Hi Ken,
Yeah, now that I examine it closer, they really aren't different. What
threw me off (other than a misplaced wire) was a pinout that I found showing
pin 2 as the only connection for D1+4 (where the original data sheet had it
as 'no connection') before I found the Thomson data sheet, which has it back
in the original position, plus pin 2 is labeled D1+4 as well as pin 13.
Anyhoo, I got it working last night. Thanks for the data sheet, Dave, and
sorry to take up your time, Ken. It's a fun chip to work with, BTW. I've
got a comparator on the front end so that I can feed it noise and other
signals. I'm then buffering the outputs and using them for gates and also
to mix through pots into a mixer for random tunes (16 levels of variation
are possible this way - 64 if I use the D+5 outputs). It's a Stone/Buchla
inspired kind of thing...
I plan to use the outputs for addressing other functions randomly or
semi-randomly. Addressing a simple DAC with the 6 outputs is something I'd
like to try (again, 64 levels, but no pots to futz with).
Cheers,
Scott
Yeah, now that I examine it closer, they really aren't different. What
threw me off (other than a misplaced wire) was a pinout that I found showing
pin 2 as the only connection for D1+4 (where the original data sheet had it
as 'no connection') before I found the Thomson data sheet, which has it back
in the original position, plus pin 2 is labeled D1+4 as well as pin 13.
Anyhoo, I got it working last night. Thanks for the data sheet, Dave, and
sorry to take up your time, Ken. It's a fun chip to work with, BTW. I've
got a comparator on the front end so that I can feed it noise and other
signals. I'm then buffering the outputs and using them for gates and also
to mix through pots into a mixer for random tunes (16 levels of variation
are possible this way - 64 if I use the D+5 outputs). It's a Stone/Buchla
inspired kind of thing...
I plan to use the outputs for addressing other functions randomly or
semi-randomly. Addressing a simple DAC with the 6 outputs is something I'd
like to try (again, 64 levels, but no pots to futz with).
Cheers,
Scott
----- Original Message -----
From: <sasami@...>
To: <cgs_synth@yahoogroups.com>
Sent: Saturday, March 06, 2004 2:22 PM
Subject: Re: [cgs_synth] Digital Noise
> As far as I can tell, the pin-out is the same. The only difference is in
the
> labels. One brand labels them D1 D2 etc, while the other uses a number
that
> actually relates to the stage number in the shift register.
>
> For what it's worth I appear to have used a HEF4006 by SGS in one of mine.
> I'll ahve to pull things apart to look at any others.
>
> Ken
>
> >Talk about serendipity - last night I decided to try some ideas I've had
for
> >the 4006 shift register, so the first thing I did (to make sure I had it
> >running right) was to hook some LED's up to the outputs and watch what
they
> >did. It definitely *wasn't* working right.
> >
> >To make a long story short, the shift registers I have are MC14006, the
data
> >sheet I was using was for the National CD4006BM/CD4006BC. I couldn't
find
> >anywhere to get the datasheet for the MC14006 (without *paying* through
the
> >nose) - I found a datasheet for the SGS-Thomson HCC/HCF4006B that had a
> >different pinout - and this was the pinout that worked for the MC14006's
> >that I have. Anyone else ran into this varying of the pinouts on the
4006?
> >Does anyone have a datasheet for the MC14006?
> >
> >Take care,
> >Scott
> >
> >
> >----- Original Message -----
> >From: <liquidcolor@...>
> >To: <cgs_synth@yahoogroups.com>
> >Sent: Saturday, March 06, 2004 12:17 AM
> >Subject: [cgs_synth] Digital Noise
> >
> >
> >> Just finished building my proto Digital Noise. Great module.
> >>
> >> http://metalbox.com/hardware/jpg/diginoise.jpg
> >>
> >>
> _______________________________________________________________________
> Ken Stone sasami@... or ken@...
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>
>
> See the following URLS for the CGS Modular Synth home page:
> Main: http://www.cgs.synth.net/
> Secondary: http://otherunicorn.0catch.com/synth/
> Yahoo! Groups Links
>
>
>
>
>
