On Mon, Oct 12, 2015 at 2:53 PM, Jules Richardson
wrote:
> Afternoon all,
>
> This may be forgotten knowledge - or perhaps more likely, something that was
> never known in the first place - but are there any typical failure modes of
> ST506/412-type drives (beyond the obvious mechanical damage bet
On Mon, Oct 12, 2015 at 11:32 PM, Nigel Williams
wrote:
> Has anyone ever seen one? I had an idea it used a silvered-paper and
> burned it off? or am I mis-remembering.
I used one in the early 1980s but I never had to repair it. It was,
as Tony and others have mentioned, electrolytic, not therma
On Tue, Oct 13, 2015 at 11:25 AM, Paul Koning wrote:
> There are all sorts of oddball printing technologies from back then. I
> remember
> one (from a lab instrument, not a printer or terminal) that used
> aluminum-coated
> paper, but the coating was on the back of the paper. The writing was d
On Tue, Oct 13, 2015 at 11:52 AM, tony duell wrote:
>> The only other terminal I worked
>> with that could do that was a Tektronix storage scope terminal (4010
>> or 4014, IIRC)
> IIRC the image was developed by heating the paper. I don't remember any
> liquids involved, but it's been a long time
On Tue, Oct 13, 2015 at 2:13 PM, Henk Gooijen wrote:
> I'd love to get one complete RK11-C ... anybody? :-)
I have an RK11-C but it did not come with a panel. Also, I've never
attempted to fire it up, so I'm sure it needs a round of
cleaning/deoxit and to be sleuthed for defective ICs.
-ethan
On Tue, Oct 13, 2015 at 4:07 PM, Henk Gooijen wrote:
> On Tue, Oct 13, 2015 at 2:13 PM, Henk Gooijen
> wrote:
>> I'd love to get one complete RK11-C ... anybody? :-)
>
> I have an RK11-C but it did not come with a panel.
>
> Now you know where you can leave it behind for a good old retirement :
On Wed, Oct 14, 2015 at 12:04 AM, Paul Anderson wrote:
> I have two backplanes, some boards somewhere ,but no panels, at least yet.
> Also a Diablo 30 or 31.
I had a Diablo 30 but I lost it in a flood 25 years ago. :-(
-ethan
On Wed, Oct 14, 2015 at 7:27 PM, Jason T wrote:
> A man in a black suit and skinny tie came by and asked that we not
> forget the Midrange (System/3, System/3x, AS/400...)
Carl the Technician dropped by. It's all hooked up.
http://www.marrick.com/IT_Lab.html
-ethan
On Mon, Oct 19, 2015 at 3:42 AM, Pontus Pihlgren wrote:
> Interesting. I thought Tthe DECserver 550 was merely the big brother in
> the terminal server line. But it looks like it is essentially a
> PDP-11/53 with 1.5MW of ram, you need new boot roms though. Pretty nice.
Yep. It's essentially an
On Mon, Oct 19, 2015 at 2:51 PM, Diane Bruce wrote:
> There was a hack for PDP11 Unix which added RT-11 compatibility syscalls
> to the kernel. (UofT Spencer) Thus games compiled for RT-11 would
> run on PDP-11 and VAX-11 (in PDP-11 compatilibty mode) Unix.
Ooh... I'd love to see that. I've fidd
On Tue, Oct 20, 2015 at 11:09 AM, Liam Proven wrote:
> Just learned of this via a tweet from a former colleague:
>
> The KIM Uno is a small "open-source hardware" project to build a
> replica of the classic 1976 KIM-1 computer...
I've seen it (I was next to Oscar Vermeulen at VCFe and VCFmw this
On Thu, Oct 22, 2015 at 8:13 AM, wrote:
> I've almost finished replicating the iconic Eames PSCC-4...
> ... A real PSCC-4 is > $700 USD on eBay
Earlier this year, a local small village upgraded their town hall
auditorium seating and recouped thousands of dollars selling the chair
shells on eBay.
On Fri, Oct 23, 2015 at 9:19 AM, Jay West wrote:
> Dave wrote...
> --
> I think that the switches can be found, but they might be expensive.
