- test-drb@ccmp.vtda.org - classiccmp.org

by vintagecomputer＠bettercomputing.net

I have been keeping a registry of key machines.. Apple IIs and Altairs and such.. whenever a serial number is available I try to record it. ?Ive only seen one or two come up twice.. and I think one was the vintagecomputermuseum guy. ?I'll keep keeping tabs and see just for fun if stuff is in fac recycling. :) Sent from my Samsung device -------- Original message -------- From: william degnan <billdegnan at gmail.com> Date: 2016-10-02 1:37 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: ka... ching! On Sun, Oct 2, 2016 at 4:29 PM, TeoZ <teoz at neo.rr.com> wrote: > There are also the type of people who get into a hobby and buy all kinds > of gear then get bored and ditch it a few years later. > > -----Original Message----- From: Jon Elson > Sent: Sunday, October 02, 2016 3:32 PM > To: General at classiccmp.org ; Discussion at classiccmp.org:On-Topic and > Off-Topic Posts > Subject: Re: ka... ching! > > > On 10/02/2016 12:50 PM, Al Kossow wrote: > >> >> On 10/2/16 10:15 AM, Jay West wrote: >> >>> I have a new theory. No new machines are ever >>> found, we all just keep trading ownership of them amongst ourselves, >>> sometimes with the same machine coming back years later! >>> >>> Thats been a joke at hamfests for decades :-) >> >> >> >> It is NOT a joke, it really happens.? The old gear outlasts > the owners, and people use it for a while, upgrade, move to > a retirement home or whatever, and it goes to someone else. > Then, the cycle repeats. > > Jon > I have noticed a lot of "new" items coming into availability. People have been horders of computers since companies first started letting employees to take them home after depreciation.? Plenty is still out there. I still want to got to Cuba to find a Univac there.? I have this feeling that some thought-lost vintage machines are to be found there. b

9 years, 8 months

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11/35 on eBait

by jnc＠mercury.lcs.mit.edu

So there's another 11/35 up on eBait: http://www.ebay.com/itm/142135416325 10-1/2 'desktop' cabinet. It does have the semi-mythical KE11-F, from what I can see. Not sure what the group of 4 quad cards is (none of the pictures show the numbers clearly) - maybe an RK11-D, if we can believe the tape along the edge? Does have a couple of DL11's, and one 16KB core memory group. Noel

9 years, 8 months

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ka... ching!

by COURYHOUSE＠aol.com

thanks for the info.... I will now have to find where I put it! It was not like the mac mouse and I do not or I did not think I had one for our Lisa but I guess I do now! our SMECC Lisa has a floppy and a hard drive. hard to say what is wrong with it... just a screen full of letters (any info on this is good to hear from you-) Ed# www.smecc.org In a message dated 10/1/2016 7:13:55 P.M. US Mountain Standard Time, cisin at xenosoft.com writes: On Sat, 1 Oct 2016, COURYHOUSE at aol.com wrote: > In reality, what do you feel the mouse is worth? As a mouse, $5 - $20 as a historic artifact, $10 - $1000, depending on prevenance (Engelbart's mouse is worth more than mine)

9 years, 8 months

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ka... ching!

by COURYHOUSE＠aol.com

In reality, what do you feel the mouse is worth? Ed# In a message dated 10/1/2016 4:47:10 P.M. US Mountain Standard Time, js at cimmeri.com writes: On 10/1/2016 6:38 PM, Adrian Graham wrote: > On 01/10/2016 23:52, "Santo Nucifora"<santo.nucifora at gmail.com> wrote: > >> For those who are bidding on the twiggy drives, you can have a Lisa 1 >> faceplate here: http://www.ebay.com/itm/like/222262204758 and a matching >> Lisa 1 mouse here: http://www.ebay.com/itm/172360487433 >> > Hells, he's still trying to flog that mouse for $3K. We've picked that one > apart a few times here :) And the incredible gall of him to have a shipping charge on top of that. Uneffingblinkenbelievable. - J.

9 years, 8 months

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ka... ching!

by COURYHOUSE＠aol.com

Come on! there are still treasures to be found! ( probaby not the 57 chevy though) In a message dated 10/1/2016 4:06:55 P.M. US Mountain Standard Time, cisin at xenosoft.com writes: Yes, it is easy to remember times when IBM 5150, '57 Chevy, Altair, Isetta, functioning TTYs, could be had for the effort of carrying them home. Well before our time, Van Gogh paintings could be had for a bottle of wine.

9 years, 8 months

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ka... ching!

by cctalk＠ibm51xx.net

>Can >everyone afford a Ferrari? No. Has this >seriously damaged old car collecting? But it has seriously damaged my ability to enjoy and collect Ferraris. :D -Ali

9 years, 8 months

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ka... ching!

by vintagecomputer＠bettercomputing.net

I second what Mike says, Chuck. I don't enjoy fighting with these deep pocketed 'collectors', especiallu knowing a lot of this stuff is destined for a trophy case never to be used. ?But.. that's the free market. ?Plus high prices ensure I'm not able to immediately fill my basement. :) I actually find myself more excited by reproduction.. I think as cool as it would have been to own an original TVT building one myself has really made it special. ?Along the way I keep finding new potential projects. ? ? Sent from my Samsung device -------- Original message -------- From: Mike Stein <mhs.stein at gmail.com> Date: 2016-10-01 1:47 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: ka... ching! ----- Original Message ----- From: "Chuck Guzis" <cclist at sydex.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Saturday, October 01, 2016 2:12 PM Subject: Re: ka... ching! > On 10/01/2016 08:27 AM, js at cimmeri.com wrote: > >> Ohhhh, I see.??? Now that makes sense -- Thanks, Al.??? But, like >> airplanes and boats, this looks like only a rich person's game. > > Sigh.? There was a time when I was in this old computer stuff to help > out people who were trying to do something or retrieve otherwise lost > information. > > The game has changed, obviously.? We are in an era now when folks with > too much money and spare time and narcissism want to buy and sell and > display toys rather than play with them. > > Looks like it's time to get out of this racket. > > --Chuck > ===================== Please don't, Chuck! You're one of the most prolific sources of information and helpful advice in this hobby, across almost all platforms, and you would be sorely missed indeed. Obviously I don't have anything close to what you have to contribute, but my reasons for spending time on these lists & forums are more or less the same (as well as the hope of regaining some space in my house ;-). For various reasons I've also from time to time reflected on why I waste so much time on what is just old junk to most people; someone here (Al? Fred?) once asked rhetorically how much money or lost income we spend just storing this crap, and that in particular hit home. I did get rid of a fair bit of stuff after the unpleasantness on the Vintage Forum and have cut back a lot on the time I spend on the various lists, but when I consider 'getting out of the racket' completely the friends I've made and the occasional opportunity to actually help someone with a hard-to-find item or even a piece of advice have kept me 'in it' after all. Please don't go! m

