[sdiy] sn76477 external control

[Dave Magnuson]

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:
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