test-drb

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101090 discussions

by nw.johnson＠ieee.org

I'm trying to repair an LSI-11/93 that has a bus timeout problem.? Unfortunately the BA23 box it normally sits in lives in a cupboard with printers stowed on top of it and due to my domestic situation (small condo) I can't get it out to scope or get a scope anywhere near it to scope the bus. I'm thinking that the solution would be to get a small QBUS backplane that I can put on my desk in the middle of my test equipment. Like a 4-slot ABAB oir even ABCD would do. Does anybody have one they don't want?? Power supply not needed. cheers, Nigel -- Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591 nw.johnson at ieee.org

4 years, 11 months

Small DEC QBUS backplane

by jnc＠mercury.lcs.mit.edu

> From: Glen Slick > The KDJ11-E 11/93 has PMI signals on the CD connectors, so you need a > Q/CD backplane I have this bit set that plugging a PMI card into a Q/Q slot will damage it? (I think the issue is that some PMI pins are 12V on normal QBUS; too tired to check tonight, I'll get to it tomorrow.) Noel

4 years, 11 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by couryhouse＠aol.com

Thanks? folks for the part number for ink jet cartridges. .. we have differnt interface standards version of Thinkjet? plusevthe one in the integral so we can play still! Big thanks for the corisive? ink warning. .. I had no idea! Hopefully we can turn up some poster art and other things? to add? to the display too!? -Ed# On Sunday, January 31, 2021 Tony Duell <ard.p850ug1 at gmail.com> wrote: On Sun, Jan 31, 2021 at 6:25 AM Frank McConnell via cctalk <cctalk at classiccmp.org> wrote: > > On Jan 30, 2021, at 10:09, ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: > > Hi Doug! No, we do not have a copy of this HP JOURNAL.? We do not have manuals? either.? We,are lucky to have the unit wonder if you can still order ink for the printer. I do have an unopened ink cartrige. You can get scans of the manuals from the Australian HP museum site Do you have any expansion boards in it? Extra memory is very useful (and you can turn any of the boards into a 1MByte one by adding the chips and changing links). As is an RS232 interface (something that IMHO should have been built-in) Do NOT leave the ink cartridge in the machine. The ink is somewhat corrosive and if it leaks onto the flexiprint that connects the cartridge to the logic PCB it will damage it. Due to the layout of the machine the flexiprint is longer than the one in a normal Thinkjet so you can't just raid one of those for spares. Yes there is a way to kludge it with ribbon cable and connectors but it's best not to have the problem in the first place. > > HP 51604A.? I was surprised a few months ago to find that Staples claims to be able to sell new HP cartridges.? Looking earlier today, HP can too! > > Seriously, we?re talking about ink cartridges including replacement print heads for printers manufactured in 1983. I was equally surprised to find that ink ribbons for the Epson HX20 laptop (M160 printer mechanism) along with the ones for the narrower M150 mechanism are still being made. But as I've said before, I'd rather find parts for a machine made 30 years ago than one made 5 years ago. -tony

4 years, 11 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by couryhouse＠aol.com

Hi Doug! No, we do not have a copy of this HP JOURNAL.? We do not have manuals? either.? We,are lucky to have the unit wonder if you can still order ink for the printer. I do have an unopened ink cartrige. I will have to get a copy of this journal meanwhile I will read this one you sent the link to! Back when we were selling? the HP PC? computers? this was a current product but outside our contract? with HP.? I was working with HP 150 abd the display potables HP offered and used 1000 2000 and 3000 systems? but always looked at how neat? this was. Ed# On Saturday, January 30, 2021 Doug Salot <doug at blinkenlights.com> wrote: I assume you already have a copy of the Oct 1985 HP Journal?http://hparchive.com/Journals/HPJ-1985-10.pdf On Sat, Jan 30, 2021 at 9:01 AM ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: Just curious how many Hewlett-Packard Integral? computers were sold.?? We have one here at the SMECC Museum that we are building a display around it for.?? Of course we are looking for any advertising material, posters or anyting visually related to this computer to make the display "more than just a computer on the table"? Please let us know if you have any material that would fit this need!?? Thank you very much in advance Ed Sharpe - Archivist?? for SMECC

