Re: BIG ol tektronix scope 555 - need it gone - make an offer
display as in an artifact display. any really early system of large stature especally tube logic... had a se or ce living there and scope on cart was always seen... Sent from AOL Mobile Mail On Monday, December 10, 2018 devin davison wrote: The line about being used with an early computer as a display caught my eye. How would it be used as a display, what kind of graphics capability would it have? is there an interface for the thing for the pdp 11 or a modcomp? Those are the old systems i have on hand that i might be able to interface to it. Trying to find a good home for it. I just went through the back room and found another of a similar design, ill post back with that one too. I was not even aware i had two of them, quite odd when you can misplace/ miscount something so large. On Tue, Dec 11, 2018, 12:57 AM ED SHARPE via cctalk wrote: so many of these older scopes,are getting scrapped we have a few.. there was one made by tek. for example to be sold with TV broadcast gear we cherish here...gave a few others too.. but they do take up roomearly scopes are good to display with early computers... in reality it was needed often as early comp. geAR had bad. mtf !.. ed# get one... save one... Sent from AOL Mobile Mail On Monday, December 10, 2018 devin davison via cctalk wrote: More of a computer list I know, but I need to clean out and this needs to go soon. Big ol tektronix scope on a cart. Was part of a community workshop, i cleared out all their equipment and have not had the time to repair it. I was planning to go over it and put it to work at my desk, but i decided to get a bigger desk and don't have the space for it. i picked up a hp logic analyzer that fits on the desk, and is more than capable for working on my pdp 11 and other minicomputer stuff. open to offers, come pick it up and its yours. https://i.postimg.cc/NFPC5cDG/scope-555.jpg located in Melbourne FL --Devin D.
Re: BIG ol tektronix scope 555 - need it gone - make an offer
The line about being used with an early computer as a display caught my eye. How would it be used as a display, what kind of graphics capability would it have? is there an interface for the thing for the pdp 11 or a modcomp? Those are the old systems i have on hand that i might be able to interface to it. Trying to find a good home for it. I just went through the back room and found another of a similar design, ill post back with that one too. I was not even aware i had two of them, quite odd when you can misplace/ miscount something so large. On Tue, Dec 11, 2018, 12:57 AM ED SHARPE via cctalk wrote: > so many of these older scopes,are getting scrapped we have a few.. there > was one made by tek. for example to be sold with TV broadcast gear we > cherish here...gave a few others too.. but they do take up roomearly > scopes are good to display with early computers... in reality it was needed > often as early comp. geAR had bad. mtf !.. > ed# get one... save one... > > Sent from AOL Mobile Mail > > On Monday, December 10, 2018 devin davison via cctalk cctalk@classiccmp.org> wrote: > More of a computer list I know, but I need to clean out and this needs to > go soon. Big ol tektronix scope on a cart. Was part of a community > workshop, i cleared out all their equipment and have not had the time to > repair it. I was planning to go over it and put it to work at my desk, but > i decided to get a bigger desk and don't have the space for it. i picked > up a hp logic analyzer that fits on the desk, and is more than capable for > working on my pdp 11 and other minicomputer stuff. > > open to offers, come pick it up and its yours. > > https://i.postimg.cc/NFPC5cDG/scope-555.jpg > > located in Melbourne FL > > --Devin D. >
RE: BIG ol tektronix scope 555 - need it gone - make an offer
so many of these older scopes,are getting scrapped we have a few.. there was one made by tek. for example to be sold with TV broadcast gear we cherish here...gave a few others too.. but they do take up roomearly scopes are good to display with early computers... in reality it was needed often as early comp. geAR had bad. mtf !.. ed# get one... save one... Sent from AOL Mobile Mail On Monday, December 10, 2018 devin davison via cctalk wrote: More of a computer list I know, but I need to clean out and this needs to go soon. Big ol tektronix scope on a cart. Was part of a community workshop, i cleared out all their equipment and have not had the time to repair it. I was planning to go over it and put it to work at my desk, but i decided to get a bigger desk and don't have the space for it. i picked up a hp logic analyzer that fits on the desk, and is more than capable for working on my pdp 11 and other minicomputer stuff. open to offers, come pick it up and its yours. https://i.postimg.cc/NFPC5cDG/scope-555.jpg located in Melbourne FL --Devin D.
