[sdiy] sn76477 external control

[Rude 66]

that may be wordt a try if it doesn't destroy the synth.could it?

 the half octave range (and playing backwards,remember..) doesn't bother me
too much because it's basically a noise box, and i can always sample a sound
and then play it. it's not my only synth.. though 1 or 2 octaves would be
cool. but it has 3 switches controlling range (sort of 'lo, mid, hi') so in
reality the problem is probably there, as in the cv-in only controls the
selected range, not the whole possible range. i've tried selecting all 3
together, but that doesn't make it better either..;-)

r./




----- Original Message -----
From: "Dave Magnuson" <resfreq at hoohahrecords.com>
To: "Rude 66" <r.lekx at chello.nl>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, May 29, 2002 2:56 AM
Subject: Re: [sdiy] sn76477 external control


> The SN76477 is a single-supply chip, right?  Someone figured out you can
> get more range/linearity from a 566 VCO by powering it between GND/V-
> instead of V+/GND.
>
> Perhaps the same can be done here?  A half octave would KILL me.
>
> Dave
>
> At 01:53 AM 5/29/02 +0200, Rude 66 wrote:
> >thanks! those articles included some good ideas.. it turned out to be as
> >easy as soldering pin 16 to an external jack input for the cv. it's now
> >happily chugging away arpeggios. also kinda found my gate mode again.. so
> >even no need for external machines. i am happy, though it has a range of
> >about 1/2 octave through external cv, and it's backwards too. maybe it's
> >compatible to the kawai 100f..:)
> >anyway, i can finally start with those sicker than sick basslines i've
heard
> >this thing play in my mind..
> >
> >r./
> >
> >
> >
> >----- Original Message -----
> >From: "Ullrich Peter" <peter.ullrich at kapsch.net>
> >To: "Rude 66 " <r.lekx at chello.nl>
> >Cc: <synth-diy at dropmix.xs4all.nl>
> >Sent: Tuesday, May 28, 2002 8:52 PM
> >Subject: RE: [sdiy] sn76477 external control
> >
> >
> >Hallo!
> >
> >>the only thing i haven't quite figured out is the external control. when
> >>i first got it, it reacted to my mono/poly's arpeggiator, doing gate and
> >>limited pitch. it has inputs for that, which don't seem to be working
> >>naymore.
> >>since this is basically someone else's project, it's kinda hard to
> >>figure out what does what. does anyone know how to add especially cv-in
to
> >>the
> >master oscillator? to gate it i can always run it through another
> >>synth,but some kind of external pitch control would be nice.
> >
> >Have a look at the articles with the SN76477 on my homepage
> >http://www.ullrich.at.tt !!!
> >
> >Switch to English if you want / then Music / and then click on my old
> >SN76477
> >synth near the bottom of the page. There is also a project with a
keyboard!
> >
> >Ciao
> >Peter
> >
> >http://www.ullrich.at.tt
> >
> >
>
> Resonant Frequency:
> resfreq at hoohahrecords.com
> http://www.hoohahrecords.com/resfreq/index.html