Hi all,
the german Engeneer Tillman Reh has build an Zilog Z280 SBC card with
Eurocard Bus connector:
http://oldcomputers.dyndns.org/public/pub/rechner/zilog/z280/index.html
The Software is open and Tillman allows the PCB to be reproduced from
his original Gerber files on request.
Unfortunately s
Hi,
I have 4 pcs. IDT49C402 Bit Slices, it is no problem to find a datasheet
for that chip..but it is an problem to find the pinout for the PGA84
Package. In all Datasheets that I've found only DIP68, LCC/PLCC68
PGA68 and CERQUAD68 are listet..
Has anyone a databook newer than 1989 where the PGA8
Glen Slick via cctalk wrote:
> On Thu, Feb 10, 2022 at 3:21 PM Maciej W. Rozycki via cctalk
> wrote:
> >
> > On Thu, 10 Feb 2022, Holm Tiffe via cctalk wrote:
> >
> > > Has anyone a databook newer than 1989 where the PGA84 Pinout is listed?
> >
> >
Gary Oliver via cctalk wrote:
> On 3/11/22 07:01, Paul Birkel via cctech wrote:
>
> .snip.
>
> > UTSOURCE claims to have a supplier of the ceramic part "new", with a
> > significantly higher shipping charge.
> >
> For what it's worth, I've ordered several times from UTSOURCE and the
> results h
pbirkel--- via cctalk wrote:
> In case anyone else has been looking some of these, there is a listing for
> multiple tubes-of-11 on eBay at a moderate price:
>
>
>
> https://www.ebay.com/itm/123710245814
>
> QTY-11 PCS. AMI SEMICONDUCTOR DC319 C04090 Integrated Circuit - (UIC
> 403789
Paul Koning via cctalk wrote:
>
>
> > On Oct 17, 2022, at 2:47 PM, Joshua Rice via cctalk
> > wrote:
> >
> > Hi all,
> >
> > After some discussion on reddit about russian PDP-11 clones, i made the
> > (perhaps erronous) claim that the PDP series in general was cloned by the
> > Soviets.
Holm Tiffe via cctalk wrote:
[..]
For the GDR I don't know of any PDP8 clones, There was the "Kleinrechner
Systeme K4100 and K4200", don't know much about the first one, but the
2nd was compatible to the honeywell DDP516 Series, no clone in any way,
they are totally different
Joshua Rice via cctalk wrote:
> Hi all,
>
> After some discussion on reddit about russian PDP-11 clones, i made the
> (perhaps erronous) claim that the PDP series in general was cloned by the
> Soviets.
>
> I’m aware that there was a lot of QBUS/LSI PDP-11 clones, and depite poor
> document
Toby Thain via cctalk wrote:
> On 2022-10-18 2:57 a.m., Holm Tiffe via cctalk wrote:
> > Paul Koning via cctalk wrote:
> >
> >>
> >>
> >>> On Oct 17, 2022, at 2:47 PM, Joshua Rice via cctalk
> >>> wrote:
> >>>
> >
Joshua Rice via cctalk wrote:
>
> Hi,
>
> I apologise for any misunderstanding. By "clone", i didn't exactly mean
> a 1-to-1 copy, but more a reimplementation. Much like the term "IBM PC
> clone" is still used to describe non-IBM-derived PC designs.
Ok, sounds better, but the russians rolled
.com/c/w2hx-channel/videos
>
>
>
> -Original Message-
> From: Joshua Rice via cctalk
> Sent: Tuesday, October 18, 2022 7:52 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Cc: Joshua Rice
> Subject: [cctalk] Re: Soviet PDP clones
>
>
>
>
Hi all,
I have to repair an PSU of a 11/23 n a BA11 Box with an H9720 Backplane
(with an KDJ-11A) that has run an CNC milling machine until 2 weeks
before now. :-) This is a Fidia machine..never heard about it before.