Re: Documation card readers for sale
On Mon, Dec 10, 2018 at 6:23 PM William Donzelli wrote: > > I would love to read Cardamation docs, especially anything relating to > > setting up a modem or a local computer with the serial port > > requirements. Anyone have any? > > You have forgotten that I am the one that cleaned out Cardamation... Forgotten or never knew (I checked my inbox and I don't see any announcements). So... we may have some business to conduct. Thanks for speaking up. -ethan
Re: DG Nova 4 for pickup on Lon Gisland
That's pretty awesome in a desk unit. Always wanted to get a trs or altair desk unit. Hadn't realized there were many more. Unfortunately distance and wife would be prohibitive for my collection. :-( Sent from my Apple /c > On Dec 10, 2018, at 6:10 PM, Chuck Guzis via cctalk > wrote: > > Cribbed from VCF: > > https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-minicomputer-8-floppy-vintage/332940164292?hash=item4d84c7bcc4:g:2skAAOSwqIhcDrmI:rk:39:razz:f:0 > > Chuck
Re: cctalk Digest, Vol 51, Issue 10
Yes. Sunos 5.4, Solaris 2.4. I got and installed Solaris 2.6 to replace that, iirc. I also ran Netbsd and OpenBsd on that machine, preferring OpenBSD, iirc the video drivers worked best on the frambuffer I had which was the base model color board. This all happened in the year 2000 or thereabouts. Jeff
Re: DG Nova 4 for pickup on Lon Gisland
I'm about an hour drive away and somewhat interested, but I don't have space for the desk unfortunately. -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Mon, Dec 10, 2018 at 9:33 PM Tony Aiuto wrote: > It is close enough to me to rescue, but I really don't have the space to > store it. > Will anyone take it if I hold it a while? > > On Mon, Dec 10, 2018 at 9:24 PM Anders Nelson via cctalk < > cctalk@classiccmp.org> wrote: > >> Would this system fit in a standard 19" wide equipment rack? >> >> =] >> -- >> Anders Nelson >> >> +1 (517) 775-6129 >> >> www.erogear.com >> >> >> On Mon, Dec 10, 2018 at 6:10 PM Chuck Guzis via cctalk < >> cctalk@classiccmp.org> wrote: >> >> > Cribbed from VCF: >> > >> > >> > >> https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-minicomputer-8-floppy-vintage/332940164292?hash=item4d84c7bcc4:g:2skAAOSwqIhcDrmI:rk:39:razz:f:0 >> > >> > Chuck >> > >> >
Re: DG Nova 4 for pickup on Lon Gisland
It is close enough to me to rescue, but I really don't have the space to store it. Will anyone take it if I hold it a while? On Mon, Dec 10, 2018 at 9:24 PM Anders Nelson via cctalk < cctalk@classiccmp.org> wrote: > Would this system fit in a standard 19" wide equipment rack? > > =] > -- > Anders Nelson > > +1 (517) 775-6129 > > www.erogear.com > > > On Mon, Dec 10, 2018 at 6:10 PM Chuck Guzis via cctalk < > cctalk@classiccmp.org> wrote: > > > Cribbed from VCF: > > > > > > > https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-minicomputer-8-floppy-vintage/332940164292?hash=item4d84c7bcc4:g:2skAAOSwqIhcDrmI:rk:39:razz:f:0 > > > > Chuck > > >
Re: DG Nova 4 for pickup on Lon Gisland
Would this system fit in a standard 19" wide equipment rack? =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Mon, Dec 10, 2018 at 6:10 PM Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > Cribbed from VCF: > > > https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-minicomputer-8-floppy-vintage/332940164292?hash=item4d84c7bcc4:g:2skAAOSwqIhcDrmI:rk:39:razz:f:0 > > Chuck >
Re: Documation card readers for sale
You have forgotten that I am the one that cleaned out Cardamation...
--
Will
On Mon, Dec 10, 2018 at 1:02 PM Ethan Dicks via cctalk
wrote:
>
> On Mon, Dec 10, 2018 at 10:20 AM Ethan Dicks wrote:
> > The interesting thing about my M-200 is it has a factory mod...
>
> A little clarification of this after more reading. My card reader
> appears to be an M-600, with an internal Cardamation serial interface
> ("Feature 92"). I haven't found much in the way of specific info,
> just mentions here and there that Cardamation rented and sold card
> readers that were fitted with internal serial interfaces for local or
> remote (modem) use.
>
> I would love to read Cardamation docs, especially anything relating to
> setting up a modem or a local computer with the serial port
> requirements. Anyone have any? I can figure this out eventually of
> course, but reading the manuals is a fantastic way to not duplicate
> effort, should such manuals still exist in some form.