Any of these C&K-type switches are likely to sell for $4-$6 each as
new (I've gotten fistfuls of similar ones at Hamfests for $0.75 or
less, but it's ve
On Fri, Oct 23, 2015 at 7:49 AM, Noel Chiappa wrote:
> We have plenty of the original bezels, from which it would be easy to cast
> molds
> (the same part is used on the 11/45 and 11/70, unlike the rest of the front
> console).
Casting is one option. Another is CNC out of dense PVC foam.
> The
On Fri, Oct 23, 2015 at 5:26 AM, Alexandre Souza
wrote:
>>> But a 11/70 replica needs two physical 'cosmetic elements': proper
>>> switches, and the white bezel/frame.
>>> The switches *seem* to be feasible to
>>> produce cheaply (I will know in a month with PDP-8/I switches...).
I had a sample
On Fri, Oct 23, 2015 at 11:17 AM, Noel Chiappa wrote:
> > Alas, it's DPDT, not SPST.
>
> Ooops; the ones in the PDP-11 front panels (/05, /45, /70 and almost
> certainly the /40 too) are SPDT, not SPST
Yes. The footprint for the existing front panel PCBs are SPDT.
> I looked at the data she
On Fri, Oct 23, 2015 at 1:22 PM, Noel Chiappa wrote:
> > OK, I've cracked the part number code. The things we are looking for
> are:
> > 7101J50 CxE
> > 7108J50 CxE
> > ...
> > the C+K Web site showed two places (Electro-Sonic and
> > Online-Components) stocking 7101J5
On Fri, Oct 23, 2015 at 1:43 PM, Noel Chiappa wrote:
> > From: Chuck Guzis
>
> > I do miss the web-less Internet in some respects. People were more
> > polite back then--at least in their written communication.
>
> I snorted and started coughing when I read that! :-) Usenet had massive
On Fri, Oct 23, 2015 at 3:15 PM, Jay West wrote:
> I should also add if people are talking about reproducing DEC switch
> handles (the plastic covers)... I would love to get spares for my DG gear so
> whatever process works for the dec ones may be helpful there.
Do the DG handles have the sam
On Fri, Oct 23, 2015 at 3:42 PM, ben wrote:
> Bring in the Gorillas. :)
> Other than bootstrapping, switches tend to sit idle.
Yeah... For my switchless 11/70 PCB, I'm happy to buy $5 switches, but
if I can't find them that cheaply, I'm not worried about a replacement
method of attachment that mi
On Fri, Oct 23, 2015 at 3:55 PM, Jay West wrote:
> Ethan wrote...
>> Do the DG handles have the same problems as DEC switch handles?
>> (fragile pivots that break off)
>
> Ethan - Yes. They have the exact same "pins" on each side of the plastic that
> break off pretty easily
Right/
> I believe
On Fri, 23 Oct 2015, Bill Sudbrink wrote:
> Fred Cisin wrote:
>>
>> While I won't try to claim that the FIRST or SECOND
>> emails were flames, I'm inclined to think that they
>> started early. 'course in our day, we were much more
>> polite in how we flamed
>
>
> Emacs? You _MUST_ be kidding.
I'
On Mon, Oct 26, 2015 at 9:44 AM, rod wrote:
> New panels in design stage for the 11/40 up to 11/70.
> Scans, Photos and "I want one" for the above to me please.
I should have some scans of a real 11/70 plexi available to send soon.
-ethan
On Mon, Oct 26, 2015 at 11:05 PM, rod wrote:
> Hi Guys
> I need to get some comments on the following.
>
> 1. Would a matt finish be better than the current glossy one?
Hard to say, but generally, I think a closer match to the original is
better. Is there a reason you want to conside
On Tue, Oct 27, 2015 at 3:22 PM, Jarratt RMA
wrote:
>> Of course FRAGILE means something...FRAGILE (pronounced ‘Fra-gee-lee') is
>> Italian for “major award”. :)
>
> I suspect I am missing a joke here, but "fragile" in Italian has exactly the
> same meaning as "fragile" in English. "Major awar
On Thu, Oct 29, 2015 at 12:52 PM, Ben Sinclair wrote:
> Thanks! I did find someone who has the bc80m cable available, which I
> believe is a ribbon type of connector with a ground strap on one end,
> then a round cable to the berg connector for the back of the RL02. I
> think it's the cable pictur
On Thu, Oct 29, 2015 at 1:37 PM, Ben Sinclair wrote:
> I only have one RL02, so I think that cable should work. I ordered it anyway!