The problem is that a big 19000µF 40V capacitor in the PSU has failed
and tha
3
> with a RX01 drive.
> In the end of this document there is a schematic:
>
> http://bitsavers.org/pdf/dec/vax/780/MP00534_KC780_Nov77.pdf
>
> Good luck!
>
> /Mattis
>
> Den mån 13 mars 2023 kl 10:57 skrev Holm Tiffe via cctalk <
> cctalk@classiccmp.org>
0 is a PDP-11/03
> with a RX01 drive.
> In the end of this document there is a schematic:
>
> http://bitsavers.org/pdf/dec/vax/780/MP00534_KC780_Nov77.pdf
>
> Good luck!
>
> /Mattis
>
> Den mån 13 mars 2023 kl 10:57 skrev Holm Tiffe via cctalk <
> cctalk@class
Hi,
I've got an Elan 5000 Epromer from a friend in the past.
The Prommer has an ZIFPAC-523 installed which seems to be the same as
the ZIFPAC-932 but with only five Textool Sockets populated on the PCB.
I've cleaned it up a little ans since the ROM moule is missing I've
build my own following th
Peter Coghlan via cctalk wrote:
> >
> > I think that I'm responsible for the dead, as the plotter stood in an attic
> > for 20 years, meanwhile power was raised from 220 to 230v (+-10%) in Europe.
> >
>
> The distribution voltage had previously been specified as 220V in some
> European
> countr
Camiel Vanderhoeven via cctech wrote:
> For a change, rather than a request for help, here¹s a success story: I
> managed to bring a Convex C220 (dual vector CPU mini supercomputer from
> 1988) back to life. Both CPUs are working, but I¹m running with a single
> CPU because of the power it draws w
Jon Elson via cctalk wrote:
> On 10/11/2017 01:51 AM, Steven M Jones via cctalk wrote:
> >
> >
> >
> >
> > On 10/10/2017 12:51, allison via cctalk wrote:
> >> Memory says: it was MICROVAX/RT and the cpu had a reduced instruction
> >> set and was used with ELN/PASCAL. IT was a reduced capability
>
Antonio Carlini via cctalk wrote:
> On 12/10/17 21:10, Holm Tiffe via cctalk wrote:
>
> This thread is becoming a little confusing. The VAXstation II/RC was a
> VAXstation II in a pedestal enclosure
> and differed from a normal VAXstation II in only one way: some of the
> b
Hi,
I friend of mine tried to contact the CALCUSEUM Owner at the Mail
address provided at http://www.calcuseum.com/Wanted.html, but
he got his mail reflected as undeliverable, tried the same, got a 550,
user doesn't exist there.
Does someone know how to contact the guy there?
Regards,
Holm
--
Antonio Carlini wrote:
> On 13/10/17 07:17, Holm Tiffe wrote:
> >
> > I meant that brick:
> > http://www.tiffe.de/Robotron/PDP-VAX/VAX/rtVAX300-internal-3.jpg
> > http://www.tiffe.de/Robotron/PDP-VAX/VAX/rtVAX300-internal-1.jpg
> > http://www.tiffe.de/Robotron/PDP-VAX/VAX/rtVAX300-internal-12jpg
>
Zane Healy wrote:
>
> > On Oct 13, 2017, at 9:51 AM, Antonio Carlini via cctalk
> > wrote:
> >
> > On 13/10/17 07:17, Holm Tiffe wrote:
> >>
> >> I meant that brick:
> >> http://www.tiffe.de/Robotron/PDP-VAX/VAX/rtVAX300-internal-3.jpg
> >> http://www.tiffe.de/Robotron/PDP-VAX/VAX/rtVAX300-in
Hmm..I've read about that baking in conjunction with 1702A too..but
don't remember the source of that discussion. I know that ppl suggested
it for proms that would'nt program correctly...
