In emptying the warehouse of Zebra Systems, we uncovered the original
Betamax tapes of these two shows.
I posted them on YouTube for your enjoyment.
We also uncovered a load of books, tapes, and some TS-1000/1500/ZX-81
Hardware.
We even found about 5 TS-1500 Computers that we'll be offering on eBay.
But for now, enjoy these:
http://www.youtube.com/watch?v=GtDG5cWmH8shttp://www.youtube.com/watch?v=awUonjY_jcs
Al Hartman
Hi,
My Zilog S8000 Winchester Controller board carries 2 ceramic DIL16
packaged chips labeled (beside a logo) just with the two lines of text.
The chip looks like this (tried to ASCII-art the logo in front of the
text)
+----------------------------------------+
| +-------+ |
| |----- | |
\ | > ----| 6306-1J |
/ |----- | 8147 |
| | > ----| |
| +-------+ |
+----------------------------------------+
I guess the 2nd line means:
81 == 1981
47 == calendar week 47
So I wonder what 6306-1J stands for? I've not analyzed the circuit to see
if it is a PROM or something like that. It is put in a socket so I guess
it must be something (onetime?) programmable...
Maybe you can tell...
--
Oliver Lehmann
http://www.pofo.de/http://wishlist.ans-netz.de/
>
>Subject: Re: What kind of IC is this
> From: ard at p850ug1.demon.co.uk (Tony Duell)
> Date: Wed, 31 Dec 2008 22:50:52 +0000 (GMT)
> To: cctalk at classiccmp.org
>
>> > If you're lucky, eitehr th microcontroller is old enough not to
>> > have any
>> > security features, or they're not used. In which case you remove
>> > the chip
>> > from the PCB and stick it in a suitable programmer.
>>
>> Even the original Intel 8051/8751, circa 1980, has security
>> bits. :-( There are ways to get around (at least) those, though.
>
>Yes, but IIRC the 8048 series (common in classic computer stuff) doesn't...
>
>-tony
My fractional portion of currency is that the 630x is a hitachi varient of the
680x (6800 single chip mpus). I've seen and have some them from older hard
disks and DC300 tape drives that had mechanically expired.
Allison
Ethan Dicks <ethan.dicks at gmail.com> wrote:
> On Wed, Feb 25, 2009 at 1:36 PM, F.J. Kraan <fjkraan at xs4all.nl> wrote:
>
>> Just recently I was able to read my MiniMINC (a PDT-150) floppies with an 8"
>> drive connected to an AHA1542B (capable of single density) with Dave
>> Dunfields ImageDisk.
>>
>
> Good to know. I have at least one 1542B running around, and an old
> DOS box I can use to stuff it all into.
>
> What 8" floppy did you use? I think I have a Tandon one (TM848?) I
> can borrow from a non-DEC Qbus box.
>
The drive is a NEC 1165, very flexible. It allowed me to write to a disk
with only the wrong index hole, so the MiniMINC wouldn't see it. Writing
RT-11 V3b to the right disk it booted . So writing with this setup is
also possible. The 5 1/4" to 8" interface can the one from Dave Dunfield
or the CP/M faq.
I will try it with a Catweasel one day, but the current setup seems more
common, and a MiniMINC doesn't do RX02 anyhow :-).
Would posting an URL with the images of the disks be ok?
Fred Jan
On 19 Jan, 2009, at 05:10, cctalk-request at classiccmp.org wrote:
>> The steel parts are fine, but the rest has a white material over
>> most
>> of it. I'm not sure what sort of metal it is, looks a bit dark for
>> aluminum but the white material looks similar to aluminum oxidation.
>> What's a good approach to cleaning it up?
>
> I seem to recall that the drums on 02x keypunches were brownish
> (probably an anodized coating) and silver-metallic if you scratched
> them or they wore through. I suspect that the drum is a magnesium-
> aluminum die casting.
>
I always through they were rubber covered, but from the picture it
looks like I'm wrong. My 836 (like an 026) came without its drum and I
was told that all leased machines had their drums removed and the
customer got to dispose of the rest. Maybe it was rubbish. A couple of
them have come up on eBay in the last five years and both went for
silly money which to me means there are more keypunches than drums.
Roger Holmes.
Does anyone have a pet source for:
DM74S287
DM74S571
??
Jameco has the first part number at 13.00 each (ouch) and there are some
on eBay at nearly that. The 571 seems to be pure unobtanium, unless you
count 50 hits of *&ssholes who want you to submit an RFQ and won't deal
under $250 a shot.
I need a small number (~5-6) of each.
Steve
--
Hi,
I haven't got ULTRIX/VAX V3.0C, but:
V2.0
V3.1 (disk image only)
V4.2
V4.4
V4.5
I'd like to have the missing versions, too.
More ULTRIX-Manuals would be VERY interesting as well.
(I scanned the ones at bitsavers.com)
What type of VAX do you want to run ULTRIX on?
Regards,
Ulli
Hi,
I was able to acquire 4 Zilog S8000 boards lately.
- S8000 Central Processing Unit
- S8000 Winchester Disk Controller
- S8000 Cartridge Tape Controller
- S8000 ECC Controller
I'm trying to get my hands on the Case and the 1MB memory card, but I was
wondering if someone has still pieces of the S8000 at hand? What about
tape images of ZEUS? I mean - when I'm getting the minimum required
hardware sooner or later - without an installation tape I'm a bit lost -
right? ;)
I've tried to put all the information I was able to found about the S8000
together at http://pofo.de/S8000/ I've scanned the boards I got and put
all the EPROM images online.
COPYRIGHT, ZILOG, INC. 1980
S8000 Monitor 1.2 - Press START to Load System
;)
--
Oliver Lehmann
http://www.pofo.de/http://wishlist.ans-netz.de/
Hi!
It is not complete yet. As a lot of other sites it is a work in
progress, but the work has reached the point where it is reasonable to
show it to the world.
What I'm talking about? The new Norsk Data wiki website of course!
Last autumn I asked for some help finding information about ND-100 and
now it's time to give something back.
Have a look at http://www.ndwiki.org/wiki/Main_Page and tell us what you
think about it. If you want to help us even better, just register and
add information.
:-)
/G?ran