That cable (BC80M) will work even if you get a second drive. No
matter how the first drive is attached to the controller, to add a
drive, you remove the terminator
On Thu, Oct 29, 2015 at 2:52 PM, Glen Slick wrote:
> In case anyone happens to be looking for the cab kit, conflansrd / JT
> Computer has had one listed on eBay for a while:
>
> http://www.ebay.com/itm/151628333033
> CK-RLV1A-KA 15' CABLE RLV12 M8061 CABKIT FOR BA23 (USED)
That's not the cab kit
On Thu, Nov 5, 2015 at 7:03 PM, Brent Hilpert wrote:
> On 2015-Nov-05, at 10:59 AM, John Ball wrote:
>> I've been trying for the past week to verify that telephony on my teletype
>> machine (model 33) is functioning properly but the biggest hurdle I am
>> running into is I have nothing to easily d
On Tue, Nov 17, 2015 at 11:39 AM, Paul Koning wrote:
>
>> On Nov 17, 2015, at 8:41 AM, Kelly Leavitt wrote:
>>
>> How about:
>>
>> http://buffalo.craigslist.org/sys/5318182022.html
>
> Weird! I wonder if it's a Heathkit (H-11) in a homemade enclosure.
The H-11 has a Heath backplane PCB and non-
On Tue, Dec 1, 2015 at 11:55 AM, Paul Koning wrote:
> I'm not sure I understand the question correctly. That article clearly
> points out the 20 mA wires, and presumably that's where your ASR33 is
> connected. The VT50 comes (according to the peripherals handbook) with a
> standard 20 mA inte
On Tue, Dec 1, 2015 at 3:37 PM, Mattis Lind wrote:
> ... should be passive...
> The same goes for the VT1XX option on
> the VT100 which had two switches which one could set.
I have a couple of the VT1XX 20mA options, if anyone is looking. New in Box.
-ethan
On Wed, Dec 2, 2015 at 7:40 AM, Rod Smallwood
wrote:
> I have a TU-58 and yes it had gooey drive wheels.
> Now it no longer has that problem but I have black and gooey fingers.!!!
Yep.
> I know this issue has been addressed before.
Yep.
> So I think somebody must know where I can get the right
On Thu, Dec 3, 2015 at 1:05 PM, Ali wrote:
> So I got my hands on an HP 88780 1/2" Tape Drive...
>
> The bad news:
>
> Some of the front panel buttons are not working. Running test 72 shows
> failure in the unload/rewind and online buttons. Luckily it seems to be a
> mechanical problem. If I short
On Tue, Dec 8, 2015 at 11:02 AM, Paul Koning wrote:
> One detail on "it doesn't care what the tape is": RSTS kits on 1/2 inch tape
> come
> in 800 and 1600 bpi versions. They have different boot blocks, each of them
> designed to work with all tape drives/controllers supported on RSTS that
> sup
On Thu, Dec 10, 2015 at 4:35 PM, Mark Wickens wrote:
> I'm tempted to reply using ALLIN1 email just to give you all an idea how
> really irritating some email clients can be!
So glad I never had to use it. We had VMS MAIL and we liked it !
> It was all the rage in the 80's however don't you kno
On Fri, Dec 11, 2015 at 8:50 PM, Jacob Ritorto wrote:
> Exciting stuff for a Friday night, right?
It is!
> https://www.instagram.com/p/_K-zHhHvLn78Qu5ijWqMf-HBem1LKMLaEdI1c0/
Nice!
> xp0a: hard error bn cs2=1100 er1=0
>
> on every single block when I try to mkfs /dev/xp0a 4800
I can't h
On Sun, Dec 13, 2015 at 10:22 AM, tony duell wrote:
>>
>> I've done the obvious, reseating socketed ICs, checking the +12V and +5
>> rails, and checking the on-board CPU reset line. Does anyone have any tips
>> for what's best to try next?