Regards,
Holm
dwight via cctalk wrote:
> When I was at Intel, years ago, I recall the baking was only to re
Chuck Guzis via cctalk wrote:
> On 12/23/2017 01:02 PM, Stefan Skoglund via cctalk wrote:
>
> > stearinljus (candles)
> > some glögg (mulled wine)
> > julskinka (ham)
> >
> > or as in our case:
> > lutfisk (dried ling later on soaked in lut and boiled) och potatis
> > (potatoes) och vitsås (a wh
...only for a look..
https://www.daliborfarny.com/project/h-nixie-tube/
I'm not related with that czech factory, this is no advertising.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
i..
Hi guys,
I have 8 "new" Chips from Signetics, they are labeled:
S7536
N8220B
and on the backside between the pins "8220".
Does anyone know what they do? My search with google and
in the 1976 Signetics Date Manual (from Bitsavers) wasn't helpful...
Thanx in advance,
Holm
--
Technik Ser
-stuttgart.de/components/signetics/_dataBooks/1972_Signetics_Full_Line.pdf,
> page 4-3
>
> --
> Holger
>
> ____________
> Von: Holm Tiffe via cctalk
> Gesendet: Montag, 28. August 2023 15:24
> An: cctalk@classiccmp.org
> Cc: Holm Tiffe
> Betre
Wouter de Waal via cctalk wrote:
> Hi all
>
> I re-discovered some eurocards I found in a box at a swapmeet long ago.
>
> It looks like a complete 8085 system. Lots of RAM, 2K EPROM, I/O, FDC.
>
> The strange thing is that the EPROM is mapped at F800, the code in there
> looks like 8085 code, a
Hi,
in my stash of IC's Ive found a small box containing some Harris TTL
Proms 75xx and 76xx.
Interestingly the print is up right when the pin 1 is on the left side.
I think they are pulled somewhere, otherwise they look linke new..even
the pins aren't strongly rectangular..they are spread a littl
John Robertson via cctalk wrote:
> Hi Holm,
>
> I use some of those PROMs, but shipping from Germany may make it not so
> good.
>
> And, of course, if they are already programmed then they are worthless -
> at least to me! I tkae it there are no extra numbers stamped over the
> Harris part nu
https://www.tiffe.de/images/TTL-1.jpg
https://www.tiffe.de/images/TTL-2.jpg
https://www.tiffe.de/images/TTL-3.jpg
Forgot those links..
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
i...@tsht.d
..after a closer look, the proms are don't even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
i...@tsht.de Tel +49 37292 709778 Mobil: 0172 8790
John Robertson via cctalk wrote:
> On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk wrote:
> > ..after a closer look, the proms are don't even Harris..that's something
> > lieke a "-B" on them..
> >
> > Regards,
> > Holm
>
> Those look p
Paul Koning via cctalk wrote:
>
>
> > On Aug 13, 2024, at 9:02 AM, Holm Tiffe via cctalk
> > wrote:
> >
> > ..after a closer look, the proms are don't even Harris..that's something
> > lieke a "-B" on them..
> >
> > Regar
Paul Koning via cctalk wrote:
>
>
> > On Aug 13, 2024, at 2:50 PM, Holm Tiffe via cctalk
> > wrote:
> >
> > John Robertson via cctalk wrote:
> >
> >> On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk wrote:
> >>> ..after a close
Christian Corti via cctalk wrote:
> On Tue, 13 Aug 2024, Holm Tiffe wrote:
> > Paul Koning via cctalk wrote:
> >> It looks that way to me, too. It is the Burroughs logo; you can see
> >> the exact same image on 1970s era manuals (see Bitsavers for example).
> > I just wanted to ask if someone ca
David Griffith via cctalk wrote:
>
> On Mon, 3 Dec 2018, Joe Smith via cctech wrote:
> > Are there any boards available or rom monitor updates?
