would sperry univac fit those markings?
On Tue, Jan 2, 2018 at 6:09 PM, william degnan via cctalk <
cctalk@classiccmp.org> wrote:
> >
> >
> > >
> > >> Bill said
> > >>> Just curious...can anyone id the system that used these two types of
> > core
> > >>> memory? I am thinking the first is a hand
Hello Folks, a most glorious and blessed new year to you all.
I have created a new DEC sales thread on the VCFed forums and populated it
with a batch of newly listed DEC cards:
http://www.vcfed.org/forum/showthread.php?61371-Sellam-s-DEC-Hardware-Software-and-Peripherals-Sales-Thread
I've also r
I'm in need of some feet for my H960s and am intending to make a few pairs, so
I thought I might
as well try and make them look close to the originals.
I have a few ideas on construction, for instance 3mm steel plate laser-cut and
folded jigsaw fashion
then welded, or even simpler a basic welded
>
>
> >
> >> Bill said
> >>> Just curious...can anyone id the system that used these two types of
> core
> >>> memory? I am thinking the first is a hand-made custom core, but the
> 2nd
> >> is
> >>> definitely from a commercial system. Looks kind of IBM-ish but it's
> >>> nothing I can ID. It's
On 1/2/18 15:38, Toby Thain via cctalk wrote:
> Err.. could be my mistake... I meant wherever you posted your last
> technical note about QBus quirks. (I didn't look up the reference)
Oh, that paper I wrote about how bus arbitration works on the Unibus and
QBUS. I'd thought of it as just a way o
Well... Finally figured it out! Found a lose solder blob shorting 2
pins on one of the motherboard ICs. That explains why I've been going
crazy trying to figure out why it's been so random and intermittent.
Thanks everyone for chiming in, and helping out!
On 1/1/2018 6:12 PM, Nick Allen wr
On Tue, 19 Dec 2017, Charles Dickman via cctalk wrote:
> > Hardware support say no support for LCG Graphics :-(
>
> There are a few people willing to work on graphics for old
> vaxstations, but there is no documentation.
>
> If anyone has documentation, the netbsd vax port mailing list would be
On 2018-01-02 3:00 PM, David Bridgham via cctalk wrote:
> On 01/02/2018 02:05 PM, Toby Thain via cctalk wrote:
>
>>> Oh, I hadn't thought of Toby possibly meaning that. Yeah, I'm unlikely
>>> to write up much documentation on the internals of the QSIC for people
>>> who want to add other devices.
On 01/02/2018 02:05 PM, Toby Thain via cctalk wrote:
>> Oh, I hadn't thought of Toby possibly meaning that. Yeah, I'm unlikely
>> to write up much documentation on the internals of the QSIC for people
>> who want to add other devices. However, not only will the source be
> Yes, that's what I mea
On Tue, Jan 2, 2018 at 12:13 PM, Brad H via cctalk
wrote:
> Thanks Paul. I found an srec2bin converter and ran that.. it created a 1K
> bin file. I then opened that with a hex editor (slick edit).. but alas, no
> readable strings.
>
Not too surprising, since AFAIK the basic Dynamicro doesn't h
On 01/02/2018 02:07 PM, Toby Thain via cctalk wrote:
> On 2018-01-02 1:57 PM, David Bridgham via cctalk wrote:
>> The link didn't work for me but I definitely have that paper -- good
>> stuff indeed. I should collect my library in one place so I don't lose
>> track of what I have.
>>
> Sorry, this
Thanks Paul. I found an srec2bin converter and ran that.. it created a 1K bin
file. I then opened that with a hex editor (slick edit).. but alas, no
readable strings.
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul Berger
via cctalk
Sent: Tue
On 2018-01-02 1:57 PM, David Bridgham via cctalk wrote:
> The link didn't work for me but I definitely have that paper -- good
> stuff indeed. I should collect my library in one place so I don't lose
> track of what I have.
>
Sorry, this is a better link:
https://dl.acm.org/citation.cfm?id=1283
On 2018-01-02 1:17 PM, David Bridgham via cctalk wrote:
> On 01/02/2018 01:13 PM, Noel Chiappa via cctalk wrote:
>
>
>> If you mean the 'software' for additional controllers - that would be a _lot_
>> harder (plus to which it's an entirely different tool-chain, yadda-yadda).
