All:
As I clean the shop a bit I've come across a few things to
trade. As I continue working, I'll pull some other things together and post
them.
So far:
* NEC 8080 evaluation kit "EVAKIT-8" includes board and manuals.
* "Inside Commodore DOS" book
* Various BYTE mags (YR:MO):
o 75/12
o 76/4
o 77/2, 3, 10, 11
o 78/1-6, 9
o 79/1, 5-7, 9, 10, 12
o 80/4, 7, 1, 10
o 81/3-5
o 82/full year
o 83/3, 8
o 84/3
Wanted:
* "vintage" 5.25" external floppy drive case suitable for two drives
(preferably full-height but half-height OK)
* CP/M boot disks/CBIOS/loader listing suitable for SD Sales
VersaFloppy controller
Location: 11791
If interested, please contact me off-list. Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/>
http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
I exchanged several emails today with an eBay seller offering an Altair
system with disk drive for a starting bid of $2 in a one-day auction.
This is a bogus offer - I became uneasy when the seller solicited an
offline offer in response to a query about shipping but insisted on
payment through Western Union rather than PayPal, even though the
orginal auction listed PayPal as a preferred option.
It is interesting to note that the auction I saw this morning (offered
by seller DOCHANDS) was cancelled by eBay almost immediately but the
_identical_ auction (same pictures and extensive text) is currently
(2/21/06 @ 11:31 pm) being offered by two different sellers - as auction
6038449898 by GUNDAN760 and as auction 6038549050 by SHARISINA. It looks
like the "seller" is hijacking legitimate eBay accounts to use as bogus
fronts for his dealings.
Caveat emptor.
Jack
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2/20/2006
what you get someone whos got everything else. Or at
least every other IBM incompatible on the planet (ok
Im not quite there). Also a must for the truly
masochistic (gcr floppies). What every guru/sicko
needs. Alas the shipping is prohibitive if youre on
this side of the pond.
--- Free_Software_for_DOS at yahoogroups.com
<d_andrianov at mail15.com> wrote:
>
> I don't know if there is a mirror... But I have
tried
> downloading the files again and it works! Try
> downloading later. By the way, the program is just a
> much more functional version of GS which is already
on
> the Free Software For DOS website.
>
> Denis
>
>
> > Short Stop's Pages
<short_stop_for_software at yahoo.com>:
>
> > On 9 Feb 2006 Denis Andrianov wrote (snipped):
> >
> > > Tja, hier habe ich geplant, andere Programme zu
> stellen, die
> > > eventuell von Nutzen sind. Die kriegen
allerdings
> keine technische
> > > Unterstützung* von mir. Aber ich freue mich
> auf Bescheid, wie
> > > das Programm bei dir funktioniert hat... and
bugs, too!
> >
> > :) I recognized that broken German text,
because...
> >
> > > Hi everyone. It has been very quiet lately on
this
> > > mailing list. Anyway, here is something
interesting. A
> > > new (2005) port of Ghostscript is now available
for
> > > DOS. ............ Please
> > > add this link to the Free Software for DOS site:
> > > http://www.caddit.net/programming.php.
> >
> > ... I've visited that site repeatedly since
December,
> and tried to
> > download the Ghostscript binary and source
packages,
> but no luck - the
> > server stops serving. I know for sure that's the
> problem, because I get
> >
> > its timeout message, appended to the part of the
ZIP
> file that actually
> >
> > comes down the pipe.
> >
> > So until that problem gets fixed, and I can look
the
> program over, I
> > can't recommend it in the Free Software pages.
> >
> > Denis - do you know if there is another download
site?
> >
> > Peace,
> > Steve @ Short.Stop
> >
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam
> protection around
> > http://mail.yahoo.com
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
>
>
> Yahoo! Groups Links
>
> <*> To visit your group on the web, go to:
>
http://groups.yahoo.com/group/Free_Software_for_DOS/
>
> <*> To unsubscribe from this group, send an email
to:
>
Free_Software_for_DOS-unsubscribe at yahoogroups.com
>
> <*> Your use of Yahoo! Groups is subject to:
> http://docs.yahoo.com/info/terms/
>
>
>
__________________________________________________
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http://mail.yahoo.com
the talk of a peculiar USR pc made me remember this.
There used to be a (primarily) electronic junk store
in LI called Eldies (Edlies?) on Hempstead Tnpk in
Levittown I guess. Sitting there one day was an all in
one, IIRC, NCR unit that booted up to an a:> prompt.
It struck me as a weirdish dos semi compatible. It
didnt strike me as a PC4 or the nearly identical
Decision Mate (cpm). Pretty sure it was NCR, but eh
maybe it was NEC (definately NOT an APC, not quite
that big and heavy). Anyone have a clue?