>
> No more boards are available. This is primarily due to difficulty in
> getting sufficient quantities of brand-new super-IO chips. The fabber I
>
Hi all,
I've got an Advantech Labtool48 parallel Port Programmer lately
for fifty bucks. I've got it w/o any Software, cable or documentation
and now I have a few questions.
1. Is the parallel Cable a straight one to one Cable? The Labtool48
has an male connector on the back so a standard cable w
Bill Gunshannon via cctalk wrote:
> On 4/2/19 11:21 PM, Glen Slick via cctalk wrote:
> > On Tue, Apr 2, 2019 at 5:09 PM Bill Gunshannon via cctalk
> > wrote:
> >>
> >>> Try deleting everything on the device entry lines after "cnxint"
> >>>
> >>> (For reference, "cnrint" and "cnxint" are the names
W2HX via cctalk wrote:
> ?Hi friends. I am putting together a PDP-11 set up. i have a few CPUs
> available to me, a 11/23+, an 11/73 and I also have available to me an 11/83,
> M8190-AE .
>
>
> I would like to try to run as many different OS's as may interest me,
> including some unixes as po
Rod Smallwood via cctalk wrote:
> Hi
>
> Whilst I wait to hear from Glen Slick who has got me this far
> (Thanks Glen) I'll restate the problem.
>
> 1. I now have an old XP system with SIMH on it (PDP11.exe)
>
> 2. I have created RD54.dsk containing RSTS/E
>
> 3. Attached to the system
Noel Chiappa via cctalk wrote:
> > From: Rod Smallwood
>
> > 4. I need a tried and tested list of step by step instructions to
> > put RD54.dsk on the SCSI drive.
>
> Well, this isn't a list of directions, but... I've had good luck doing
> almost this exact same thing (on a Windows X
Noel Chiappa via cctalk wrote:
> > From: Holm Tiffe
>
> > You have to have an already existing parition structure on the disk and
> > an OS that knows what todo with that.
>
> The "--list" command to 'dd' gives a whole bunch of stuff:
aha:
$ dd --list
dd: unknown operand --list
$
Rod Smallwood via cctalk wrote:
> Hi
>
> Due to the help from Glen Slick. (The only guy to answer the
> question as asked.)
>
> What to do is interesting. How to do it will get you there.
>
> I now have a SCSI drive on the 11/93 that thinks its an RD54 and is
> trying to boot RSTS
Mouse via cctalk wrote:
> >> And BTW, what you are doing is not clever at all:
> >> mo...@rodents-montreal.org
> >> SMTP error from remote mail server after initial connection:
> >> host MX-4.rodents-montreal.org [98.124.61.89]:
> >> 550-.de's whois server, whois.denic.de, is complet
Mouse via cctalk wrote:
[..]
> law). I simply consider it antisocial and uncivilized, and am not
> interested in accepting mail from any domain within its bailiwick.
...what you call social and civilized it seems...
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tif
Ethan Dicks via cctalk wrote:
> On Mon, Sep 23, 2019 at 4:36 PM steven stengel via cctalk
> wrote:
> > Found a Datapoint 2200 in Austria that I wanted - I asked seller Viktor to
> > pack it well, by wrapping it several times in big-bubble bubbewrap, until
> > it was just a giant cube of bubble
Hi all,
Some time ago I've got from a friend a defective ECB Bus Card named
GRIP-4, that's a ancient Z80 based graphic display controller Card
using the MC6845/HD6345 CRT Controller made by the (still existing)
german Company Conitec in the 80s.
Additional I've got an empty extension PCB called Gr
Rob Jarratt via cctalk wrote:
> The PSU in my VAXmate failed recently and I think I have found a problem
> with one of the windings on the transformer not ringing when I test it with
> a ringing tester. The technical description of the VAXmate says that one
> winding is operated in flyback mode an
Jim Manley via cctalk wrote:
> Not everyone on this list was even alive when much of this happened, and
> others of us were busy dealing with other very important things going on in
> The Real World then, so this is a very interesting story for many.