>
> -ethan
Seeking info for Cardamation parallel-serial board for card reader
I have finally begun working with the card reader I picked up at a VCF some years back. Mechanically, it's sound, and the rollers are adequate for short term use (on the top, one is firm and in good shape, the other is starting the slide to goo but is working well enough for short-term testing). Mine came with a Cardamation-badged microprocessor board inside that's a serial converter and so far, I'm not getting any bits out of it. I am fairly certain that the product I have was sold as a Cardamation CF-600 based on pictures and speed. I found this on the Wayback Machine: https://web.archive.org/web/20111003183529/http://www.cardamation.com/cardreaders.html The board in question has a 6802 processor, two 6821 PIA chips for the parallel interface, an EPROM, 1K of 2114 SRAM, an 8250 UART, and some misc parts for an RS-232 level shifter. Looking at the DB25F, there are no bits coming out of pin 2 or pin 3. I have yet to sit down and trace signals all the way back, but it may come to that. To assist my probings, while I can reverse-engineer the schematic, locating any docs would speed up this process greatly. On the board, there are markings that indicate it's a "Cardamation Feature 92 Rev 4 Assy No 023.0096-9". The EPROM has a paper label indicating that it's programmed with "V793NE76" whatever that means (likely the variations are largely centered around what EBCDIC-to-ASCII mapping was required). I will be dumping the EPROM to ensure it has sensible contents. Additionally, I'm always suspicious of 2114 SRAMs. They fail while sitting on the shelf. Fortunately everything is socketed, so even if it's an EIA line driver or a PIA or UART or even the CPU, replacement is trivial. There are no unobtanium parts on this outside of the programming of the EPROM. Absolutely worse case, I remove this serial interface and build my own with a modern MCU (I believe Kyle Owen has recently done this). If this was 10 years ago, I'd probably start with Cardamation to ask if they still had any docs on this stuff. I'm reading they closed up shop in 2011 so that's not an option. Digging around for old Cardamation articles in trade rags, I see one of their 300 card-per-minute units spewing the data at 19.2Kbps (I did try that speed, along with 38.4Kbps). I think the minimum speed is going to be 9600 bps, but as I'm not seeing any bits on an oscilliscope, I'm sure it's not the settings on the receive side (yet). -ethan
DG Nova 4 for pickup on Lon Gisland
Cribbed from VCF: https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-minicomputer-8-floppy-vintage/332940164292?hash=item4d84c7bcc4:g:2skAAOSwqIhcDrmI:rk:39:razz:f:0 Chuck
Re: GCC for pdp11
Hello Paul! When I read this once upon during the summer I saw that the problems I once had reported was solved and it was great news. Really thankful that you did so much work with this! However I know tried to turn on optimizations and then it fails in a strange way. If you have some spare time maybe you could check why it fails on when 11/10 but not when set to 11/40. And it only fails for even powers of two above 16. It is the if that fails so if I remove that one it works. The bug report is https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88435 /Mattis Den lör 14 juli 2018 kl 19:51 skrev Paul Koning via cctalk < cctalk@classiccmp.org>: > > > > On Jul 14, 2018, at 9:46 AM, David Bridgham via cctalk < > cctalk@classiccmp.org> wrote: > > > > Hey, glad to hear of some improvement on GCC for the PDP-11. Last > > spring I ended up side-tracked on the QSIC project and working more on > > FPGA issues than writing PDP-11 code but that's going to change here at > > some point. I still want to put a soft PDP-11 into the FPGA as an I/O > > controller and will need to be writing code for it. > > > > For the moment, I'm off at my summer job in Alaska but when I get home > > this fall, it's back to working away on the QSIC and maybe my PDP-10 > > project where I'm thinking I may also use a soft PDP-11 as an I/O > > processor. Anyway, I'll grab up the new GCC and see if my issues with > > the 'volatile' keyword are still there. > > I didn't directly address anything like that, but it may well be that > things are better. "Volatile" is a very tricky area. There is detailed > discussion in the GCC manual about when volatile objects are accessed. You > may want to review that. Sometimes the rules are not precisely what you > might expect. > > paul > >
BIG ol tektronix scope 555 - need it gone - make an offer
More of a computer list I know, but I need to clean out and this needs to go soon. Big ol tektronix scope on a cart. Was part of a community workshop, i cleared out all their equipment and have not had the time to repair it. I was planning to go over it and put it to work at my desk, but i decided to get a bigger desk and don't have the space for it. i picked up a hp logic analyzer that fits on the desk, and is more than capable for working on my pdp 11 and other minicomputer stuff. open to offers, come pick it up and its yours. https://i.postimg.cc/NFPC5cDG/scope-555.jpg located in Melbourne FL --Devin D.
Re: Documation card readers for sale
On Mon, Dec 10, 2018 at 10:20 AM Ethan Dicks wrote:
> The interesting thing about my M-200 is it has a factory mod...
A little clarification of this after more reading. My card reader
appears to be an M-600, with an internal Cardamation serial interface
("Feature 92"). I haven't found much in the way of specific info,
just mentions here and there that Cardamation rented and sold card
readers that were fitted with internal serial interfaces for local or
remote (modem) use.
I would love to read Cardamation docs, especially anything relating to
setting up a modem or a local computer with the serial port
requirements. Anyone have any? I can figure this out eventually of
course, but reading the manuals is a fantastic way to not duplicate
effort, should such manuals still exist in some form.