>> 'Use the source, L
I would convert it to a binary image if you could and then look at it
with a binary editor. Most binary editors I have seen show the data in
hex and also have an eye catcher on the right with the ASCII equivalent
to the code points. Trying to find strings in S-records would be a bit
painful.
The link didn't work for me but I definitely have that paper -- good
stuff indeed. I should collect my library in one place so I don't lose
track of what I have.
On 01/02/2018 01:54 PM, Toby Thain via cctalk wrote:
> In this vein, Ivan Sutherland's Turing Award lecture, "Micropipelines",
> might
Just posting this here in case it reaches eyes not in other forums I'm on.
I decided to embark on a project that involves burning a 2708 EPROM. I've
never messed with EPROMs before, so I decided to practice. What I have is a
Microworks 2708 'burner' that came with a SWTPC 6800 machine I have.
On 2018-01-02 1:22 PM, David Bridgham via cctalk wrote:
> On 01/01/2018 08:06 PM, Paul Koning wrote:
>
>> Neat. I found this 2011 paper that's interesting:
>> http://www.cs.columbia.edu/~nowick/nowick-singh-ieee-dt-11-published.pdf
>
> Thanks for this paper, Paul. I'm quite interested in the i
On 01/01/2018 08:06 PM, Paul Koning wrote:
> Neat. I found this 2011 paper that's interesting:
> http://www.cs.columbia.edu/~nowick/nowick-singh-ieee-dt-11-published.pdf
Thanks for this paper, Paul. I'm quite interested in the idea of
asynchronous circuit design and I hadn't come across those
> -Original Message-
> From: Thorhallur Ragnarsson [mailto:th...@ismennt.is]
> Sent: 02 January 2018 16:59
> To: r...@jarratt.me.uk; Rob Jarratt ; General
> Discussion: On-Topic and Off-Topic Posts
> Subject: Re: ZX Spectrum Z80 Keeps Resetting
>
> Hello Rob.
>
> The power supply volta
On 01/02/2018 01:13 PM, Noel Chiappa via cctalk wrote:
> If you mean the 'software' for additional controllers - that would be a _lot_
> harder (plus to which it's an entirely different tool-chain, yadda-yadda).
> 'Use the source, Luke!', I'm probably afraid...
Oh, I hadn't thought of Toby possi
> From: Toby Thain
> If the documentation is good enough, people in the community will be
> able to provide the software.
You mean, host drivers?
Yeah, that documentation will be pretty trivial: 'there's this extra
register, just like the one in the RLV12; the top 6 bits of the DMA m
On 01/02/2018 12:45 PM, Toby Thain via cctalk wrote:
> If the documentation is good enough, people in the community will be
> able to provide the software.
The quick answer is that it's pretty simple. We take the
cylinder/head/sector addresses and consider them a Linear Block
Address. Then we l
On 2018-01-02 9:01 AM, Noel Chiappa via cctalk wrote:
> > From: Mark J. Blair
>
> > I wonder if it might also be useful in any of the QBUS MicroVAXen?
>
> Hardwarewise, it should be fine. Softwarewise... well...
> ...
> Anyway, you can see where this is going. For people who can tweak the
Hello Rob.
The power supply voltage might be a bit too high.
Early Spectrums expected a "9V" DC power supply.
The DC/DC converter that makes +12V, +12VA, -5V and -12V(AC) in some early
versions (up to Issue 3, IIRC) stops working if the input voltage is too high.
Happened frequently around m
I am not sure how RSX boots. Does the message give any indication where in the
boot process things go wrong?
I imagine that the boot process loads one part at a time with each part being
something I would think of as a driver. So I was wondering if there would be a
way to look at the boot b
On 01/01/2018 10:30 PM, jim stephens via cctalk wrote:
On 1/1/2018 10:35 AM, Noel Chiappa via cctalk wrote:
> From: John Welch
> SAV -- SOFTWARE CONFIGURED FOR ENABLE HARDWARE
WHICH DOES NOT RESPOND.
> HALTED.
> Does anyone have any hints on how I can guess what
I need
Best wishes for 2018!