>
> Anyone willing to do business with the ter
Adrian Stoness via cctalk wrote:
> trying to identify these soviet resistors anyone familiar with how they
> marked them i see 620 on these ones for the panel bulbs
> https://www.flickr.com/photos/1ajs/49633358106/in/dateposted-public/
>
> want to test all the lamps with power but i dont know whe
4.3 BSD Quasijarus by M.Sokolov should be the last OS for VAXen,
I had it run on a MVII with UC08, a Tandberg SLR5 and some SCSI disk.
Should be still on the disk, have a copy on my webserver
(www.tiffe.de/Robotron) and there is a github repository somewhere
available.
Regards,
Holm
Guy Sotoma
Paul Koning via cctalk wrote:
>
>
> > On Mar 10, 2020, at 3:38 PM, Ethan O'Toole via cctalk
> > wrote:
> >
> >
> > Since HP is killing the Hobbyist program, you all should make a Hobbyist
> > license key generator.
> >
> > That solves the issue forever.
>
> The difficulty is that people a
Rod Smallwood via cctalk wrote:
> Hi All
>
> With the upcoming demise of VMS/VAX I thought I might give NetBSD/vax a try.
>
> Downloading a bootable image and burning it onto a CD was not a problem.
>
> On the 3100 with attached RRD42 and SCSI drive RZ26l the CD duly booted
> ito the NetBSD in
Rob Jarratt via cctech wrote:
>
>
> > -Original Message-
> > From: cctech On Behalf Of Robert
> > Armstrong via cctech
> > Sent: 29 March 2020 02:29
> > To: cct...@classiccmp.org
> > Subject: H7874 power supply
> >
> > Does anybody have a maintenance print or service manual for the D
Rob Jarratt via cctalk wrote:
> Thanks Eric, I had a private reply that said pretty much the same thing.
>
>
>
> Last night I replaced the shorted diode and another electrolytic capacitor
> and the PSU started up on the bench, powering a load board and an RD53 hard
> disk. Ripple was good ex
Rob Jarratt via cctalk wrote:
> I have been looking at the flyback transformer from my VAXmate. I think it
> could have failed but I can't be completely sure. I have posted a
> description here:
> https://robs-old-computers.com/2020/05/12/vaxmate-flyback-transformer/
>
>
>
> Can anyone offer a
Rob Jarratt via cctalk wrote:
> I am about as certain as I can be that the flyback transformer from my
> VAXmate monitor board has failed. I know this is probably impossible, but I
> am wondering if there is a way to find a more modern equivalent? How
> standardised are these things? I do see a lo
Rob Jarratt via cctech wrote:
>
>
> > -Original Message-
> > From: cctech On Behalf Of Gregory Beat via
> > cctech
> > Sent: 19 May 2020 00:00
> > To: r...@jarratt.me.uk
> > Cc: General Discussion: On-Topic Posts
> > Subject: Re: [cctalk] Replacing the Flyback Transformer From My VAXma
Hi guys,
I have three Dolch Logic Analyzers, the two bigger ones are Palas
Analyzers, one of them with an highspeed option, the third is
an Compact 100 Analyzer. For the bigger ones I have Disassemblers for
8080/8085 and Z80 as far as I know. I want to use the C100 with a Z80
disassembler, but
shad via cctalk wrote:
> Hello,
> I have a question about 9 track tapes and block sizes.
> What I know is that tape is subdivided in files by means of marks, and each
> file is subdivided in blocks of equal size.
> Programs like tar use a specific block size to create files on tape.
> However
Randy Dawson via cctalk wrote:
> Since I know there's tons of PDP/11 geniuses here, and other gurus with a
> NOVA 4, and a Tektronix 4052 guy (I have the 4051):
>
>
> What have you done, with microprogramming this part? In your architecture,
> have you changed the microcode, create an instru
Christian Corti via cctalk wrote:
> On Fri, 19 Jan 2018, TeoZ wrote:
> > Didn?t early SUN gear have SCSI floppy drives?
