VCO tuning

[Tim Ressel]

Mark --

it is:

"Musical Applications Of Microprocessors"
Hal Chamberlin
2nd Ed.
Hayden Books #045768
ISBN: 0-672-45768-7

It is out of print, but it is worth the search. Every DIYer should own one.


Tim Ressel -- Hardware DQ
Hewlett-Packard
Verifone Division
916-630-2541
tim_r1 at verifone.com


> ----------
> From: 	mark scetta[SMTP:n0nspaz at loa.com]
> Reply To: 	mark scetta
> Sent: 	Tuesday, July 20, 1999 12:04 PM
> To: 	synth DIY
> Subject: 	Re: VCO tuning
> 
> i'm fairly new to electronics (i do have a tek 365 scope) and i would like
> to calibrate my JP8, JP6 and prophet 600 analogs. i would love to get the
> name of this book you are speaking about, or another book that would be more
> appropriate for someone like me.
> 
> thanks
> mark
> 
> 
> -----Original Message-----
> From: Tim Ressel <Tim_R1 at verifone.com>
> To: synth-diy at mailhost.bpa.nl <synth-diy at mailhost.bpa.nl>; 'jbv'
> <jbv.silences at wanadoo.fr>
> Date: Monday, July 19, 1999 9:28 PM
> Subject: RE: VCO tuning
> 
> 
> >Hal Chamberlin's book has you tune the VCO for 16.3525 Hz for a 0V input. I
> >don't think it really matters, as it is dependent on the VCO design. What I
> did
> >was settle on having an even voltage like 4 volts equal middle C. You can
> pick
> >whatever you like of course. The important part is having your slope set so
> a 1V
> >delta equals a 1 octave delta over the whole operating range.
> >
> >Tim Ressel -- Hardware DQ
> >Hewlett-Packard
> >Verifone Division
> >916-630-2541
> >tim_r1 at verifone.com
> >
> >
> >
> >> ----------
> >> From: jbv[SMTP:jbv.silences at wanadoo.fr]
> >> Sent: Monday, July 19, 1999 4:29 PM
> >> To: synth-diy at mailhost.bpa.nl
> >> Subject: VCO tuning
> >>
> >> Is there any "rule" for tuning a VCO with a 1V/oct input ?
> >>
> >> In several designs, I noticed that the VCO was supposed to produce a 15
> >> Hz freq
> >> when the CV input was 0 V... Is that a rule ?
> >> Or is there a standard tuning for a CV input of, say, +1V ?
> >>
> >> jbv
> >>
> >
>