9 years, 8 months

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equipment available - NH

by jwest＠classiccmp.org

I have no idea how many people this person emailed, but I did get emailed directly about it so passing it on.. "Stuff" available (as of today for sure) in central NH. See a few pictures at www.ezwind.net/nh <http://www.ezwind.net/nh> The person said it includes 2 or 3 systems (altos? PDP? Vax?), and a lot of documentation and media. Some other documentation is present for other systems (Honeywell, etc.). They also said some Prime manuals but not sure I buy that. Snippets in email I received: You would not want to see what I have go into the dump. My Dad was a programmer from day until . His life's work is in my basement. Includes a VAX and a Dec PC and an Altos. Also have numerous PDP and PDP material. Many VAX/VMS manuals, multitude of software and manuals. And. We have some PDP=10 and somePDP11 books and manuals. Prime. And. Still available. Location Central NH. Come get it or call me via telephone. Where do you want it shipped and can you pay for freight charge? Want it gone now as soon as possible. Thank you. And. Here are pics of the DEC machines and an Altos. All of the documentation goes with the computers and some is from other mid-range platforms. Some text books as well. I need to sell all of this stuff to an interested buyer. Moving and can't take it with me. If you are serious (and able) to get this equipment within a week or two, then contact me off-list and I'll send an introduction email. Whoever takes this on should be in the NorthEastern US at least.. Best, J

9 years, 8 months

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Looking for professional packaging in Stanford

by iamcamiel＠gmail.com

I'm working on getting a shipment of some 1980's computer equipment >from Stanford, CA to the Netherlands arranged. I've sorted out the pickup, shipping, and delivery part of it, but the systems will need to be palletized prior to pickup. So, I'm looking for someone, or a business, in the area that can go to the location where the systems are with 5 40"x48" pallets and other packaging materials, and then load the cabinets (up to 500 lbs each) onto the pallets, cover them with which corrugated cardboard, secure them to the pallets with straps, and put shrink-wrap all around it. Recommendations for this kind of service are most welcome. Suggestions for alternate packaging options are also welcome. Kind regards, Camiel Vanderhoeven

9 years, 8 months

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Does anyone actually have a KT11-B?

by jnc＠mercury.lcs.mit.edu

So, does anyone out there actually have a KT11-B? I ask because I have just realized that the "KT11-B" sold on eBay: http://www.ebay.com/itm/201624309371 was not, in fact, a KT11-B! If you look closely at the pictures of the unit in the back of the cabinet: http://i.ebayimg.com/images/g/7sYAAOSwGtNXiUAM/s-l1600.jpg https://i.sli.mg/zvOSH1.jpg https://i.sli.mg/6fWvkw.jpg although it has the quad-high backplane of the general type used by the KT11-B, the Flip Chips plugged in are completely not those given in the Flip Chip chart for the KT11-B: http://gunkies.org/wiki/KT11-B_Technical_Manual#Module_Locations Rather, the ones shown in the images show it to be (mostly) an RK11-C. Cool, but nowhere near as cool as a KT11-B. (On a cool scale of 10, I rank the RK11-C as a 6, a TC11 as an 8, and a KT11-B as a 23.) I say "mostly" because there appear to be extra cards on the right hand end; whether those are some sort of upgrade to the RK11-C, or whether someone just stored spare Flip Chips out there, I have no idea. Noel

9 years, 8 months

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Is anyone making replacement clear labels for DEC gear?

by Arno_1983＠gmx.de

On Thu, 29 Sep 2016 12:29:06 -0400, Paul Koning <paulkoning at comcast.net> wrote: > There are inkjet printers that support white ink (or pigment). Those are probably professional type machines, so they are likely to cost over $1000. Possibly you can find a service bureau that will do the job. I think I've > seem them described as machines for making labels (to put onto bottles and boxes etc.). Epson makes them if I remember right, and there are likely to be others. We have a couple @work to put datecodes, tracability numbers etc. on PCB assemblies, but they're probably more commonly used to print e.g. freshness dates directly onto cans, bottles etc. Ours are made by Markem Imaje in France, they can also do logos, 1D and 2D codes, and I _think_ there are white inks for them as well. They are also intended for integration into some machine or process as they depend on the material moving by and sensing its speed by an encoder. Ink droplets are continuously produced from a single nozzle and electrostatically deflected in 2 axes, either into a gutter inside the print head or out through the aperture and onto the medium. Using such to print onto clear adhesive label stock might be a start, but the resolution is hmmm...limited. So long, Arno

9 years, 8 months

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Looking for Bruce from Future Dimensions, Compuware

by microtechdart＠gmail.com

Interesting story (well maybe for some). For any of you who have followed my projects, here is some context: It is one and the same company who used both the Point 4 IRIS systems and the Convergent Technologies MightyFrame systems that I have spent the last 3 years reconstructing and restoring. Some of the guys from that company distinctly remember one single programmer, who was responsible for programming (and possibly sourcing the hardware) for both of these systems for them. The programmer's name was Bruce, who's initials were BAM, and who worked for a company in the Los Angeles California area called Future Dimensions, back in the 1982-1985 area. It is also possible that he later had some connection with Compuware around the same timeframe.. Anyway, I thought I would just put this "out there", to see if anyone reading this might be this very Bruce, or someone who might know who he is. He once wrote this program to run on login of their Point 4 IRIS system. He also often commented his programs as the author as BAM. #BASIC 2/CALLME LIST 10 DIM A$[10],B$[50] 20 IF ERR 0 GOTO 40 30 INPUT ""A$ 40 PRINT "\207\\233\*\215\\215\\215\\215\\215\\215\\215\\21 5\\215"; 41 PRINT "CHUCK, THE LOCATION REPORT IS READY." 42 PRINT "ALSO, THE MODEL REPORT IS READY" 50 PRINT "\215\PLEASE CALL ME. BRUCE. TYPE '0' TO GET OUT OF THIS "; 60 INPUT A$ 70 IF A$="0" CHAIN "VM." 80 GOTO 40 RUN \?* It's my hope that someone finds this at least humorous, maybe even silly, if nothing else. Thanks always, -AJ http://point4iris.com http://MightyFrame.com http://QICreader.com

9 years, 8 months

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Atari 1400XL for sale...

by COURYHOUSE＠aol.com

We have several Atari in the museum's collection is this really rare? I will have to go check which we have... we were given a bath of as new in box cpu, monitors, etc etc... What is a good reference site for us to come up to speed on this gear? Thanks Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 9/28/2016 7:00:47 P.M. US Mountain Standard Time, ethan at 757.org writes: OMG RARE On Wed, 28 Sep 2016, Curt Vendel wrote: > Date: Wed, 28 Sep 2016 19:55:39 -0400 > From: Curt Vendel <curt at atarimuseum.com> > Reply-To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > Subject: Atari 1400XL for sale... > > I saw one of these go on Ebay recently and I'm considering sell my 1400XL. > Looking for a respectable amount, so if you are interested, please don't > offer low ball offers. Please contact me off list to discuss, thank you. > > http://www.atarimuseum.com/computers/8bits/xl/1400xl/1400.html > > > Curt > > > > -- Ethan O'Toole

9 years, 8 months

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BA23 BA11-M power up after long time

by dj.taylor4＠comcast.net

I have a couple of BA23 based boxes and one BA11-M box that I haven't powered on in a couple of years and would like to resurrect them into working PDP11's. How should I go about powering them up without doing any damage? What is an appropriate load for the power supply?