>
> Didn't at least some versions use 2114 RAM chips? If s
On Mon, Dec 14, 2015 at 2:05 PM, Mike wrote:
>> On Dec 14, 2015, at 12:34 PM, Chuck Guzis wrote:
>>
>> The subject brought up the thought of how many display-less computers we
>> encounter every day without giving it a thought. I think that probably 100
>> would be a safe bet.
>> Looking over
On Mon, Dec 14, 2015 at 2:42 PM, Robert Jarratt
wrote:
> I have had a few replies now. So it seems that it wasn't that unusual to
> connect up these big drives to a MicroVAX II.
In the late 1980s, your choices for uVAXII disk were essentially,
5.25" DEC RD drives, which topped out at 154MB, or ex
On Mon, Dec 14, 2015 at 6:32 PM, dwight wrote:
> Do remember when ordering 2114's that these are all NOS units
> and just about as likely to be bad as the ones in your unit.
Too true. NOS doesn't mean it's working.
> I don't know of any surplus place that has the ability to test them.
Or the i
On Mon, Dec 14, 2015 at 9:15 PM, Fred Cisin wrote:
> On Tue, 15 Dec 2015, Mike Ross wrote:
>>
>> I thought Centronics dated back to early 1970s - not always in the
>> standard 'modern' form, but in general principles with same signaling
>> and strobing of data.
>
> I got in late. My first encount
On Thu, Dec 17, 2015 at 12:17 PM, Rod Smallwood
wrote:
> I had always wondered about what bezels are made of.
> The one off my 8/e seems too heavy for aluminium.
> It must be diecast something or other.
Zamac?
-ethan
On Tue, Dec 22, 2015 at 1:04 AM, Cindy Croxton wrote:
>> Has any of you took one of them old choose your own adventurer books and
>> coded it into a text RPG in basic?
>>
>> 1. Clear the screen for the next page!
>>
> Clear Screen was CLS, IIRC.
For TRS-80 BASIC, I think. For Commodore BASIC, i
On Mon, Dec 28, 2015 at 4:45 AM, Rod Smallwood
wrote:
> Hi
> Anybody who has not seen this film (The KGB, the Computer, and Me)
> its worth a look. 1980's DEC systems everywhere, LSI terminals, HP kit,
> Tape drives in action and apart from the Mac no Windows anywhere.
>
> I think LBL must have bo
On Tue, Jan 5, 2016 at 4:24 PM, Lyle Bickley wrote:
> I'm somewhat familiar with the Roddenberry floppies. They were not in a
> standard format - so it was not just a matter of reading the floppies,
> but developing software to read the specially formatted and encoded
> floppies (understanding dir
On Tue, Jan 5, 2016 at 4:27 PM, Chuck Guzis wrote:
>> Can you enlighten us as to what sort of system/disk format it was?
>
> IIRC, it was several, mostly Japanese. I'd have to go back to my notes from
> some time back.
The picture of the one remaining whitebox with the two full-height
floppy dri
On Tue, Jan 5, 2016 at 4:58 PM, Rich Alderson
wrote:
> From: Jason Scott
> Sent: Tuesday, January 05, 2016 1:53 PM
>> As someone who's dealt with Harlan Ellison on multiple fronts. I will tell
>> you the chances he will burn those drawers is 50-50.
>
> Though I've never met him, I have friends who
On Wed, Jan 6, 2016 at 9:14 PM, ben wrote:
jp2a --width=76 snoopy.jpg | lpr
cal 2016 | lpr
On Wed, Jan 6, 2016 at 9:14 PM, ben wrote:
> But where do you get the 2016 Line Printer Calender?
jp2a --width=76 snoopy.jpg | lpr
cal 2016 | lpr
-ethan
On Tue, Jan 26, 2016 at 5:46 PM, Guy Sotomayor wrote:
> I just received the first of the BC11A paddle boards (so that I can now
> create my own BC11A cables).
Cool!
> For those who’d like to know, I probably will not be making a production run
> of these boards unless I get a *lot* of interest
On Wed, Jan 27, 2016 at 10:06 AM, tony duell wrote:
> DEC (also?) made a board that brought the Unibus out on 3 40-way
> cahles.