4 years, 11 months

cctalk Digest, Vol 76, Issue 29

by mark＠markesystems.com

On 1/29/21 12:58 PM, Fred Cisin via cctalk wrote: >> I like indentation, and demanded it from my students. > > That's fine, but when you have a language that makes indentation part of > the language (i.e. no braces, brackets or keywords denoting boundaries > of the block) , there be monsters. > > And yes, there are such languages. Uh - Python comes to mind... ~~ Mark Moulding

4 years, 11 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by couryhouse＠aol.com

Just curious how many Hewlett-Packard Integral? computers were sold.?? We have one here at the SMECC Museum that we are building a display around it for.?? Of course we are looking for any advertising material, posters or anyting visually related to this computer to make the display "more than just a computer on the table"? Please let us know if you have any material that would fit this need!?? Thank you very much in advance Ed Sharpe - Archivist?? for SMECC

4 years, 11 months

APL\360

by cisin＠xenosoft.com

> Whenever I start a new job the first thing I do today is enable > -Werror; all warnings are errors. And I?ll fix every one. Even > when everyone claims that ?These are not a problem?. Before > that existed, I?d do the same with lint, and FlexeLint when I > could get it. On Fri, 29 Jan 2021, wrcooke at wrcooke.net wrote: > That's exactly what I did and was then told I was likely to get fired for > it. I left that job soon after. > "A person who never made a mistake never tried anything new." -- Albert > Einstein Similarly, "You don't have time to write comments as you go along. You can go back and add them in AFTER the program is working." Of course, as soon as it "seems to be working", "We're not paying you to mess with stuff that's already DONE. We have ANOTHER project that you have to get on immediately." It's not good to be in a job where they won't let you be thorough in error checking nor let you write comments. And, of course, "Don't waste space with more than two decimal digits for year. NOTHING that we are doing now will still be in use 30 years from now." One of the tasks that I was assigned (working for a contractor at GSFC) was to work on converting a wall of punch-card subroutines for plotting on Calcomp plotters that needed to be changed to work on Stromberg-Carlson (later Stromberg Datagraphics). It was budgeted for a LONG project to rewrite all of them. I realized that all of the subroutines for Calcomp called lower and lower level routines, on down to a small number of primitives. It was easy to write primitives for those lowest level ones, that worked on the SC/SD. I got some help with the JCL to link my primitives to the routines for the Calcomps. All of the routines for Calcomp worked fine calling their lower level routines, and ultimately calling MY primitives. The company got a small bonus for getting it all done way sooner than planned, and I got a private major reprimand for getting it all done way sooner than it was budgeted for. Many others earned bonuses for the company. The company distributed the bonuses as BIG bonuses to upper executives (I think that the top guy got a car), and gave each of us a gift certificate/coupon for a turkey.

4 years, 11 months

CPT Phoenix Jr system unit?

by cmhanson＠eschatologist.net

I?ve acquired the display and keyboard portion of a CPT Phoenix Jr but the seller didn?t have the system unit. (I suspect someone along the chain of custody thought it was a generic PC and recycled it.) Does anyone have one that needs a home? ? Chris ? who has an affinity for portrait displays Sent from my iPhone

4 years, 11 months

PDP-10 prints on eBait

by jnc＠mercury.lcs.mit.edu

Did someone here buy these: https://www.ebay.com/itm/265018225826 I was wondering if they'll be scanned. Noel

4 years, 11 months

Ridiculous RL11's on eBait

by jnc＠mercury.lcs.mit.edu

This seller: https://www.ebay.com/itm/303862645513 is _completely_ insane! ~$2400 for an RL11 board? Noel

4 years, 11 months

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