>
> No, SUN always used standard floppy controllers. But HP and DEC used them,
> although it was not very common. The floppy drives are standard TEAC
> FD-235HF with an additi
Diane Bruce via cctalk wrote:
> I just stumbled over this page this morning. Wow.
> Fascinating story!
>
> http://ferut.ca/my-story/
>
>
> --
> - d...@freebsd.org d...@db.net http://www.db.net/~db
Read all about the Ferut computer and the radar techncan time, really great
written stories!
Benjamin Huntsman via cctalk wrote:
> Place your wagers...
>
>
> How many more years do you think it'll take before decent, practical-sized
> Alphas, like the DS15, and to some degree, the DS10, will be obtainable at
> hobbyist-friendly prices?
>
>
> I have an ES47 I got for a price I could
allison via cctalk wrote:
> On 04/15/2018 10:25 AM, David Griffith via cctalk wrote:
> >
> > I'm pondering upgrading the CPU of a Pacccomm Tiny-2 Mk2 radio packet
> > controller from a 6Mhz Z80 processor and SIO to 10Mhz parts. My
> > problem is that the parts already in it appear to be NMOS. Th
Christian Corti via cctalk wrote:
> On Sat, 19 May 2018, Ed Sharpe wrote:
> > Happy Armed Forces Day 2018 Saturday, May 19 ... Do not forget our brave
> > men and women! Ed# WWW,SMECC,org KF7RWW
>
> a) This is an international list
> b) This topic has absolutely nothing to do with classic com
Aaron Jackson via cctalk wrote:
> > On Thu, 7 Jun 2018, Aaron Jackson wrote:
> >> The VAX turns on and the status LED stays on F. The DC lamp does not
> >> illuminate on the PSU. 5V rail appears fine but there is nothing from
> >> the 12V rail. There were some *very* dodgy looking caps which I hav
Noel Chiappa via cctalk wrote:
> So someone mentioned this to me:
>
> https://www.ebay.com/itm/222941705847
>
> Now, the crazy thing is that I religously do a search for "PDP-11" for newly
> listed items on eBait at least once a day - and this never showed up! I just
> did a search for sold "P
Cameron Kaiser via cctalk wrote:
> I'm worried that VMS Mosaic 4.2 is lost since WVNET's VAX systems are no
> longer operational, and it was stored on their FTP server (not somewhere
> that the Wayback Machine got to). I only have an old version of 3.6 and a
> diff of 4.2. Does anyone have the ori
Hi,
I have an working VAX4000/300 and I'm looking for additional memory for
this machine. Has anyone left over MS-670 Memoryboards that he wants to
get rid of for an symbolic price? (or compatibles, clearpoint etc...)
I'm ocated in germany..
Regards,
Holm
--
Technik Service u. Handel Tif
Hi all,
I've got an VME Bus sized CPU or GPU Board out of ebay a while before,
it is equipped with 4 pcs of AM29203 Slices and an AM2910A Sequencer.
It sems to be a german Product.
The Sticker on one of the DIN 96 Connectors states:
GE2149G206 WNr. 10488 Grund- Baugruppe
Does anyone know what i
Jay West via cctalk wrote:
> Someone has contacted me about a pdp-11 that controls a "measuring machine
> dea epsilon".
>
>
>
> It appears that they want to replace the pdp-11 with a "ibm" (I'm guessing a
> pc), and then they would give the pdp-11 as a gift.
>
>
>
> That is all the info I
Hi,
two weeks before I was asked from a friend if it's worth to
rescue an HP1000 A600 computer from the stuff available at a local
scrapp seller in Erfurt.
Of course I've answered yes!