I don't know that I've seen that exact one, but it sounds like
something they would have done.
> I have removed that from my 11/730 as I just want a single-cabinet sys
On Wed, Jan 27, 2016 at 1:31 PM, Guy Sotomayor wrote:
>> On Jan 27, 2016, at 7:48 AM, Ethan Dicks wrote:
>> I just did some pricing and 60-way cable is a touch pricey. Through
>> cable surplus vendors, I saw one quote of $1.33/ft...
>
> I just ran some numbers (Digik
On Wed, Jan 27, 2016 at 2:13 PM, Guy Sotomayor wrote:
>
>> On Jan 27, 2016, at 11:03 AM, Ethan Dicks wrote:
>>
>> If you do bare boards (no connectors), I'd probably be interested in
>> several sets.
>
> I offer parts kits as a convenience not as a requirem
On Thu, Jan 28, 2016 at 12:40 PM, Kelly Fergason wrote:
> The C64 had TI$. Its been a while... but you could do something like this:
>
> 10 TI$="00"
> insert lots of program...
> 100 if TI$="30" then print "30 seconds have passed! "
Using "equals" there can cause issues if somehow 31 sec
Hello, all,
I was just gifted with an IBM 3101-12 ASCII terminal that happens to
be missing the fuse and fuse holder. Unlike a lot of 1960s and 1970s
gear, it's not round. It's square. Is this a standard IBM thing from
the 70s/80s? Anyone know where I could get one? It seems to snap in
and pr
On Fri, Jan 29, 2016 at 2:39 AM, Tothwolf wrote:
> On Thu, 28 Jan 2016, Ethan Dicks wrote:
>
>> I was just gifted with an IBM 3101-12 ASCII terminal that happens to be
>> missing the fuse and fuse holder. Unlike a lot of 1960s and 1970s gear,
>> it's not round. It
On Fri, Jan 29, 2016 at 12:56 PM, Jon Elson wrote:
> On 01/28/2016 10:28 PM, Ethan Dicks wrote:
>> I was just gifted with an IBM 3101-12 ASCII terminal...
>
> I'd open up the case and see if you can find out who made the whole fuse
> holder assembly. Lots of outfits ma
On Fri, Jan 29, 2016 at 1:19 PM, Paul Berger wrote:
> On 2016-01-29 12:28 AM, Ethan Dicks wrote:
>> I was just gifted with an IBM 3101-12 ASCII terminal...
>
> I did a quick google search for 'ibm 3101' and among the hits was a manual
> on archive.org, www.bitsavers
On Fri, Jan 29, 2016 at 2:23 AM, Chuck Guzis wrote:
> On 01/28/2016 08:28 PM, Ethan Dicks wrote:
>
>>
>> I was just gifted with an IBM 3101-12 ASCII terminal that happens to
>> be missing the fuse and fuse holder. Unlike a lot of 1960s and 1970s
>> gear
On Fri, Jan 29, 2016 at 5:50 PM, Charles Anthony
wrote:
> This is the Multics Release 12 C compiler terminfo entry for the 3101:
>
> # @(#)ibm.ti 1.3 (1.10 2/22/83)
>
> ibm|ibm3101|3101|i3101|IBM 3101-10,
> cr=^M, cud1=^J, ind=^J, bel=^G, tbc=\EH, hts=\E0, am,
On Fri, Feb 5, 2016 at 3:26 PM, Richard Cini wrote:
> I’m looking for the assembly manual(s) for the main H-11 unit. I
> might be getting an H11 and I think it only has two boards in it (maybe the
> LSI-11 and 4k MEM boards??) but it doesn’t come with any manuals.
I'd also like to get a
On Fri, Feb 5, 2016 at 5:21 PM, Evan Koblentz wrote:
> Mark your calendars: Vintage Computer Festival West is back! August 6-7 this
> year at the Computer History Museum (Mountain View, Calif., just like
> before).