9 years, 9 months

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Labels white on clear

by rodsmallwood52＠btinternet.com

Hi White on clear labels- yes. Size, Content and expected price to me please. Rod (Panelman) Smallwood -- *PDP-8/e PDP-8/f PDP-8/m PDP-8/i Front Panels ex Stock - Order Now*

9 years, 9 months

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Is anyone making replacement clear labels for DEC gear?

by jnc＠mercury.lcs.mit.edu

> From: Ethan Dicks > One aspect of it is that some of the labels are damaged > ... > Before embarking on spinning up a process, I thought I'd ask if anyone > has already done so. This definitely sounds like a place where it would be good to have one person specialize in this, rather than everyone rolling their own. I, for instance, could use a number of these labels (starting with the one that lists the boards in the 11/45 CPU - although that one's black on white). Anyone up for becoming label-meister? Noel

9 years, 9 months

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Is anyone making replacement clear labels for DEC gear?

by ethan.dicks＠gmail.com

Hi, All, I'm restoring some stuff from the mid 1970s and a recent acquisition was previously cleaned of mouse damage but needs to be sanded and repainted by me. One aspect of it is that some of the labels are damaged (but some can probably be masked and painted around). The level of damage I'm talking about looks a bit like this... http://fritzm.github.io/images/pdp11/h742-corrosion.jpg Most of the item intact, but rust and scale to be cleaned, sanded, primed and painted. The damage to the label in that pic is representative. I have access to all the modern tools, so it's easy to print black on clear adhesive sheet, but not so much with white. Before embarking on spinning up a process, I thought I'd ask if anyone has already done so. In particular interest to me is the era from about 1965-1980, >from PDP-8s through PDP-11s and VAX-11 machines, both CPUs and peripherals. I would like to get close matches and I already know in some cases, there just aren't close matches with modern TrueType font files. I can, of course, just take photos of the label areas now, restore the damage, and put on stickers some time in the future, but doing it all at once has its own appeal -ethan

9 years, 9 months

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Unexpected Apple Lisa display - what is it?

by COURYHOUSE＠aol.com

then I head ho some lisa cases later had mc boards shoved in them!? Ed# In a message dated 9/28/2016 9:54:55 P.M. US Mountain Standard Time, santo.nucifora at gmail.com writes: I have this one one of my Lisa's as well. It's like a start up menu that allows you to launch the Finder. That's all I ever do with it. I don't know what the name is but it may be a part of specific version of MacWorks Plus. Sorry, I don't have any more info. Santo On Wed, Sep 28, 2016 at 3:02 PM, Paul McJones <paul at mcjones.org> wrote: > > Date: Wed, 28 Sep 2016 09:15:42 +0000 (UTC) > > From: steven stengel <tosteve at yahoo.com> > > Message-ID: <916931269.6067118.1475054142110 at mail.yahoo.com> > > > > > > What is this unusual Apple Lisa display - some sort of diagnostics? > > > > http://oldcomputers.net/temp/lisa.jpg > > I suspect it is a Macintosh utility (Disk Copy?) Lisas could run Macintosh > software using something called MacWorks. > >

9 years, 9 months

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DEC ALL-IN-1

by curt＠atarimuseum.com

Hi, I had heard many years back that the DOS version of WPS could read and open DEC AI1 files. I was able to get a copy of WPSDOS and tried to no avail. Anyone have any luck opening AI1 files on a PC computer in DOS or Windows to get a file to open with all of the proper formatting and settings? I can open raw with notepad but much of it is buried is formatting code, I'd like to be able to properly open up a file with its formatting in tacked. Thanks, Curt

9 years, 9 months

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Atari 1400XL for sale...

by curt＠atarimuseum.com

I saw one of these go on Ebay recently and I'm considering sell my 1400XL. Looking for a respectable amount, so if you are interested, please don't offer low ball offers. Please contact me off list to discuss, thank you. http://www.atarimuseum.com/computers/8bits/xl/1400xl/1400.html Curt

9 years, 9 months

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Unexpected Apple Lisa display - what is it?

by paul＠mcjones.org

> Date: Wed, 28 Sep 2016 09:15:42 +0000 (UTC) > From: steven stengel <tosteve at yahoo.com> > Message-ID: <916931269.6067118.1475054142110 at mail.yahoo.com> > > > What is this unusual Apple Lisa display - some sort of diagnostics? > > http://oldcomputers.net/temp/lisa.jpg I suspect it is a Macintosh utility (Disk Copy?) Lisas could run Macintosh software using something called MacWorks.

9 years, 9 months

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cctalk Digest, Vol 27, Issue 27

by Wayne.Smith＠warnerbros.com

> Date: Wed, 28 Sep 2016 09:15:42 +0000 (UTC) > From: steven stengel <tosteve at yahoo.com> > To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> > Subject: Unexpected Apple Lisa display - what is it? > Message-ID: <916931269.6067118.1475054142110 at mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > What is this unusual Apple Lisa display - some sort of diagnostics? > > http://oldcomputers.net/temp/lisa.jpg It's the MiniFinder - part of Macintosh System release 2, I believe. https://pbs.twimg.com/media/CZan7K4UkAUvZak.jpg

9 years, 9 months

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KT11-B Paging Option engineering drawings and 'Technical Manual' online

by jnc＠mercury.lcs.mit.edu

So, the KT11-B Paging Option engineering drawings recently made their appearance online: http://bitsavers.org/pdf/dec/pdp11/1120/KT11-B_EngrDrws_Feb72.pdf After a good bit of study of them, I have prepared a 'Technical Manual' for the KT11-B, somewhat in the flavour of the old DEC technical manuals: http://gunkies.org/wiki/KT11-B_Technical_Manual since the prints, by themselves, are fairly inscrutable: an incredibly large mass of gates (almost no MSI, other than a couple of Flip Chips included in the drawings as modules). The article basically attempts to describe how the thing works internally; it includes sections which describe the function (i.e. point) and operation of the circuitry on each page of the prints, and there's also a signal dictionary which describes what all the major signals mean/do. It's not quite absolutely complete, but it's 96% there at this point; I am still working on it. One thing I do intend to add (when I can work it out :-) is to annotate the table of states with info one what each states _means_. If anyone is particularly interested in this device, and reads the article, I would be very grateful for feedback on what's still missing that I could add, suggestions for better organization, etc, etc. Noel

