[sdiy] Buffer question

[Kyle Stephens]

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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