Send pictures. I'm already double booked that weekend this year) and
I'd love to
On Sun, Feb 7, 2016 at 11:57 PM, Richard Loken wrote:
> First week on the job in March 1980, my new boss brought me two pdp11/04s
> and a box of memeory chips. He to told me to double the memory in
> the two computers by populating all the empty holes on the memory boards.
I had a boss in 1987 t
On Mon, Feb 8, 2016 at 3:30 PM, Guy Sotomayor wrote:
>> On 2/8/16 10:09 AM, Guy Sotomayor wrote:
>>> So, things are moving forward. I also wanted to get folk's opinion on
>>> the need to actually produce
>>> an SPC form factor board. In other words (and sort of in line with how
>>> peripherals w
On Mon, Feb 8, 2016 at 1:33 PM, tony duell wrote:
>> > I heard that when Bristol University physics department got its first VAX
>> > (an 11/750,
>> > somewhat before my time), it was cheaper to buy 256K memory boards full of
>> > 16K RAM
>> > chips, clip them out, clean out the holes and solder
On Mon, Feb 8, 2016 at 4:13 PM, Guy Sotomayor wrote:
> Anything optional will be in sockets. I’ll be putting the UNIBUS transceivers
> in sockets because I can’t afford the overage that I’d need to provide to the
> board house for assembly.
I'm starting to get sorry I sold off my surplus NS8641s
On Mon, Feb 8, 2016 at 9:48 PM, Jon Elson wrote:
> On 02/08/2016 03:23 PM, Ethan Dicks wrote:
>>
>> I don't know if you could use the 256K boards (populated with 4116s) in
>> the 11/730 due to the tri-voltage 4116s, but even if they worked, you
>> wouldn't wan
On Mon, Feb 8, 2016 at 11:11 PM, william degnan wrote:
> I ran my VAX 4000-200 all day today.
Nice.
> I have never worked with an older
I happened to get a lot of opportunity in the 80s to work with VAXen,
then Alphas in the 90s and a little beyond (I haven't been paid to run
VMS since about 20
On Tue, Feb 9, 2016 at 7:55 AM, tony duell wrote:
>> I don't know if
>> you could use the 256K boards (populated with 4116s) in the 11/730 due
>
> I am pretty sure (havng read and re-read the printset, I am restroring
> an 11/730 at the moment) that you can't use 256K boards in that machine.
> The
On Mon, Feb 8, 2016 at 3:31 PM, Ian S. King wrote:
> On Mon, Feb 8, 2016 at 12:23 PM, Noel Chiappa
> wrote:
>> If you have an actual 11/20, you should be ecstatic! ;-)
> Yes, its faceplate reads 'PDP-11', not 'PDP-11/20'.
I am half sad. My 11/20 faceplate reads 11/20 (I'm only half-sad
because
On Thu, Feb 11, 2016 at 9:56 AM, Mark Wickens wrote:
> It's good to hear that the VAX was a cost-effective solution - there are
> too many stories about how expensive DEC gear was, but I imagine they
> primarily came after PCs started dropping in price.
>
> On 9 February
On Thu, Feb 11, 2016 at 12:11 PM, William Donzelli wrote:
>> DEC VT100s
>> were around $1,800 in the early-1980s,
>
> VT100s (and terminals in general) often were used as bargaining chips
> to sweeten deals, so the price was quite "flexible".
I have no doubts that was true when selling systems, b
On Fri, Feb 12, 2016 at 3:53 PM, Jos Dreesen wrote:
>> Impressive collection of great machines!
>
>> but never found the "4 high" racks. They are called H950 ???
>
> No labels to be found on the rack..
I have one of those racks (with the maroon PDP-11 top plate; it came
to me with a PDP-11/34 and
On Fri, Feb 12, 2016 at 4:03 PM, Ethan Dicks wrote:
> On Fri, Feb 12, 2016 at 3:53 PM, Jos Dreesen wrote:
>>> Impressive collection of great machines!
>>
>>> but never found the "4 high" racks. They are called H950 ???
