I was just looking to see if there was any updated software for my
"MMC Replay" cartridge, and I ran across information that the "MMC
Replay" has been discontinued
(http://www.vesalia.de/e_mmcreplay.htm), and is being replaced by the
"Chameleon 64".
Does anyone have any info on this? It looks like it will be
expensive (about 200 Euro), but I want one!
http://www.vesalia.de/e_chameleon.htm
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
I was wondering if anyone here has an 8-inch CP/M disk set for use with a
ThinkerToys Disk Jockey 2D/B.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I have brought my SWTPC 6800 system back to life that I built as a kid
in 1976. It is pretty heavily loaded with RAM cards, floppy controller,
etc. and the 8V power supply rail was never really able to hold its own.
It sits at about 6.5V now... driving many 5V regulators on the various
cards. No where near enough margin going into those.
So, I am contemplating the following,
1) rebuild entire power supply using three switchers, 7.5v unit nudged
up to 8V and two 12V units to supply +/-12 on the backplane. All of
these will fit inside the original cabinet in place of the linear
supply's transformer, giant electrolytic cap, bridge rectifier, etc.
I'd mount these switchers to an aluminum plate that would fit into the
chassis and use existing mounting holes thereby not drilling any new
holes in the chassis. This would be the least "period" solution but
allow all of the original cards to run in the machine with power to spare.
2) add a new transformer to the existing supply just for the 8V rail.
This will also fit but requires moving the existing transformer, cap,
DC distribution board-- all efforts that require drilling new holes in
the chassis. This would be a more authentic solution since I wouldn't be
introducing power supply designs that didn't exist back then. There were
actually published mods along these lines in the day but I am little
hesitant to butcher the chassis to accomplish this.
3) scuttle the legacy RAM cards, most of which are 4K in size built
with 2102's... and one 16K built with 2114... and replace them with a
single homebrew RAM card using one 32Kx8 SRAM drawing almost no power
in comparison to these old cards. Definitely not period and all the
authentic RAM cards would be sitting on the shelf then but the power
supply could remain unmodified.
Any recommendations on the best choice?
Chris
--
Chris Elmquist
I took a casual survey of parts needed for making a new run of P112 kits.
Good news! The hardest parts to source, the SuperIO chip, processor chip
and RS232 drivers are all still currently manufactured and the prices
aren't bad.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Hey folks, I'll be flying into San Jose tomorrow for the PLATO @ 50
presentation at the Computer History Museum. My flight gets into San
Jose around 3:55 PM, but the presentation at CHM doesn't start until
7 PM.
I wasn't planning on renting a car, so my mobility will be limited.
However, it would be great to meet up with folks for beer and/or
dinner before the PLATO presentation.
I'll be checking my email until about 10 AM MDT tomorrow (9 AM PDT).
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
> Why all this discussion about the iPad? For the stated purpose
> (reading PDFs) would not a similar-form-factor _designed specifically
> for that purpose_ serve much better? By now there are a bunch of
> "e-readers" with e-ink displays - which one of those is currently best
> for scanned PDFs (which is what in this context is the primary
> application!)?
>
> I know that many of the current ones have (fairly) low pixel density
> (thus bad for scanned text even if adequate for OCR'd documents) and
> many suffer from bad PDF support; but I'd expect that at this stage
> _someone_ has made one that is of a good size with high resolution.
>
> At least most of these now support slapping an SD card full of files
> into them, right? This way you're not tied to a network (wireless or
> wired).
While the iPad doesn't have an SD slot there is an adapter from Apple that acts as an SD card reader and USB connecter. Next time I'm at the Apple store I plan to pick one up.
Mark
--
Mark Dodel<madodel at ptd.net>
sent by ibisMail on my Apple iPad!
Also had trouble reading the images with Evince.
Here's a copy I could read:
The *BYTE* 6809 Articles (Jan?February
1979)<http://tlindner.macmess.org/wp-content/uploads/2006/09/byte_6809_articles.p…>
http://tlindner.macmess.org/wp-content/uploads/2006/09/byte_6809_articles.p…
30. Re: 6809 transistor count? (CSquared)
>
>
> ----------------------------------------------------------------------
>
>
>
> Message: 30
> Date: Mon, 31 May 2010 18:23:07 -0500
> From: CSquared <csquared3 at tx.rr.com>
> Subject: Re: 6809 transistor count?
> To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org>
> > I get about 40K transistors as ball park figure.
> > Ben.
> >
> Thanks for that link; I love reading stuff like that. I'll admit I've
> not diligently researched all the possibilities, but of all the
> 8-bitters I've ever encountered, the 6809 is definitely my favorite.
> The only problem I have with that pdf file is, with my Foxit reader
> anyway, all the pictures are blank. I need to go try it with Adobe to
> see if that matters. Any one else have that problem?
> Later,
> Charlie C.
>
>
>
> End of cctech Digest, Vol 82, Issue 1
> *************************************
>
Hi,
If anyone wants a Macintosh IIcx motherboard (free, and allegedly "new"),
please email me offline at sieler at allegro.com.
Board was found in the estate of a friend, box is marked as "new".
Board was unopened until I broke the seal so I could get the
model number:
Macintosh IIcx Apple Computer
820-0230-B (c) 1988
Preference goes to anyone who can pick it up in Cupertino, CA.
Otherwise, cost of shipping Fed-Ex is needed.
thanks,
Stan
My 2 pennorth,
The business of listing "4 systems you have had experience of" is a
little odd & seems to hint at an administration that don't know one end
of an electrolytic from the other, it's rather like choosing a builder
based upon "what type of housing stock he's worked on". ("Door
sticking?, No mate, I only do victorian terraces & 1930s semis")
Personally I was musing with the idea of volunteering when the kids are
both in school, as I'm 44 and have been doing electronics for about 42
years, and I'm not a million miles away, but it's going to kill me
seeing stuff rot, and not being able to get my hands dirty for the sake
of a piece of paper.
To Ethan Dicks,
7 years ago, you posted in an electronics forum, asking about how to install a composite video input into a cheap, 5 inch, 12 Volt b/w TV set. I've discovered how to do so, and if you're still interested but haven't found out, Let me know and I'll send you the info. I know this message may seem strange, coming to you so very looong after you first posted the question, but oh well...
Here is the link to the forum where you posted the question.
http://www.classiccmp.org/pipermail/cctalk/2003-March/020120.html
Sincerely,
Justin Newman
NewmansKnight at bellsouth.net
