Any chance of posting the ROMs here? I understand your not wanting to support people's tinkering with the wavetable circuits anymore, but it'd be cool to hear them. I am getting back into perfboard and working on a VCDO now, basically based on the CGS and Digisound. For VCO I have an SSM2030 which might work, but I will most likely see if I can make something with XR2206.
I am certain I can build the circuit, but I am still not so sure about creating the tables. How did you go about creating them, Ken?
CJ
I am certain I can build the circuit, but I am still not so sure about creating the tables. How did you go about creating them, Ken?
CJ
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> Go ahead. I do hope it is different. I misplaced the code ages ago.
>
> From http://web.archive.org/web/20030402020953/www.cgs.synth.net/pcb/index.html
>
> *CGS02_R1. This wavetable ROM is a custom wave table of 4 banks of 8
> waveforms. (NOT the Digisound wavetable) that I have created. I'm not sure
> of the origins of the waves, as I prepared the prototype ROM some time ago.
> Some may have been modified from the PPG. Some are definitely custom. All
> wave forms are 64 step. They are supplied on a second-hand (used) 2716. Each
> ROM has been tested in my own wavetable module. The price covers the cost of
> the device (yes, I had to purchase them) and the amount of time I have to
> stuff around to actually burn them. The banks in these are a subset of the
> CGS02_R2, and the actual banks present may vary between ROMs. Lucky dip!
> There are only a limited number of these available. This ROM is NOT
> compatible with the Blacet Miniwave.
>
> #CGS02_R2. This wavetable ROM is an expanded version of CGS02_R1, a custom
> wave table of 8 banks of 8 waveforms. (NOT the Digisound wavetable) that I
> have created. I'm not sure of the origins of the waves, as I prepared the
> prototype ROM some time ago. Some may have been modified from the PPG. Some
> are definitely custom. All wave forms are 64 step. They are supplied on a
> second hand 2732. Each ROM has been tested in my own wavetable module. The
> price covers the cost of the device (yes, I had to purchase them) and the
> amount of time I have to stuff around to actually burn them. These will only
> work in the later CGS02 version of the wave table. There are only a limited
> number of these available. This ROM is NOT compatible with the Blacet
> Miniwave. Note: The four banks of CGS02_R1 are on this ROM, along with
> another four banks.
>
> From http://web.archive.org/web/20041018074514/www.cgs.synth.net/pcb/index.html
>
> *CGS02_R3. This wavetable ROM set consists of two 2764 chips and contains an
> array of custom wave tables of 8 banks of 8 waveforms at 128 bytes per wave
> that I have created. They are experimental in nature. Some a good, some not
> so good. This is the only ROM option available at the moment because I no
> longer have access to a ROM burner. The supplied ROMs are SECOND
> HAND/RE-USED devices. This ROM is NOT compatible with the Blacet Miniwave.
>
>
> >Ok,thanks.
> >
> >I was actually asked this by someone who owns the Digisound VCDO and
> >was looking for other ROMs. If this one is different, would it be a
> >problem
> >if I run a copy for him?
> >
> >
> >On 21 mei 2009, at 01:14, sasami@... wrote:
> >
> >> I think the Digisound one was a red labeled 2716.
> >>
> >>> I know I have asked this before, but I seem to have misplaced the
> >>> reply...
> >>>
> >>> I have the blue labeled 2716 EPROM and green and red 2764.
> >>>
> >>> Is the blue labeled one the Digisound ROM?
> >>>
> >>>
> >>>
> >>>
> >>> ------------------------------------
> >>>
> >>> The CGS Modular Synth home page: http://www.cgs.synth.net/
> >>> Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>>
> >> _______________________________________________________________________
> >> Ken Stone sasami@... otherunicorn@...
> >> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> >> Australian Miniature Horses & Ponies <http://www.blaze.net.au/
> >> ~sasami/>
> >>
> >>
> >>
> >> ------------------------------------
> >>
> >> The CGS Modular Synth home page: http://www.cgs.synth.net/
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>