I have been busy trying to repair my dead 11/35.
The system was working, but there was one screw loose that mounts the
system units in the BA11 box ... that screw created a short circuit :-(
After powering the 11/35, ENA/HALT on HALT, and toggling the LOAD ADRS
switch, all DAT
Anyone have one of these single board embedded computers in use? I have
one that is unresponsive and I believe I need to replace the Dallas battery
chip, similar to other computers like the SunSparc 10 that does nothing
without a working NVRAM battery chip installed.
Any opinions/experience with
I can boot RSX from a different device (or RT-11, or unix maybe) and
then mount this RL02 pack and go exploring through its contents. Is
there a possibility that I may find what is missing that way?
On 1/1/2018 12:35 PM, Noel Chiappa wrote:
> From: John Welch1
> SAV -- SOFTWARE CON
> From: John Welch
>>> SAV -- SOFTWARE CONFIGURED FOR ENABLE HARDWARE WHICH DOES NOT RESPOND.
> I can boot RSX from a different device (or RT-11, or unix maybe) and
> then mount this RL02 pack and go exploring through its contents. Is
> there a possibility that I may find what
> From: Jim Stephens
> I had a meeting with Ken Omohundro on 12/7 and will be having dinner
> with him again soon. I'll ask him about it. I know he doesn't have any
> records left, but I could take him your notes and see what he recalls.
Thanks very much for that offer; we do thin
On 01/02/2018 06:06 AM, Liam Proven via cctalk wrote:
> Not a request -- I'm in continental Europe and have 2 PCWs anyway, a
> 9512 & a 9512+. But I'm curious -- which model? The basic 8256?
Yup, that's the one, as sold by Sears in the US.
--Chuck
On 1 January 2018 at 20:55, Chuck Guzis via cctalk
wrote:
> There probably aren't that many 120V versions of the Amstrad Joyce Word
> processor, but I've got one here. I replaced the 3" CF floppy drive
> with a 720K 3.5" drive and modified some boot disks.
>
> The system now supports 3.5" double
> From: Mark J. Blair
> I wonder if it might also be useful in any of the QBUS MicroVAXen?
Hardwarewise, it should be fine. Softwarewise... well...
The issue is that we're currently only planning to emulate the RK11 and RP11,
because we're not up for the hassle involved in emulating mor
2018-01-02 11:07 GMT+01:00 jos via cctalk :
>
> Did anyone ever succeed in repairing a stepper motor
>
> Currently restoring a datapoint floppy drive that has been stored in a
> disastrous environment.
>
> The head stepper has a loose wire, currently I cannot even see how to open
> the stepper mot
Awesome!! :D
Enviado do meu Tele-Movel
On Jan 2, 2018 7:32 AM, "Kevin Parker via cctalk"
wrote:
>
>
> Hi folks - the family surprised me for Christmas by all contributing to
> some custom plates for my new car.
>
>
>
> This might tell you how well they know me.
>
>
>
> http://koken.advancedimag
On 1/2/2018 2:07 AM, jos via cctalk wrote:
Cannot see any marking as to who the druive supplier is, it might have
been Datapoint themselves.
FWIW, the datapoint systems I've had (no longer) had CDC guts. At least
I bought a number of MMD 160 SMD drives and other scrap from a datapoint
rep
Did anyone ever succeed in repairing a stepper motor
Currently restoring a datapoint floppy drive that has been stored in a
disastrous environment.
The head stepper has a loose wire, currently I cannot even see how to open the
stepper motor.
It is a Warner Electric SM-024-0045-AS
Cannot see
Hi folks - the family surprised me for Christmas by all contributing to some
custom plates for my new car.
This might tell you how well they know me.
http://koken.advancedimaging.com.au/index.php?/albums/274143f7eae640a16c276e89b953503d/
Kevin Parker
P: 0418 815 527
Seeing Noel's blinkenlights project and list of panels, for interest's sake
here is a picture and
decription of the Foxboro drum indicator panel from one of the hardware manuals.
http://web.aanet.com.au/~malikoff/foxboro/FOXBORO_Drum_indicator_panel_1.jpg
http://web.aanet.com.au/~malikoff/
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