9 years, 9 months

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Unexpected Apple Lisa display - what is it?

by tosteve＠yahoo.com

What is this unusual Apple Lisa display - some sort of diagnostics? http://oldcomputers.net/temp/lisa.jpg

9 years, 9 months

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Sanyo VM-4509 service manual

by aek＠bitsavers.org

As common as this monitor is, I don't see a scanned copy of a manual on any real site. Anyone know of a copy? I went ahead and bought a VM-4512 manual from Tucker to scan. At least that will be around..

9 years, 9 months

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Availability of PDP-8i Front Panel

by rayneal382＠gmail.com

Sir; I working on a project to build a PDP-8i for a combined Compute Science/Electronic Engineering course on design. The purpose of this course is to teach the basic of computer design, build and Programing a computer they must build. This course is still a year down the road. I volunteer to accomplish the building of the prototype system using only the parts available at the time the orginal computer were built. The point of the build is, if a 70+ can sit down with the course material, and design and build a working model of the PDP-8i, the there is no excuse that each student attending the course, should not be able to accomplish the same task. 1. I would like to know if you still have your PDP-8i Front Panel still available? 2. What is the cost for the panel plus shipping to Tucson, Arizona? 3. I understands that you are attempting to re-manufacture the Switch Rocker Assembly? And possibly the PCB board for mounting the switches? a. If so, I would like to know status, and an estimated cost for a complete set? B. Would these items be compatible to with c&k 7000 u-frame series switches assembly? One other question I have is do you have any drawings that give both the dimensions and profile of the mounting frame? If so are they available? I want to Thank You for taking the time ahead of time in answering this E-mail. Respectfully; Ray Neal

9 years, 9 months

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Availability of PDP-8i Front Panel

by anders.k.nelson＠gmail.com

Hi Ray (and everyone), I'm also very interested in knowing the mechanical dimensions of the front panel PCB and positions of the lamps/switches/mounts/etc., but for the PDP-8/e. Does anyone have front panel PCB dimensions and positions for all the UI components I could use? I can make a simple PCB design for each of the main areas (lamps, switch register, other switch groups) that will arrive at a few smaller PCBs, saving a ton of cost. I also have experience in LED display and switch matrix design so we won't need a thousand wires going everywhere when used with an emulator. For example, one USB cable for the entire front panel. There exists the amazing PiDP-8 ( http://obsolescence.wixsite.com/obsolescence/pidp-8) that has all of these items taken care of. But there does /not/ exist one for the PDP-8/e. I await your wisdom, -- Anders Nelson +1 (517) 775-6129 www.erogear.com ---------- Forwarded message ---------- From: Ray Neal <rayneal382 at gmail.com> To: cctalk at classiccmp.org Cc: Date: Sun, 25 Sep 2016 11:59:24 -0700 Subject: Availability of PDP-8i Front Panel Sir; I working on a project to build a PDP-8i for a combined Compute Science/Electronic Engineering course on design. The purpose of this course is to teach the basic of computer design, build and Programing a computer they must build. This course is still a year down the road. I volunteer to accomplish the building of the prototype system using only the parts available at the time the orginal computer were built. The point of the build is, if a 70+ can sit down with the course material, and design and build a working model of the PDP-8i, the there is no excuse that each student attending the course, should not be able to accomplish the same task. 1. I would like to know if you still have your PDP-8i Front Panel still available? 2. What is the cost for the panel plus shipping to Tucson, Arizona? 3. I understands that you are attempting to re-manufacture the Switch Rocker Assembly? And possibly the PCB board for mounting the switches? a. If so, I would like to know status, and an estimated cost for a complete set? B. Would these items be compatible to with c&k 7000 u-frame series switches assembly? One other question I have is do you have any drawings that give both the dimensions and profile of the mounting frame? If so are they available? I want to Thank You for taking the time ahead of time in answering this E-mail. Respectfully; Ray Neal

9 years, 9 months

2
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Replacing HP 700 terminal CRTs

by aek＠bitsavers.org

I picked up a 700/60, the ANSI version of the HP 700-series terminal and when I took it apart to clean, it had a VDC 1401DP31BE inside. I swapped the CRT into a 700/92 which has a slightly different board, and a burned in amber tube, and it worked fine. Also I noticed the 700/96 PCB is almost identical to the 700/60, so I'll try a rom swap to see what happens. Too bad there aren't generally available cross reference list for terminal CRTs. FWIW, the 700/96 has a Philips M32ECD3G CRT. VDC is having a "sale" on the 1401DP4 and P31. The tube price is pretty cheap but the shipping is about double when you price it against their normal $55 price. The shipping goes down with quantity, so if you buy 5 or so it ends up being about $25 a tube and significantly cheaper than all of the ones listed on eBay.

9 years, 9 months

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FYI- Department of Defense Debuts Vannevar Bush Faculty Fellowship, Research Gra

