test-drb May 2016

test-drb@ccmp.vtda.org

202 participants
259 discussions

by anders＠abc80.net

Hi, I tried to run the diskless controller test on my PDP8/A. It fails before any tests has been executed. I suspect that my RL8A controller is broken. The CPU tests and the memory tests works fine. The test stopped @ address 5713 (display shows 5714), MD buff = 7402, AC = 0 Does anybody have the source code to this test? Earlier someone got the test instructions photographed from microfishie. The complete story is that the machine worked just fine, booted OS/8. Then I changed the CPU from KK8A -> KK8E. The KK8E had some problems, but works fine now. But now the machine doesn't boot OS/8 with any of the CPU's. The diskless controller test stops at the same location with any CPU. /Anders

7 years, 3 months

The RSTS riddle.

by rodsmallwood52＠btinternet.com

Hi Further to my posts this morning I have one last hurdle to jump. 1. I have a VAX with a TK70 attached and a TQK70 controller. 2. The tape drive works just fine. 3. Also on the VAX I have the correct tape (.TAP) image file for a RSTS/E V10 install tape. 4. I would like to copy the .tap file to the tape so as to end up with a bootable install tape. 5. I then power down the VAX and move the controller to an 11/83. (The drive is external with its own PSU) 6. Boot the install tape and go from there. So suggestions please as to how to do 4. Rod Smallwood

7 years, 3 months

Scraping DEC Equipment

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 22 May 2011 22:56:32 -0500 > From: Daniel Seagraves <dseagrav at lunar-tokyo.net> > Subject: Re: Scraping DEC Equipment > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <C7A98127-DFF4-41B1-A6AF-5DFCA234D286 at lunar-tokyo.net> > Content-Type: text/plain; charset=us-ascii > > I need a tractor feed assembly for a LA100, are the ones on the 120 > compatible? ----- Reply: Apparently not, but I might have one for an LA100. mike

7 years, 4 months

PDP-11/94-E

by rodsmallwood52＠btinternet.com

Hi I'm trying to get my 11/94 running. Its a hybrid having both Q and Unibus. The CPU card has a KDJ11-E 18Mhz processor with 4Mb ram and six serial ports plus the console on board. Apart from a voltage monitor card that's all there is in the Qbus section. Between the Q and Unibus sections is a special convertor card (KTJ-11B UNIBUS adapter.) After the KTJ-11B I have one slot with an RX211 8in floppy controller in it. All of the other slots have bus grant cards except the last one that has a terminator card and a MLM card. On switch on the console display comes up. Whilst it performs the same functions as the one in the manual it looks different. What ever I do by way of setting up devices I can't get it to talk to the RX211. it just says No Controller. Ideas anybody? Rod Smallwood

7 years, 4 months

Star install disks

by g-wright＠att.net

Date: Mon, 30 May 2016 12:18:37 -0700 From: "r.stricklin" <bear at typewritten.org> To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> Subject: Re: Xerox Star install floppies Message-ID: <7507C1FC-A36D-4130-B729-3F0FD6F2CDB5 at typewritten.org> Content-Type: text/plain; charset=us-ascii On May 29, 2016, at 9:15 PM, David Griffith wrote: > This person then stated that Al Kossow might or might not have a full set.? In any case, it's not on Bitsavers.? Al expressed interest in a set that I offered a couple months ago, but he never followed up on that.? So, would someone please confirm the existance of a full set of install floppy images for the Xerox 8010 Star somewhere? I've been buying those lots on eBay as I've seen them come by. I sent Al copies of them last week, or possibly the week before (the days run together). I'm not sure whether they constitute a full set of anything, either, but I assume Al will let me know. > ViewPoint 1.1 (file check) Of the four you listed, this one I don't have. ok bear.======================================================================== Don Maslin had most of them.? I sent copies of mine to him and he sent copies of his to me. of coarse that a few years ago. Jerry

7 years, 4 months

DEC modules in a 4-slot backplane

by witchy＠binarydinosaurs.co.uk

Hi folks, Been rummaging in the garage for stuff I'll be exhibiting in the UK in July and found this: http://www.binarydinosaurs.co.uk/LSI1123.JPG It's a 4-slot cage containing: M7270 11/03 CPU M7944 4K RAM (x2) M8027 LP11 There's a fault label on the M8027 saying it occasionally drops characters. Question is, anyone know what it was out of? Cheers! -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

7 years, 4 months

Monster 6502

by aek＠bitsavers.org

Here is a video of it running at Maker Faire http://makezine.com/2016/05/27/this-functioning-monster-6502-is-a-larger-th…

7 years, 4 months

HP Vectra CS Portable

by swiftgriggs＠gmail.com

http://hpmuseum.net/display_item.php?hw=219 Speaking of the HP Vectra keyboard. This portable Vectra here has a *very* similar keyboard to the one that I was mentioned earlier in the keyboard thread. I'd imagine it's of the same ilk. Something about the design of these old "slab" portables has always been interesting to me. I know Dell has made a few "portables" post 2000 that are much larger and more of a "portable desktop replacement". I've seen them include somewhat-nicer keyboard with laptops to distinguish them (I'm thinkin' of the Thinkpad and some HP elite laptops). However, I haven't seen any modern machines ('cept luggables) that include "real" keyboards like this Vectra, Compaq, and others managed to do in the 80's. Also I love this photo. I could write 10 different short stories about what is *REALLY* going on this promotional photo: http://hpmuseum.net/images/VectraPortableCS_1987-PromoPhoto-60.jpg Manager = Blaine Jones Scientist = Janice Thornwinkle [Scene A] Blaine: Once I copy your research to this disk it'll prove that your research has no merit. We are probably going to shut the project down. Janice: Really sir?! We just about cured cancer here! [Scene B] Blaine: I just know you are going to spill some of that blue crap in those beakers on this new machine. I bet I can back up all your data on this floppy alone. Then I'm taking this laptop back to my office to watch porn. It's got CGA, after all. Janice: What? No. I never.. I mean... [Scene C] Blaine: Well, since this is your last day. I'll need a copy of that graph. Janice: Hmm? (I think I could kill him with this mechanical arm thing.) .... and so forth.... -Swift

7 years, 4 months

Windows use in medical spaces (Re: vintage computers in

by r_a_feldman＠hotmail.com

>Message: 111 > Date: Sat, 28 May 2016 09:18:11 -0700 (PDT) > From: geneb <geneb at deltasoft.com> > What I don't understand is why Windows is being used on these devices at > all. It specifically states in the license that it's not to be used with > life-critical systems or infrastructure (like nuclear plants). I wish I > could find a reference - I can't recall where I read that... That disclaimer was for Sun Java, not Windows itself. Bob

7 years, 4 months

TU58 yet one more time

by shadoooo＠gmail.com

Hello, I'm very interested on TU58, as I have a lot of tapes that I need to dump, plus I would create some new (console at start) for my vax 730. What I'm trying to do: use a drive mechanism connected with to modern mixed signal microcontroller with USB port. The device will be able to control the tape speed and to sample with ADC and DAC the analog signals on the read / write heads, transferring the bare samples with almost no filtering to a PC. Then all the processing can be done via software. In this way, a weak data track can be maybe recovered, and an empty tape can be formatted. It's impossible to use the tape drive with a DEC machine or via serial port, but I'm not trying to emulate the standard TU58. If somebody is interested, I can share my ideas, I already begun with the hardware. But I have to fix the capstan too... Andrea

7 years, 4 months

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test-drb May 2016