Unfortunately someone at the scrap site has pulled some cards and at
least in one case a chip fom a card. There
Josh Dersch via cctalk wrote:
> On Tue, Oct 16, 2018 at 11:19 AM Josh Dersch wrote:
>
> > Thanks, all, for the responses! The way it measures out makes it look
> > like it may be an MJ10006 or similar. I think it's probably ok.
> >
> > I poked around a bit more this morning and it's looking li
Torfinn Ingolfsen via cctalk wrote:
> On Tue, Oct 23, 2018 at 10:16 PM Richard Loken via cctalk
> wrote:
> >
> > I am replying to this email on a FreeBSD 10.3 box and Motif. I don't
> > know what FreeBSD runs out of the box because I immediately delete it
> > and install Motif.
>
> FreeBSD does
Chuck Guzis via cctalk wrote:
> On 10/23/18 3:29 PM, Torfinn Ingolfsen via cctalk wrote:
>
> >> FreeBSD may not have the installed base of Linux but it has a its fans.
> >
> > Yes, this workstation runs FreeBSD 10.4 and Xfce.
>
> I prefer OpenBSD myself for mission-critical stuff--the nearly pa
Adrian Graham via cctalk wrote:
> >It looks nice externally, and it has the pedestal, which is nice, but the
> >seller has not even give the spec or posted pics of the innards and it is
> >"untested". At that price I would expect a bit more information..
>
> Instant alarm bells to me are a selle
David Gesswein via cctalk wrote:
> Until they are up on bitsavers you can get them from here.
>
> http://www.pdp8online.com/misc/TMS320_TMS340.zip
>
> On Sun, Mar 08, 2020 at 01:04:41PM -0400, emanuel stiebler wrote:
> > On 2020-03-07 14:38, David Gesswein via cctalk wrote:
> >
> > > I found ar
David Brownlee via cctalk wrote:
> I had some extra A4 pages with a VAXstation 2000 manual which covered
> a preview PK2K kit for VMS, bootloader and ROM to allow use of the
> VAXstation 2000 SCSI controller for more than just tapes.
>
> Rough scan at http://sync.absd.org/vax/VAX-PK2K-preview-kit
hi all,
a friend of mine (Hartmut) is restoring desktop- and pocketcaluculators
as a hobby. Lately he got an HP9100B on his desk with a bad display tube (the
getters are white) but is otherwise in a good shape.
Is here possibly someone that has such an display Tube to sell?
Kind Regards from Germ
Joshua Rice via cctalk wrote:
> Though i’m no expert, it looks like those are more an artefact of production,
> rather than usable test points. It seems like those pins extend throughout
> the ceramic substrate, and were most likely produced by pushing the pins
> through holes in the substrate
Jonathan Stone via cctalk wrote:
> I recently rescued two Microvax-2000s but both have dead RD53s. Does anyone
> have a ROMable image of the Microvax 2000/Vaxstation 2000 boot-PROM patches
> from Wolfgang Moeller at http://ftp.gwdg.de/pub/vms/pk2k/ ? I'm looking to
> install NetBSD, not VMS
rman.. and sending Eproms from here seems to be the worst case
to me...
Regards,
Holm
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Jonathan Stone wrote:
>
>
> On Tuesday, September 21, 2021, 05:39:23 AM PDT, Holm Tiffe via cctalk
> wrote:
>
> >I've tried this almost 2 years before..and it wor
I have an old german PLC on the desk that I need to repair,
it is an Eberle PLS511, build out of a 1Bit CPU build out of 4xxx CMOS
Logic.
I do have two slightly different units, one is equipped with 3 pcs
66S018 Eproms from Intersilm DC is 8319.
I'm unable to find a datasheet for that device but
Mark Moulding via cctalk wrote:
> From: Tom Hunter
> Subject: Programming Bipolar PROMs
>
> > The part is an Intersil IM5600CP, but these were also made by others, for
> > example Signetics and Philips made the 82S23 and TI and NTE made the
> > faster
> > SN74S188N. Some vendors still sell thes
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