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
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
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.
As others have implied, the DEC8235 is a Signetics 8235N. It's available
>from obsolete part distributors. A quick search turns up this source:
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:
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
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
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 :)
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
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
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.
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...
> 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 [...]
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