> On 07/10/2023 11:31 PM AEST Mike Katz via cctalk
> wrote:
> Way back in the 80's I was able to do stereo 4 part harmony on a 2 MHZ
> 6809 using two 8-bit D/A converters.
Much the same here. I recounted this on VCFed a few months ago about building a
simple 2-chip 8-bit ladder DAC with one-tr
Dennis said
> > Wait! There is a SCAMP other than Burroughs' Single Chip A-Series=20
> > Mainframe Processor.
>
> And then there's the SC/MP.
Here's a relic from IBM's first SCAMP, a large ring binder (16 rings!) from
Hursley, early 1960s. Unfortunately no SCAMP diagrams inside but to this da
> On 07/31/2023 6:59 PM AEST Christian Corti via cctalk
> wrote:
> On Sun, 30 Jul 2023, ste...@malikoff.com ste...@malikoff.com wrote:
> > Here's a relic from IBM's first SCAMP, a large ring binder (16 rings!)
> > from Hursley, early 1960s. Unfortunately no SCAMP diagrams inside but to
> > thi
Lee said
> Note "Scientific Computer and Modular Processor (SCAMP) was developed during
> 1961 and 1962" <> SCAMP (Special Computer APL Machine Portable) developed in
> the early 1970s and the subject of the original post.
Yes, I know. I still have that massive issue of PC World in which I read
> On 09/07/2023 2:36 AM AEST Mike Katz via cctalk wrote:
> Does VAX have nothing to do with vacuum cleaners?
Here in Oz, VAX has been a popular brand of vacuum cleaner for many decades. We
had one until recently.
https://www.vax.com.au/
Steve
Tim said
> Does anyone recognize the display tech that was used on the Concorde's
> in-cabin display?
> https://samchui.com/wp-content/uploads/2016/02/CON15.jpg
> https://samchui.com/wp-content/uploads/2016/02/CON16.jpg
It sort of looks like the extreme left and right edges are curved so I think
Andrew said
> Just found this article, and apparently the old displays were replaced
> with the new ones shortly after the grounding in 2000/2001. This would
> mean they are probably LCDs.
>
> http://www.concordesst.com/returntoflight/mods.html
>
> Also, here's a photo that very clearly shows t
I'm unable to find original Chassis-Trak rails where I am so I fit DEC gear
into H960s using modern server rack rails, cheap cabinet rails and aluminium
angle, and they all work acceptably.
Modern servers aren't anywhere near old DEC gear in weight so the thin modern
rails are out but there are
Mike wrote:
Hey there must be lots of vintage stuff at the south pole nobody ships stuff
back. :)
There is, and in the past I've acquired vintage stuff shipped back from an
Antarctic Base junk cleanup campaign via someone who was posted there
periodically. Not vintage computers though.
Also I'
cctalk is allowing attachments now? I was under the impression that these were
deliberately disallowed and filtered for bloat reduction or safeguard against
possible malware distribution?
I'd personally prefer no attachments on cctalk rather just post a link to
somewhere they can be retrieved f
Murray said
> On 04/04/2025 12:43 AM AEST Murray McCullough via cctalk
> wrote:
> I wonder if this helped start the microcomputer revolution, OS-side, or
> was this a re-hash of what already was available?
>
> It's a historical event as per se but much more than that I'm not sure!
Looking thro
> On 06/21/2025 11:47 PM AEST Gavin Scott via cctalk
> wrote:
> A paper-tape reader is easy enough, just something where you manually
> pull the tape past an optical reader etc.
>
> I have a ~cheap diode laser cutter and on my someday get around to it
> list is to write a paper tape "punch" prog
> On 06/23/2025 10:23 AM AEST ben via cctalk wrote:
> Https://unimplementedtrap.com/paper-tape-punch
Wow, that is seriously impressive!
It wasn't mentioned there, but the drill rod pieces could also be case hardened
for longer cutting life.
> > On Jun 22, 2025, at 19:19, ste...@malikoff.com steven--- via cctalk
> > wrote:
> >>> On 06/23/2025 10:23 AM AEST ben via cctalk wrote:
> >>
> >> Https://unimplementedtrap.com/paper-tape-punch
> >
> > Wow, that is seriously impres
> On 06/25/2025 11:32 AM AEST The Doctor via cctalk
> wrote:
>
>
> On Tuesday, June 24th, 2025 at 07:59, Mike Stein via cctalk
> wrote:
>
> > Paper tape isn't that difficult to make by slicing a wider paper roll such
> > as for PoS printers into appropriate widths; some folks have had som
> On 06/26/2025 3:08 PM AEST The Doctor via cctalk
> wrote:
>
>
> On Tuesday, June 24th, 2025 at 20:49, ste...@malikoff.com steven--- via
> cctalk wrote:
>
> > If you believe you can bandsaw the roll to a tape width of the nominal
> > 1.000"
>
> On 06/27/2025 10:30 AM AEST The Doctor via cctalk
> wrote:
but I don't know where to get fanfold paper anymore
I have an unfinished 3D print model for a 8-1/2" paper tape fanfolder I started
about 6 years ago when I first got my ALDI
3D printer. It consists of two drum wheels each with a c
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