-ethan
Re: Documation TM200 card reader - pinch roller restoration
On 12/10/18 7:00 AM, Ethan Dicks via cctalk wrote: > I'd rather find a > solution in the $50 range. The CHM 1401 team replaced the rollers on their M1000 and I thought they got them from some source in LA I asked someone on the team about it, and never got a reply.
Re: CDC floppy disks on Ebay.
On 12/10/18 6:52 AM, Guy Dunphy via cctalk wrote: > Al, why not offer $5 or $10 I made a higher offer than that, still no reply. I've had very little luck making offers on auction items. BIN is a different story. I think eBay changed something so that making an offer on auctions became a default or something withing the past few months and it drives me crazy since 'make an offer' in the past was always only associated with BIN. It is pretty pointless, since you can't make an offer once there has been a bid.
Re: Documation card readers for sale
On Wed, Jun 17, 2015 at 7:24 PM Kyle Owen wrote: > If anyone here does get one, I've got a simple Arduino UNO program that > interfaces to the parallel output and sends fully decoded information over > USB at quite high speeds. I'm interested in that! I was designing one in my head this weekend. Much better to stand on the shoulders of giants! > I'm also working on getting a cable made to hook up to the M843 CR8-E > punched card reader interface for the PDP-8/E, but that's a project for > another day (year?). I have an M8291 CR-11 board (untested) but no cable. Same cable as the M843 AFAIK (documented as such). The interesting thing about my M-200 is it has a factory mod - a 6802-based parallel-serial board, mounted on an internal 44-pin 0.156"-spacing connector, so rather than remove that and use an external cable, I have the option of making my own card for the socket with a 40-pin Berg connector and using a straight 40-pin cable to the M8291 or M843. But since mine is punched-cards only (not mark-sense cards), I'm not that likely to punch a lot of card decks for mine. Once I read 3-4 decks for a local buddy, I don't really have "next use" for my reader. -ethan
Re: Documation TM200 card reader - pinch roller restoration
On Wed, Oct 17, 2018 at 8:40 PM Guy Dunphy via cctalk wrote: > Derived from those the correct pinch roller diameter is 27.20 mm. > Notes here: http://everist.org/NobLog/20180922_data_in_holes.htm#rub > > It seems there's a few people who need new M200 rollers. > Once/if I perfect a successful method of making replacements I'll > offer them for postage and a few dollars. But I'm in Australia. Any stories of success? I _just_ fired up my M-200 and on the top, the second roller looks good and firm but not hardened. The first roller is getting gummy and is not to be trusted. It's not shedding onto cards but that will assuredly change. I've been reading about the procedure to remove the block the capstans are mounted to. I see they want a guide shim made from a stack of cards (5? 7?) cut to a certain size (2"x5", I think). In the day, it would have been easy to score blank or discarded used cards and make a stack. Today, I might consider making an alignment shim from index cards and measure the total thickness rather than cut up punched cards. > Or, there's this guy in the USA: http://www.terrysrubberrollers.com/ > Now the correct OD is known he's an alternative, with real rubber. > (Maybe my end result will be rubber too. That remains to be seen.) I looked into that - I'm sure the results are of excellent quality, but he appears to want $35 per roller and $5 shipping per order. There are 4 capstans so that's close to $150 USD. I'd rather find a solution in the $50 range. -ethan
Re: CDC floppy disks on Ebay.
At 04:11 PM 9/12/2018 -0800, you wrote: >On Sun, 9 Dec 2018, Adrian Stoness via cctalk wrote: >> theres a make an offer thing on it why not just use that > >Because a "make an offer" can carry some risks of OFFENDING the seller, if >they had thought that the value was not in the same general range as your >offer. >Not much known history with that seller. I've never encountered that. When I'm ebay buying I routinely make offers that are much less than the list price (if it's fairly high.) Sometimes they accept. Just be polite and nice in your message with the offer, explain why it's a fair offer from your perspective. Al, why not offer $5 or $10, explain you want to try data recovery for bitsavers, but the disks may well be unreadable. It now has 5 watchers. Maybe they are all members of this list, maybe not. I assume you are aware of snipe-bidding services? Some of those watchers may be too, but you won't know till after the end. I've used bidnapper in the past very successfully. >If nobody else bids, then it will be cheap, other than the shipping (the >seller does not seem to know about media mail: "Computer-readable media >containing prerecorded information") He will know if you tell him.
Re: SunOS 2.4 Exploit
On Sun, 9 Dec 2018, Ken Seefried wrote: I believe SunOS 2.4 is old enough all you need to do is delete the password hash from /etc/passwd to log in without a password. Please tell me more: what is SunOS 2.4? I know of SunOS (1.x, 2.0, 3.x, 4.x) and Solaris (1.x and 2.x). Or do you mean Solaris 2.4 (i.e. SunOS 5.4)? Christian
