test-drb September 2015

test-drb@ccmp.vtda.org

198 participants
312 discussions

by vlad.stamate＠gmail.com

While I was trying to read the ROM in my 9121 for Eric Smith I found out that my Wellon VP-280 could not do it (it could not recognize it and only read FF FF FF FF). I could use it however to dump the ROM of an IBM PS2 that I cannot boot anymore (so it is not entirely useless). So I am asking what you all use to dump various ROMs from vintage PCs/peripherals/etc? Is there a good brand out there of E(E)PROM programmer? Do you roll your own solution with an Arduino/RaspeberryPi? Thanks, Vlad.

10 years

'New' PDP-11 prints

by jnc＠mercury.lcs.mit.edu

A lengthy, and pleasant visit with Paul A, post-VCFMW (BTW, belated congrats on that, Jason - I don't know where my brain was last night - fried from the long drive yesterday, probably), has produced a number of missing PDP-11 FMPS's! Most importantly, we now have the 11/73 prints, which I will be scanning Real Soon Now. (So now I can have a crack at fixing all the broken ones I have! :-) That does leave us needing the 11/83/84 CPU prints, so if anyone has a set... I also found prints for the MF11-U, MF11-W, and MM11-Y; none of which appear to be on-line (although the MF11-U ones might be in the 11/05S print set, which ISTR is online). So I'll have a lot of scanning to do when I get home. The reason for this message is to ask if anyone has a special need for any in particular; if so, I will move those to the head of the list for scanning. I don't think the ME11-L prints are online either, but those I have in my 11/05 print set - I'll have to see if that print set is online somewhere, no point re-scanning them, if so. There are a number of things like that (e.g. the H786 power supply for the BA11-N; not available separately, but in the 11/23 FMPS, if you know to look there): we ought to produce some sort of registry, to collect such information in one place. Noel

10 years

Dec 8235 IC?

by steve＠tronola.com

Hi Simon, As others have implied, the DEC8235 is a Signetics 8235N. It's available >from obsolete part distributors. A quick search turns up this source: http://www.4starelectronics.com/part_detail/8235N.html While the RFQ instead of a price is bad news in some places, I've had good results with that in the obsolete parts arena. > is there a list of equivalents for DEC ic's? --- Thought I had a longer list somewhere but this short list is what I find at the moment: DEC# Generic ---------------------- 97401 7401 8881 7439* Quad 2-inp NAND OC 8266 8266 Signetics 2-inp 4-bit wide mux 8270 8270 Signetics may = TI 74178 according to posts in cctech. 8271 8271 Signetics 4-bit SR in 16p pkg = TI 74179 8251 N8251N Signetics BCD/decimal decoder in 16p pkg 5380 SP380 Signetics 5314A SP314A Signetics 8640 DS8640 National 380 (?) SP384A Signetics Quad 2-in OR gate *Note that some DEC8881s have been reported as having 7439 markings on the bottom. Steve Lafferty

10 years

Serial Disk Server to PDP-8/A

by charlesmorris800＠centurytel.net

I just installed Kyle Owen's Serial Disk Server on my 8/A (at high speed via an Omni-USB card I got from Philipp Hachtmann). There was a bit of a learning curve for me since I've never used any *nix programs before, or heard of Cygwin... But Kyle was very helpful, exchanging several emails this afternoon and it only took me a couple of hours to get everything figured out, up and running. It even comes with the indispensable diagpack2.rk05 OS/8 image already embedded in the .zip file, and it's now running on the real hardware. Haven't tried uploading anything yet but I'm sure that will work too! NOW maybe I can get my RL02 controller card (and the rest of the hardware, the power supply has started glitching again) debugged. Many thanks to Kyle for creating this very useful software :) -Charles

10 years

Reading ROMs

by radiotest＠juno.com

At 07:56 AM 9/3/2015, Vlad Stamate wrote: >So I am asking what you all use to dump various ROMs from vintage PCs/peripherals/etc? For 1980s ROMs I still use the Serial EPROM Programmer published in BYTE by Steve Ciacia in the mid-80s. Dale H. Cook, Roanoke/Lynchburg, VA Osborne 1 / Kaypro 4-84 / Kaypro 1 / Amstrad PPC-640 http://plymouthcolony.net/starcity/radios/index.html

10 years

MEM11 Status Update

by cube1＠charter.net

RK05 would be suitable Guy Sotomayor <ggs at shiresoft.com> wrote: > > >On 9/2/15 8:42 AM, js at cimmeri.com wrote: >> >> >> On Tue, Sep 1, 2015 at 11:39 AM, Jay Jaeger<cube1 at charter.net> wrote: >> >>> On 9/1/2015 10:01 AM, Ethan Dicks wrote: >>>>> run Unix V1 >>>> I am very interested in the MEM11 for this exact reason. I have a >>>> PDP-11/20 that I'd love to do this with. >>>> >>> You could also try Mini-Unix on your 11/20, which might support a >>> wider range of devices. >> >> Very interesting. Does Guy's MEM11 provide what's needed for Mini >> Unix without having to write special drivers? >> >Not sure what Mini-Unix requires w.r.t. devices. > >TTFN - Guy >

10 years

Multitech MicroProfessor

by wrm＠dW.co.za

> >Possibly a long shot since I think the MPF was only a UK/Europe thing but At least one made it to South Africa. But no, I have neither the expansion board nor the manual I'm afraid. W

10 years

Wanted: ROM images from HP 9895, 82901/82902, and other HP-IB disk drives

by spacewar＠gmail.com

If anyone has dumped the ROMs from the HP 9895 (8-inch) or 82901/82902 (5 1/4-inch) HP-IB disk drives, which use the Amigo command set, I'd appreciate copies of the images, ideally along with the HP part numbers of the EPROMs (probably 09895-xxxxx and 82901-xxxxx). For that matter, I'd be interested in ROM images from any of HP's other HP-IB disk drives, floppy, hard disk, or combined. Also ROM images from the 9114A and 9114B HP-IL disk drives. I already have one ROM image each from the 9114A and 9114B, but there were multiple firmware versions. Thanks! Eric

10 years

VCFMW

by marc.verdiell＠gmail.com

I wanted to extend my thanks to the organizers of this event, and to Jay in particular who showed me the way around bringing up a cantankerous HP 1000 E system in real time, and somehow never got tired of my newbee questions. And the Chinon FR-506 5.25" drive that I picked up there for a very reasonable price, unlike the one I had bothered you about in a previous thread, actually works! All in all a very worthwhile way to spend award mileage on a trip from California to Chicago... Marc > From: "Jay West" <jwest at classiccmp.org> > Subject: VCFMW > > VCFMW is over, and I wanted to give a huge CONGRATS to Jason for the > resulting show that he put on [...] > > J

10 years

KV-S3065CW scanners

by aek＠bitsavers.org

http://www.ebay.com/itm/201392632552 this is a good deal if the paper path isn't scratched up in them. the CW model has a 11" width feed and can scan a sheet 6 feet long. these are the ones I've been using for 5+ years just don't need any more right now

10 years

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test-drb September 2015