> BSD 2.11 should run fine on a 34 or 23
You need split I&D for 2.11BSD, that rules out the 11/23 and IIRC the 11/34 as
well. I want to say 2.9BSD will run though.
Thanks,
Jonathan
Mile High Test/Gardien Services in Colorado will scan boards for you and give
you ready-to-go Gerbers. It cost around $250 to have an OSI sized 2-layer board
scanned (8x10 inches).
Thanks,
Jonathan
On Tue, 9 May 2017 22:46:08 -0500
Jim Brain via cctalk wrote:
> I am trying to reproduce a PCB
link: http://www.ebay.com/itm/272663229522
Looks NOS, definitely never had anything soldered in the prototype area.
Thanks,
Jonathan
Just purchased a Solid State Music IO-8, apparently the manual is not available
online, and isn't listed in Herb's documentation collection. Anyone have it?
Looks like it's eight Intel 8251A serial ports.
Thanks,
Jonathan
> Is the IM6100/6120 still easy to find? I'dve thought that the supply
> was exhausted by now.
One of my *US* parts supplier apparently has qty 500 in stock for the IM6100s!
With the failure rate I've been seeing, figure at least 350 of them are viable,
maybe more. I've also had a bunch come ou
Finished building a prototype mezzanine board and testing with the IM6100
(PDP-8 on a chip) in the 560Z board today. Full writeup:
http://www.glitchwrks.com/2017/05/03/gw-osi-ram1-universal-ram
There are a couple of tweaks required, but I should be doing a first production
run of boards before
I keep meaning to stop by the guy's shop in MD and check out some of his DEC
stuff. From what I can tell, this isn't TEMPEST shielding, but RF shielding for
e.g. lab situations that require a low RF noise floor. It's probably
effectively the same as TEMPEST in practice, but seems to lack the gov
> The CP-2 line seems to have the right dimensions for DEC FLIP CHIP
> modules (2.43" wide, ~2" rivet hole spacing) and they have them in
> natural nylon, which might be dyable, white, and black.
>
> They are stocked by Digikey and Mouser for under $1 each.
Good stuff! Now I know what to use when
> It's one of these:
> http://www.grommetmachinery.com/stimpson-479-machine.html
Glad to hear it was saved from the scrap heap! A very cool machine, reminds me
of the manual punch we had to go along with our trip punch at a previous job.
> Stu Phillips, a friend of ours did the insertion of meta
I'm sure most of you DEC hackers have replaced a broken DEC handle or put
handles on a protoboard, and did what I've done in the past: use 4-40 screws
and nuts, or pop rivets. Well, I finally came across the right tool for the
job, an Indestro tubular rivet set! I cut the head off of a rivet on
> I'd just vacuum the card slots and wiring side with a shop
> vac with a crevice tool. I really would not get it wet. If
> you do this, vacuum all the water off and then dry in an
> oven at 100F or so for a day. You can clean the card edge
> fingers with an alcohol-soaked paper towel.
Yeah
> Whats the big deal with that? Its no more significant than a Compupro
> chassis or a Integrand box in the S100 realm.
I just like the size and configuration. I've been looking for one for a while,
it seems they were sort of common at one point. They were whitelabeled by Bell
& Howell (educat
All,
I'm on the virge of making a deal with vintagecomputermuseum on eBay over his
BYT-8 he's had up for years. It's still overpriced but I can probably sell the
boards out of it and make it a reasonable purchase. I already have a board set
so really I just need the empty chassis.
Before I com
> Certainly looks like MMJ to me. that was what I searched for as well.
If they're MMJ, I'd be interested in wall plates. I've got a few systems that
use it, plus I recently picked up a DECHub 90, including two terminal server
modules, which of course use MMJ.
Thanks,
Jonathan
> Any downsides to resettable polyfuses?
If you hit them hard enough, they'll sometimes permanently open, which is
desirable anyway but does require rework. I don't remember how they stack up
speed-wise, I'm sure it's in the datasheets.
Thanks,
Jonathan
> Likely a J11 power Q or Unibus CPU of late vintage.
Looks similar to a Mentec KDJ11-B workalike, I don't remember their
designation. Onboard RAM and DLV11-J from what I remember...
Thanks,
Jonathan
> Then it's a regional thing.
"Scrounge up," or to "scrounge around," is certainly commonly used to mean,
"find something in a pile of mess" in the southeastern US. Mostly equivalent to
"scare up."
Thanks,
Jonathan
> I don't know of MOS memory appearing in 11/20s as built by DEC, but there's
> no reason against it. It's just Unibus memory. It wouldn't have to be 4k
> either; if you had a 32kW memory card that should work just fine.
Indeed, Unibus is Unibus, except when it's MUD :)
Thanks,
Jonathan
Bill,
I'd be interested in one compatible with Sun 5 mice -- right now I use a
printed paper mousepad when I get out my Sun boxen. If no one else is
interested, I'd like one or two of them, and if they're otherwise going in the
trash, I know a few people I could give them to.
Does $5 each + sh
> Are dectape II tapes expensive?
TU58? They're hard to come by, but the good news is you can *emulate* them with
a PC and a serial port (or USB adapter). That's how I run XXDP on most of my
systems, and pretty much all of the systems I check out for people. You've got
a DLV11-J in there so you
Looking for any information and/or documentation on DATARAM DR-111 (assembly
61101) 16Kx16 core memory boards for the Unibus. I've got four in unknown
condition, one with a clearly destroyed 8T37.
I have a large format scanner with ADF and can digitize print sets if necessary.
Thanks,
Jonathan
> Ditto for one of the people here who said they'd sent the person an email
Whoops, ended up in the spam folder! No, I haven't heard back either. I sent a
follow-up and CCed the second address in his email. Provided my office phone
number, no reply or calls.
Thanks,
Jonathan
> > I'm on the other side of the country or I'd be all over this. Someone
> > please rescue this equipment. The thought of it going to the scrappers is,
> > well, brutal. Aren't PDP-11/60s kind of a rare beast?
> >
> > - Earl
> >
>
> yes, yes they are. ug.
I've contacted Greg, haven't heard back
IT LIVES!
I spent most of today hacking on the 560Z board. I got the 12-bit porthole
going first, took a bit as the manual doesn't tell you that you need IC CC
installed if you want to be able to write to the 4K exposed in the porthole.
After that, I plugged in a Z80 and tried to get it running
All,
Dave from osiweb.org and I have been working on reproducing some Ohio
Scientific boards, including the OSI 560Z "processor lab." The 560Z is probably
most well-known for allowing the user to run PDP-8/E code on an OSI using an
Intersil IM-6100 PDP-8 compatible CPU.
I'm getting parts kits
Hello all! I've tried to sign up for cctalk several times over the years, and
never had a successful registration. Seems this time worked.
I'm Jonathan, glitch on some other lists and forums, I'm the one responsible
for glitchwrks.com. I hack on old computers, pre-PC stuff, mostly S-100, PDP-11
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