30, 2012 at 3:59 PM, Loscha <loscha at gmail.com>
> > wrote:
> > > You would want a buffer to protect the output
> from
> > static as you plug
> > > and unplug, and also from the device you are
> plugging
> > it into, which
> > > might not like having that much current drained
> out of
> > it.
> > >
> > > On Tue, Jan 31, 2012 at 8:39 AM, Elain Klopke
> <functionofform at gmail.com>
> > wrote:
> > >> Hey all,
> > >>
> > >> Quick question, if I'm using a 4013 or 4520
> for
> > generating sub
> > >> octaves, do I need to put an op amp on the
> output
> > to buffer it or can
> > >> I send the output straight to a jack?
> > >>
> > >> -Ian (full of stupid questions) Smith
> > >>
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