K5synth

Yes, I saw them, but you get a lot of new problems
with the headphones output, it's still as noisy as
before, but there's a sudden gain boost when you rise
the volume which seems to clip the LM386 amplifier.

Maybe it's just a matter of filtering the power going
to the output chips, because the line outputs used
with a separate hedphones amp produces much less noise
than using the headphones output.

Now that I see that someone is interested, I'll start
to look for possible upgrades.

Antoine

--- caladann <caladann@yahoo. com> a écrit :

> I am very interested!! I saw some plans on the web
> to boost the
> output level by replacing some resistors, I dont
> know if you have
> seen them...
> Something must be done to bring this synth to its
> full potential!
>
> --- In k5synth@yahoogroups .com, "antdes45"
> wrote:
> >
> > Any features you'd like to have? Is anyone
> interested?
> >
> > I think I found a solution to have some external
> controls which
> > wouldn't require modifications of the synth case
> itself. I'll get
> into
> > details as I'm not 100% sure it would be
> convenient.
> >
> > --- In k5synth@yahoogroups .com, Antoine Deschênes
>
> wrote:
> > >
> > > Hi everyone,
> > >
> > > I told a while ago that I would make (or at
> least try to make) a
> new
> > > output stage for the K5 (To have less background
> noise) so I
> think it
> > > should be time to start making some schematics
> and try them! ;)
> > >
> > > The biggest problem I think I'll have is with
> the power supply.
> It only
> > > provides +6V DC to the opamps, and to get the
> best sound as
> possible, a
> > > new voltage would be requiered.
> > >
> > > I'll try to keep the current potentiometer
> working, and maybe
> add an
> > > option to bypass it so it could, as an example,
> have a fixed-
> volume MIX
> >; > and 1 to 4, but the volume control still working
> for the
> headphones, or
> > > something like that.
> > >
> > > I think I should make it as flexible as possible
> by using
> jumpers. (But
> > > I will not provide any external switches, that's
> up to you, I
> will
> > never
> > > drill an hole in the synth.)
> > >
> > > Any suggestions?
> > >
> > > Cheers,
> > > Antoine
> > >
>; >
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>

Antoine Deschênes

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