by COURYHOUSE＠aol.com

Department of Defense Debuts Vannevar Bush Faculty Fellowship, Research Grant Now Accepting Proposals The Department of Defense (DoD) has announced a new competition for the "Vannevar Bush Faculty Fellowship" in a recent Funding Opportunity Announcement (FOA) (N00014-16-R-FO12) on www.grants.gov. This program is formerly known as the National Security Science and Engineering Faculty Fellowship (NSSEFF), and both program names will be used for this round of competition during the transition phase. The Vannevar Bush Faculty Fellowship program is sponsored by the Basic Research Office, Office of Assistant Secretary of Defense for Research and Engineering (ASD(R&E)). The Office of Naval Research (ONR) executes the program for ASD(R&E) and is soliciting proposals. This program seeks outstanding researchers to propose basic research that is potentially transformative in topics areas of interest to the DoD. ?I strongly believe DoD faces some of the most exciting and difficult problems to be found in research and technology,? said Secretary of Defense Ash Carter. ?Vannevar Bush fellows will lead the way in transforming and defining new fields of science and in helping the Department look to the future. ? This new program name commemorates Dr. Vannevar Bush (1890-1974). He was the Director of Scientific Research and Development during World War II and the author of "Science, The Endless Frontier.? Bush was also a professor and Dean of Engineering at MIT and later founded a large defense and electronics company. As a devoted teacher, administrator and entrepreneur, Bush made creative and innovative contributions to science, engineering and the nation. During World War II, Bush mobilized America?s scientific resources to achieve advances in defense technologies that were decisive in winning the war. After the war, he was instrumental in formulating sound policies for the advancement of science, engineering and education. Bush, in his famous 1945 report, "Science: The Endless Frontier,? wrote that ?the pioneer spirit is still vigorous within this nation. Science offers a largely unexplored hinterland for the pioneer who has the tools for his task. The rewards of such exploration both for the nation and the individual are great. Scientific progress is one essential key to our security as a nation, to our better health, to more jobs, to a higher standard of living, and to our cultural progress." For more information on how to apply, please visit _http://www.acq.osd.mil/rd/basic_research/program_info/vbff.html_ (http://links.govdelivery.com/track?type =click&enid=ZWFzPTEmbWFpbGluZ2lkPTIwMTYwOTI2LjY0MjI4NDExJm1lc3NhZ2VpZD1NREItUFJELUJVTC0yMDE2MDkyNi42NDIyODQxMSZkY XRhYmFzZWlkPTEwMDEmc2VyaWFsPTE3MzUwOTI3JmVtYWlsaWQ9Y291cnlob3VzZUBhb2wuY29tJ nVzZXJpZD1jb3VyeWhvdXNlQGFvbC5jb20mZmw9JmV4dHJhPU11bHRpdmFyaWF0ZUlkPSYmJg==& &&101&&&http://www.acq.osd.mil/rd/basic_research/program_info/vbff.html?sour ce=GovDelivery) .

9 years, 9 months

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68K Macs with MacOS 7.5 still in production use...

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > Call it anything you want, but we know what Motorola called it. The _first implementation_ may have been 16-bit, but I am in no doubt whatsover (having written a lot of assembler code for the 68K family) that the _architecture_ was 32-bit: - 32-bit registers - many operations (arithmetical, logical, etc) defined for that length - 32-bit addresses Etc, etc, etc, etc. Noel

9 years, 9 months

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UMR computer photos

by jwsmail＠jwsss.com

I was looking thru one of the yearbooks from my time at University of Missouri, Rolla. I found what I think is a photo of a GE-200. I "liberated" this system or one of them to a lab I had, when they were mothballed, and I could swear that is what the systems were. If anyone recognizes them, let me know. This is the first hint of any sort as to what I had. And my memory could be wrong. The square indicator and switch style is very much like what I recall for this particular system. I had gotten handed a couple of very heavy trays of Lambda power supplies which clearly were for some purpose due to how they were mounted. I later found the system I think was a GE-200 neglected in a stockroom in the EE building and recognized that the interconnnect would fit the power supply trays I had. The system was transistorized, not IC I might add. That was why it took 4 or 5 large Lambda supplies. Luckily we had not broken the supply tray up and i was able to play with it. The other thing i think might be of interest are several photos of an analog computer that the EE dept had. I know there was another much larger system in the Physics department as well, and maybe I'll luck out and find a photo of it later. Oh, and the blond at the keypunch. I might add that she is probably retired now. thanks Jim http://s1101.photobucket.com/user/jws1971/library/UMR%20computer%20photos

9 years, 9 months

3
3
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No subject

by lproven＠gmail.com

"Fan belts only exist, briefly, in the intervals between stars Reviewing the informative Turing?s Cathedral Programming the ENIAC, the world's first digital computer (US Army photo) Book review It's a full four years since it was published, but Reg contributor Geoffrey G Rochat has finally gotten around to reading George Dyson's worthy tome Turing?s Cathedral. He finds it's not just a Best Book list lurker, but something actually worth reading." http://www.theregister.co.uk/2016/01/10/turing_cathedral_fan_belts_exist_br… Contains some discussion of level-based versus pulse-based logic in early valve computers which is frankly way over my head but might be of interest to some here. -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

9 years, 9 months

2
1
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Fixing HP 3000 model 37 PSU

by hp-fix＠xs4all.nl

Some time ago I acquired a HP 3000/37 micro, it has a faulty psu. One of the mosfet controlling the power transistor BUX48 was shorted an blew up the whole power stage. Getting new fet's and power transistor wasn't the problem, but the regulator IC also has blown. The regulator IC is marked CC3896F made by SB and also has this number '3713045', the only info I can find on the net is provided by the known IC brokers from China. I'd like to get this box running again, so I'm looking for the IC or a replacement PSU which is an ITT PEC 3945 P/N 6064265. Any other info about it like diagrams and datasheets about the CC3896F are also welcome. Thanks, -Rik

9 years, 9 months

2
2
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UMR computer photos

by COURYHOUSE＠aol.com

Not the GE 200 I am used to! what did it have for a console? Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 9/26/2016 3:21:41 A.M. US Mountain Standard Time, jwsmail at jwsss.com writes: I was looking thru one of the yearbooks from my time at University of Missouri, Rolla. I found what I think is a photo of a GE-200. I "liberated" this system or one of them to a lab I had, when they were mothballed, and I could swear that is what the systems were. If anyone recognizes them, let me know. This is the first hint of any sort as to what I had. And my memory could be wrong. The square indicator and switch style is very much like what I recall for this particular system. I had gotten handed a couple of very heavy trays of Lambda power supplies which clearly were for some purpose due to how they were mounted. I later found the system I think was a GE-200 neglected in a stockroom in the EE building and recognized that the interconnnect would fit the power supply trays I had. The system was transistorized, not IC I might add. That was why it took 4 or 5 large Lambda supplies. Luckily we had not broken the supply tray up and i was able to play with it. The other thing i think might be of interest are several photos of an analog computer that the EE dept had. I know there was another much larger system in the Physics department as well, and maybe I'll luck out and find a photo of it later. Oh, and the blond at the keypunch. I might add that she is probably retired now. thanks Jim http://s1101.photobucket.com/user/jws1971/library/UMR%20computer%20photos

9 years, 9 months

2
1
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Short test programs for pdp 11/34

by paulp1＠gmail.com

You might try looking at the M9312 proms that Don North has made available here: http://www.ak6dn.com/PDP-11/M9312/ If you have an M9312 in your system it will have the basic console prom in it. There are listings of the prom contents on that web page. There is also a simple diagnostic prom that loops forever near the bottom of the page. If you don't have an M9312 then you could probably key in a program from the rom listings provided. I'd bet Don will be along shortly to provide a better explanation.