__________________________________________________
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I was hoping someone on this list might have some input on this. I have also posted this to alt.sys.pdp8. I have a pdp-8i with a memory problem. Here is the post from alt.sys.pdp8:
Quite some time back while scoping out a problem I shorted a pin in my
8i backplane and lost memory control. Since that time Vince and I have been trying to figure out where the problem is to fix it. I don't know what pin I shorted as at the time I did not realize
I had damaged anything. The +5v breaker tripped though.
The problem is I can not deposit or read back any memory locations.
The MB is displayed correctly on a deposit. Scoping signal has shown me a very odd signal on B FIELD 0 (1) when the machine is in run mode. It has a wave form on it rather than just a normal
voltage. The oddest thing is the high point of the wave goes up to +6v with a bit of the beginning of the top portion going above +6v. To me this should not be. How can I get
+6v from a system that is using +5v as it's input voltage? We have
some theories but nothing concrete as yet. The other thing is if I remove all 3 G228s (A36, B36, B37) the
signal goes away. I do not have parity memory so nothing is in A37.
We believe there is a bad ground somewhere, but I have not been able to determine where. I do not have a wiring list so I may have to trace some signals manually. I think I have to find all the places the B30L1 (B FIELD 0(1)) goes to.
Any ideas or suggestions from anyone? This has been bugging me for a
long time. I look at it for awhile, and then put it down for awhile. It's also not easy to look at this in the location it is in. It's too low to kneel and really be comfortable. Too high to lay on my stomach. :)
Thanks for any input on this. I should say that part of the system
still works. Examining or depositing memory while it does not appear to load/store the data increments the PC
as it should. I can sort of run, which was my original problem. It
runs but stays at location zero. It is not an interrupt causing this. So the front panel is mostly operational
so at least some of the machine is still working. I just have to find
the problem with the memory.
I know most people on this list do not have a pdp-8i, nor may know
much if anything about them. Any suggestion will be taken and looked
into if it seems to have hope of leading to a solution. Also I will
answer any questions people have to help describe the problem more or
give more details into what Vince and I have looked at.
Tim Radde
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Can anyone tell me useful stuff about the Panasonic RL H1400 computer? I
believe it was also sold under the Quasar brand name.
I've just bought one. As well as the machine (which I've not tested yet),
I got a little thermal printer/cassette interface, the AC adapter (for
110V mains), and 13 EPROMs in carriers. These seem to be insurance
programs (what a suprise -- NOT), but are at least UV-erasable EPROMs.
A few things :
I have of course taken it apart, it is painful to dismantle with wires
soldered between everything. The contemporary HP machines are a lot nicer
to work on.
With the bottom cover removed, you see the component side of the CPU
board. I recognise the 6502 processor, some TTL and 4000-series CMOS
chips, 2 8K ROMS soldered in, and 2 6116 (2K each) SRAMs. There's also a
square PQFP chip, looks to be custom (I/O???). Alongside that board is a
6V NiCd pack with a fuse in series.
A bit more desoldering and unscrewing let me flip that board out of the
way. On the underside is another TTL chip and a lot of SMD passives, etc.
The other PCB carries the keyboard contacts, the display, half-a-dozen
Epson PQFP chips (display drivers?) and a couple of 4071s, which IIRC are
OR gates.
There's an expansion connector on the end of the CPU board. 44 contacts.
Looks to be the 6502 bus + power some others.
The printer also comes apart from the bottom. Its PCB contains a 4K ROM,
an 80 pin PQFP ASIC, a driver chip, and a few small logic chips. Getting
ito the rest of the machine is a bit more tricky, all it contains is the
printer mechanism and 4.8V-worth of NiCds.
I also cracked open the mains adapter.More complicated than I thought,
there's a regulator chip in there. And a fuse mounted in clips (what is
the point of a clipped in fuse inside a glued case??).
Anyway, I've done a web search. Nothing very useful turned up. I did read
a user manual on one site, which told me little that wasn't obvious.
Anyone got any technical information on it? Any useful software?
-tony
A while back I asked if anyone had an interest in my vintage (early
90s) data books. With librarything, I've decided to add them to my
library by scanning the covers and creating entries for the databooks.
Each of these entries is tagged "data book", with title, year and
manufacturer for each one. I'll be adding the remainder of the
12 linear feet of shelf space over time. So if you see something
there that you'd like more information about (chips covered, maybe
scans of the table of contents), let me know.
<http://www.librarything.com/catalog/legalize>
--
"The Direct3D Graphics Pipeline"-- code samples, sample chapter, FAQ:
<http://www.xmission.com/~legalize/book/>
Pilgrimage: Utah's annual demoparty
<http://pilgrimage.scene.org>
Hello All,
I have a nice Compaq Portable II that I just put a 1.44 3.5" drive into and now I see that the tech manual says that I need the upgrade rom N3 to see the drive. Any chance that anyone has this rom image or knows where to find it? Thanks a lot.
Ralph