9 years, 9 months

4
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Replacing HP 700 terminal CRTs

by COURYHOUSE＠aol.com

the only difference might be the keycaps and ROMs! let me know! Ed# In a message dated 9/25/2016 9:35:27 P.M. US Mountain Standard Time, davidkcollins2 at gmail.com writes: Apart from the different colors I'd be surprised if all the tubes weren't interchangable between the 700 series. I think the only difference between models is the logic PCA and ROMs etc. The 700 series service manual would confirm one way or the other. David Collins (Sent from out of office) > On 26 Sep. 2016, at 3:08 am, Al Kossow <aek at bitsavers.org> wrote: > > I picked up a 700/60, the ANSI version of the HP 700-series terminal and when I took it > apart to clean, it had a VDC 1401DP31BE inside. I swapped the CRT into a 700/92 which > has a slightly different board, and a burned in amber tube, and it worked fine. > Also I noticed the 700/96 PCB is almost identical to the 700/60, so I'll try a > rom swap to see what happens. > > Too bad there aren't generally available cross reference list for terminal CRTs. > FWIW, the 700/96 has a Philips M32ECD3G CRT. > > VDC is having a "sale" on the 1401DP4 and P31. The tube price is pretty cheap but the > shipping is about double when you price it against their normal $55 price. The shipping > goes down with quantity, so if you buy 5 or so it ends up being about $25 a tube and > significantly cheaper than all of the ones listed on eBay. > > >

9 years, 9 months

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ISO: schematics for Bunker Ramo BR2412

by derschjo＠gmail.com

Hi all -- I have myself a Bunker Ramo BR2412 12-bit minicomputer. This is similar (but not identical) to the Nuclear Data ND812. There are schematics / maintenance manuals for the ND812 on Bitsavers which have been immensely helpful. The main difference between the BR2412 and the ND812 is that the BR2412 uses Intel 1103 RAMs (backed up by a big lead-acid battery) rather than core memory. (There are other more subtle differences, the ND812 used incandescent bulbs on the front panel, the BR2412 has LEDs). I've been working on restoring this thing (which has been an interesting challenge -- there are 325 wire-wrap sockets with dodgy connections with the ICs to deal with) and I've been making steady progress, but I've finally reached a point in my debugging where the schematics differ from reality, as I get closer to the memory interface. I can likely work things out by hand, but having a real set of documents would obviously be helpful. I realize this is a long shot since it's a pretty obscure machine, but I thought I'd ask before I dive in too deep here. Oh, and while I'm asking for impossible things, if anyone has any *parts* for one of these, let me know -- I'm missing the TTY interface... Thanks! Josh

9 years, 9 months

1
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Replacing HP 700 terminal CRTs

by COURYHOUSE＠aol.com

sounds like a good reason to have a rom cloning party too! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 9/25/2016 6:08:39 P.M. US Mountain Standard Time, aek at bitsavers.org writes: I picked up a 700/60, the ANSI version of the HP 700-series terminal and when I took it apart to clean, it had a VDC 1401DP31BE inside. I swapped the CRT into a 700/92 which has a slightly different board, and a burned in amber tube, and it worked fine. Also I noticed the 700/96 PCB is almost identical to the 700/60, so I'll try a rom swap to see what happens. Too bad there aren't generally available cross reference list for terminal CRTs. FWIW, the 700/96 has a Philips M32ECD3G CRT. VDC is having a "sale" on the 1401DP4 and P31. The tube price is pretty cheap but the shipping is about double when you price it against their normal $55 price. The shipping goes down with quantity, so if you buy 5 or so it ends up being about $25 a tube and significantly cheaper than all of the ones listed on eBay.

9 years, 9 months

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Q-Bus Memory Diagnostics and Repair

by jnc＠mercury.lcs.mit.edu

> If your CPU is an 11/73 (which can directly 'access' [hate that verbism > :-] all of memory from ODT, unlike the 11/23 which is restricted to the > bottom 256KB), try playing around with a failing location, and its > alternative, directly, and see if a store of random data into one can be > read back directly from the other Note: The 11/'73' CPU powers up with the cache enabled, even for ODT! So if you write xxx into some location, if you then read it back, you will get the correct data even if the memory location is busted - the CPU is getting the (correct) data from the cache. To have your 'memory' reads and writes actually go to the memory, you need to turn off the cache: 17777746/ 02000 Note that starting the machine does an INIT, which will again enable the cache. > I'll start the Computer History wiki page for this board with that info. Started: http://gunkies.org/w/index.php?title=CMV-4000 Currently has only the memory chip info, I'll add the config stuff as I get it doped out. Noel

9 years, 9 months

2
2
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Decoding kryoflux stream for HP9895A

by denise.devries＠flinders.edu.au

Does anyone know of documentation for the HP9895A format with its own M2FM encoding? I have a kryoflux preservation stream but so far can make no sense of it. Denise ________________________________

9 years, 9 months

5
12
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DOS laptops up for grabs

by mark＠markesystems.com

I've got quite a stack (more than a dozen) first-generation DOS laptops that are headed for the recycler unless someone wants them. They re mostly Toshiba T-1000 or T1000SE units, but there's a Tandy in there also, and probably a another outlier or two. There are also a few Portege's running Win-95, and a few fabric laptop cases. At one time all of these worked (obviously), but I'm sure that most don't now, for various reasons. A few may have been cannibalized a bit, but for the most part all the parts are there. I'm not looking for any cash for these, but I don't want to pay anything (like shipping) either, especially since the electronics recycler is less than three miles from my house. If anyone wants to pick these up (I'm in San Carlos, near Redwood City, CA), or wants to pay me to ship them (at cost only), let me know. At the end of this week (01-Oct-2016), they'll be gone... ~~ Mark Moulding -----Original Message----- From: cctalk-request at classiccmp.org Sent: Sunday, September 25, 2016 10:00 AM To: cctalk at classiccmp.org Subject: cctalk Digest, Vol 27, Issue 24 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. MSI Texscan SpectraGen SG4B (Jim Brain) 2. Re: DEC TC11 maindec listings? (Al Kossow) 3. Re: DEC TC11 maindec listings? (Don North) 4. Re: DEC TC11 maindec listings? (Mattis Lind) 5. Electronic surplus in the southwest (William Maddox) 6. Re: Decoding kryoflux stream for HP9895A (Eric Smith) 7. AC Filter Cap Brand Recommendations (Craig Ruff) 8. Re: AC Filter Cap Brand Recommendations (Peter Cetinski) 9. Re: AC Filter Cap Brand Recommendations (Chuck Guzis) 10. Digital Storage Architecture - Media Format (Rob Jarratt) ---------------------------------------------------------------------- Message: 1 Date: Sat, 24 Sep 2016 19:50:56 -0500 From: Jim Brain <brain at jbrain.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: MSI Texscan SpectraGen SG4B Message-ID: <b689fdda-69db-57fd-9874-67476dd62c26 at jbrain.com> Content-Type: text/plain; charset=utf-8; format=flowed I know it's a long shot, but does anyone have a manual for a SpectraGen 4B Video Title Generator? I am trying to resurrect one, and it seems to be a Z80-based unit. Jim -- Jim Brain brain at jbrain.com www.jbrain.com ------------------------------ Message: 2 Date: Sat, 24 Sep 2016 20:32:57 -0700 From: Al Kossow <aek at bitsavers.org> To: cctalk at classiccmp.org Subject: Re: DEC TC11 maindec listings? Message-ID: <1fe8bb6e-28bd-c997-c52c-f6ddb9e26b98 at bitsavers.org> Content-Type: text/plain; charset=utf-8 I had it on fiche, which I scanned this afternoon. It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp along with rev E of the XXDP+ users guide. I'll probably also do the RX02 diags if I can find them for Don, though he may have them on fiche. The step and repeat fiche scanner isn't on line yet so I used the Canon manual positioning one. It's tedious, and it gets out of focus easily, but they are better than nothing. On 9/21/16 12:38 PM, Mattis Lind wrote: > I have been looking for TC11 maindec listings in the usual places, but > didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and > ZTCE. > > Does anyone know of an online location or happen to have an offline paper > original? > > /Mattis > ------------------------------ Message: 3 Date: Sat, 24 Sep 2016 21:08:19 -0700 From: Don North <north at alum.mit.edu> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: DEC TC11 maindec listings? Message-ID: <90d93153-2109-0f5f-6b1e-c1d4daa7a83b at alum.mit.edu> Content-Type: text/plain; charset=utf-8; format=flowed On 9/24/2016 8:32 PM, Al Kossow wrote: > I had it on fiche, which I scanned this afternoon. > It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp > along with rev E of the XXDP+ users guide. > > I'll probably also do the RX02 diags if I can find them for Don, though > he may have them on fiche. I was able to get ZRXDC0, ZRZEA0, and ZRXFB0 listings from the fiche images on http://www.retrocmp.com/tools/pdp-11-diagnostic-database so I am fine for RX02 diagnostics listings. Don > The step and repeat fiche scanner isn't on line yet so I used the Canon > manual positioning one. It's tedious, and it gets out of focus easily, but > they are better than nothing. > > > On 9/21/16 12:38 PM, Mattis Lind wrote: >> I have been looking for TC11 maindec listings in the usual places, but >> didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and >> ZTCE. >> >> Does anyone know of an online location or happen to have an offline paper >> original? >> >> /Mattis >> > ------------------------------ Message: 4 Date: Sun, 25 Sep 2016 07:53:58 +0200 From: Mattis Lind <mattislind at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: DEC TC11 maindec listings? Message-ID: <CABr82SJWUVc7HURrEhaLoL7A7CEo4kPyAp+Hhfk3Z87MhaZjvA at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 2016-09-25 5:32 GMT+02:00 Al Kossow <aek at bitsavers.org>: > I had it on fiche, which I scanned this afternoon. > It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp > along with rev E of the XXDP+ users guide. > Exactly what I needed! Thanks a lot Al! /Mattis > > I'll probably also do the RX02 diags if I can find them for Don, though > he may have them on fiche. > > The step and repeat fiche scanner isn't on line yet so I used the Canon > manual positioning one. It's tedious, and it gets out of focus easily, but > they are better than nothing. > > > On 9/21/16 12:38 PM, Mattis Lind wrote: > > I have been looking for TC11 maindec listings in the usual places, but > > didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and > > ZTCE. > > > > Does anyone know of an online location or happen to have an offline > > paper > > original? > > > > /Mattis > > > > ------------------------------ Message: 5 Date: Sun, 25 Sep 2016 06:41:16 +0000 (UTC) From: William Maddox <wmaddox at pacbell.net> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Subject: Electronic surplus in the southwest Message-ID: <166539568.4256917.1474785676417 at mail.yahoo.com> Content-Type: text/plain; charset=UTF-8 I will be visiting Albuquerque, Phoenix, Tucson, and various points nearby and in-between shortly.Any recommendations on electronics surplus and junk shops to check out? ?Some of the most famous, like the Black Hole in Los Alamos are long gone. ?Any other must-see attractions for the classic computer geek? --Bill ------------------------------ Message: 6 Date: Sun, 25 Sep 2016 02:32:34 -0600 From: Eric Smith <spacewar at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Decoding kryoflux stream for HP9895A Message-ID: <CAFrGgTT31V-4HPpJU1_9TXVyMMebOd3A9mW3oSEtKZWoQxxExw at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 On Tue, Sep 20, 2016 at 7:42 AM, Denise de Vries <denise.devries at flinders.edu.au> wrote: > Does anyone know of documentation for the HP9895A format with its own M2FM > encoding? > I have a kryoflux preservation stream but so far can make no sense of it. On Wed, Sep 21, 2016 at 12:59 AM, Christian Corti <cc at informatik.uni-stuttgart.de> wrote: > I've already written a decoder for the HP 9885/9895 format. Denise already > sent me his image, but I haven't had the time to try decoding it yet... Denise sent me the image as well. dfitoimd has now been renamed to fluxtoimd, as it now supports both DiscFerret and KryoFlux image input. I've partially added HP M2FM format; it now correctly decodes the address fields, but I have a bit more work to do on the data fields. I expect to have it completed tomorrow. > - 0xD0: ECC data address mark Any idea how they use that? Aside from that being included in the list of address marks in the service manuals, it's not described at all. Since the 7902/9885/9895 don't do ECC, perhaps it was reserved for future use. ------------------------------ Message: 7 Date: Sat, 24 Sep 2016 21:31:23 -0600 From: Craig Ruff <cruff at ruffspot.net> To: cctech at classiccmp.org Subject: AC Filter Cap Brand Recommendations Message-ID: <AE56D6F8-11C3-457E-A464-5709245849D8 at ruffspot.net> Content-Type: text/plain; charset=utf-8 Wouldn?t you know it, the same day I decide to order a ribbon and some paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap (C1 on the MFIL board), expelled its magic smoke rather impressively. After some cleanup, the printer has been banished to the garage until the smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What manufacturers have good reliability for this application, in your opinion? ------------------------------ Message: 8 Date: Sat, 24 Sep 2016 23:38:08 -0400 From: Peter Cetinski <pete at pski.net> To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> Subject: Re: AC Filter Cap Brand Recommendations Message-ID: <35029F98-7F90-405F-85E9-3611BE2DF2BC at pski.net> Content-Type: text/plain; charset=utf-8 On Sep 24, 2016, at 11:31 PM, Craig Ruff <cruff at ruffspot.net> wrote: > > Wouldn?t you know it, the same day I decide to order a ribbon and some > paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap > (C1 on the MFIL board), expelled its magic smoke rather impressively. > After some cleanup, the printer has been banished to the garage until the > smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What > manufacturers have good reliability for this application, in your opinion? That?s a common item on Tandy power supplies so I?ve replaced a lot of these. I?ve used this replacement numerous times with great success. https://www.digikey.com/product-detail/en/kemet/PMR209MC6100M047R30/399-751… <https://www.digikey.com/product-detail/en/kemet/PMR209MC6100M047R30/399-751…> ------------------------------ Message: 9 Date: Sat, 24 Sep 2016 22:58:53 -0700 From: Chuck Guzis <cclist at sydex.com> To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> Subject: Re: AC Filter Cap Brand Recommendations Message-ID: <e7b74d80-ceab-4a41-2b31-4a367667b52b at sydex.com> Content-Type: text/plain; charset=utf-8 On 09/24/2016 08:31 PM, Craig Ruff wrote: > Wouldn?t you know it, the same day I decide to order a ribbon and > some paper for my HP 82905B (aka Epson MX80) printer, the AC line > filter cap (C1 on the MFIL board), expelled its magic smoke rather > impressively. After some cleanup, the printer has been banished to > the garage until the smell diminishes. It appears to be a 250 V, 0.1 > ?F X type. What manufacturers have good reliability for this > application, in your opinion? > Any of the major brands should be good--Kemet, Panasonic,.. --Chuck ------------------------------ Message: 10 Date: Sun, 25 Sep 2016 13:30:36 +0100 From: "Rob Jarratt" <robert.jarratt at ntlworld.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Digital Storage Architecture - Media Format Message-ID: <00b601d21728$9f1eeb20$dd5cc160$(a)ntlworld.com> Content-Type: text/plain; charset="us-ascii" The VMS documentation mentions specification for the Digital Storage Architecture that cover media formats. I have looked at the DSA folder on bitsavers and cannot see any document that covers media formats. Is this documentation available anywhere? Thanks Rob End of cctalk Digest, Vol 27, Issue 24 **************************************

9 years, 9 months

1
0
0 0

DEC TC11 maindec listings?

by mattislind＠gmail.com

I have been looking for TC11 maindec listings in the usual places, but didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and ZTCE. Does anyone know of an online location or happen to have an offline paper original? /Mattis

9 years, 9 months

3
7
0 0

Digital Storage Architecture - Media Format

by robert.jarratt＠ntlworld.com

The VMS documentation mentions specification for the Digital Storage Architecture that cover media formats. I have looked at the DSA folder on bitsavers and cannot see any document that covers media formats. Is this documentation available anywhere? Thanks Rob

9 years, 9 months

2
1
0 0

Electronic surplus in the southwest

by wmaddox＠pacbell.net

I will be visiting Albuquerque, Phoenix, Tucson, and various points nearby and in-between shortly.Any recommendations on electronics surplus and junk shops to check out? ?Some of the most famous, like the Black Hole in Los Alamos are long gone. ?Any other must-see attractions for the classic computer geek? --Bill

9 years, 9 months

1
0
0 0

AC Filter Cap Brand Recommendations

by cruff＠ruffspot.net

Wouldn?t you know it, the same day I decide to order a ribbon and some paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap (C1 on the MFIL board), expelled its magic smoke rather impressively. After some cleanup, the printer has been banished to the garage until the smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What manufacturers have good reliability for this application, in your opinion?

9 years, 9 months

3
2
0 0

MSI Texscan SpectraGen SG4B

by brain＠jbrain.com

I know it's a long shot, but does anyone have a manual for a SpectraGen 4B Video Title Generator? I am trying to resurrect one, and it seems to be a Z80-based unit. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

9 years, 9 months

1
0
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HP 7970B/E Tape Unit manual available

by jnc＠mercury.lcs.mit.edu

Hi, all, I have a HP 7970B/E Tape Unit Diagrams and Parts Manual available; I got it with a group of other manuals, and I don't have any use for it. I'd prefer to get something in return for it (some PDP-11 manual/print I don't have, or something), but mostly I want to get this into the hands of someone who can actually use it (it's already on Bitsavers, so it doesn't fill a lacuna). Noel

9 years, 9 months

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Short test programs for pdp 11/34

by jnc＠mercury.lcs.mit.edu

> From: J?rg Hoppe > I'm talking of that data path check up after power-on. Huh, I never knew about that. (The manuals don't mention it.) I was just last night looking at the microccode for the 11/04 (a very similar machine - they share the front consoles, etc), and it doesn't have anything like that (see the /04 power on ucode at pg. 130 of EK-KD11D-TM-PRE). Looking through that /34 ucode flow diagram, I discovered that the /34 supported the M[FT]PS instuctions - I thought that was only the QBUS CPU's, etc. Live and learn! :-) Noel

9 years, 9 months

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Short test programs for pdp 11/34

by jnc＠mercury.lcs.mit.edu

> From: Devin Davison >> If the machine HALTs on power-up, some micro coded diagnostic failed There are no microcoded diagnostics in the 11/34. The boot ROMs do contain minimal CPU and memory diagnostics. > using pdp11gui to load the dec diagnostics sounds like the way to go. The CPU and UNIBUS have to be basically working for the boot ROMs (and the console emulator they provide via the console serial line) to work; ditto for PDP11GUI. Note that the console emulator will work without working memory, provided the correct boot option (console emulator without diagnostics) is configured on the card that holds the boot ROMs. You won't, of course, be able to load anything without working memory. And the Programmer's Console doesn't require working memory either, and a lot less of the CPU working - the CPU only has to respond to HALT requests from the console. (I had one /04 - very similar to the /34, uses the same front console - which didn't run because there was a bit stuck on in all the registers - but the console still worked.) It does require the UNIBUS not to be wedged, though. Noel

9 years, 9 months

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Seeking docs and schematic for Novation CAT modem

by ethan.dicks＠gmail.com

Hi, All, Good seeing many of you at VCF-midwest. One of my scores was an Atari-badged Novation CAT modem. Digging around for any docs, what I'm mostly finding is lots of info about Novations Apple II products, and scant mention with thumbnail pictures of the original CAT acoustic coupler, that and dozens of sites copying the Wikipedia article. Anyone have any CAT info? I can reverse-engineer the schematic, but if that's already been done, no reason for me to redocument the wheel. I know it wants a 20VAC 400mA PSU, but I want to check how strict that is (i.e., 18VAC @ 500mA or 24 VAC @ 350 mA, for example, which may be easier to find than an unregulated 20VAC PSU). I would love to play with a CBM 8010 (since I have so many PETs) but I do happen to have a couple of IEEE-488 to RS-232 devices, which will work fine with this Atari 830/Novation CAT. -ethan

9 years, 9 months

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