>>
>> No labels to be
On Fri, Jan 29, 2016 at 5:50 PM, Charles Anthony
wrote:
> This is the Multics Release 12 C compiler terminfo entry for the 3101:
>
> # @(#)ibm.ti 1.3 (1.10 2/22/83)
>
> ibm|ibm3101|3101|i3101|IBM 3101-10,
> cr=^M, cud1=^J, ind=^J, bel=^G, tbc=\EH, hts=\E0, am,
On Mon, Feb 22, 2016 at 10:28 AM, Mark J. Blair wrote:
> When I was debugging the connection between my VAX and tu58em on my Mac, I
> ended up buying an old serial protocol analyzer. Notably, I specifically
> avoided one with the same type of tape drive; I got one with a nice, reliable
> 3.5" f
On Mon, Feb 22, 2016 at 10:54 AM, Mark J. Blair wrote:
> The bigger picture:
>
> https://twitter.com/nf6x/status/701796809413304320
Nice!
We had a couple 4951s set up at all times, mostly for sync debugging
of our own products, but occasionally, we stuck them between two
machines running Kermit
On Tue, Feb 23, 2016 at 12:38 AM, Richard Loken wrote:
> On Mon, 22 Feb 2016, Mouse wrote:
>
>>> Computer games require all you can give them [...]
>>
>> Only if your idea of "games" is "slick-looking realtime 3D-rendering
>> games". There are lots of games that work perfectly well on 3100-class
On Tue, Feb 23, 2016 at 11:29 AM, william degnan wrote:
> On Tue, Feb 23, 2016 at 11:23 AM, Ethan Dicks wrote:
>> ... 80x24 text games that can be played on an ANSI (VT100)
>> terminal and especially non-ANSI (VT52 or that IBM 3101) on
>> Unix/Linux, VMS, and RT-11.
>
On Tue, Feb 23, 2016 at 1:41 PM, Rich Alderson
wrote:
> From: Ethan Dicks
> Sent: Tuesday, February 23, 2016 8:23 AM
>
>> Zork (and anything else on a Zmachine)
>
> Ethan,
>
> You should know better.
Of course I do.
> Zork originated on a PDP-10 running ITS.
On Tue, Mar 29, 2016 at 8:10 AM, Noel Chiappa wrote:
> Luckily, having that cable in backwards doesn't harm anything...
DEC was really good about things not being damaged from backwards
cables. Much better than most vendors.
I'm sure someone can come up with a horror story, but mostly, it's
goo
On Tue, Mar 29, 2016 at 8:25 PM, Paul Koning wrote:
>> On Mar 29, 2016, at 8:18 PM, Guy Sotomayor wrote:
>> ...autorouter on Eagle 7.5, so I did this all by “hand”
>> (at just under 2000 wires it took a while).
>
> I can imagine. Hand-routing tends to produce much better results;
Yep.
> the au
On Mon, May 25, 2015 at 8:07 PM, Michael Thompson
wrote:
> Today we pulled all of the M113 flip-chips and tested them because SN7474
> and SN7400 ICs seem to be a problem in these early DEC systems.
I have found from debugging a PDP-8/i and multiple PDP-8/L systems
that 80% of my failed ICs are S
On Wed, May 27, 2015 at 7:09 PM, Johnny Billquist wrote:
>> http://www3.telus.net/~bhilpert/tmp/deccartridge.jpg
Yep. Looks like RC25 carts
> RC25 could have been found in both PDP-11 and VAXen. I think you only had a
> Qbus controller for it, though. But it's MSCP.
There's a Unibus co
On Mon, Jun 1, 2015 at 1:09 PM, Robert Armstrong wrote:
> If you actually get an RC-25 drive working, I'd love to hear about it. I
> have three RC25s (one actually in my 11/725 and two spares) and none of them
> work. They were never very reliable drives, even when brand new, and are
> possibl
thing wrong with it - that's about
the going price from what I've seen, but it's not Unibus.
-ethan
> On Fri, Jun 5, 2015 at 5:31 PM, Toby Thain wrote:
>> On 2015-06-04 8:49 PM, Ethan Dicks wrote:
>>
>>> ... Unibus SCSI, OTOH, is
>>> not common, but a
On Fri, Jun 5, 2015 at 9:21 PM, Connor Krukosky
wrote:
> Its in better condition than the one I got, but I got mine for only 9
> dollars!!
> http://www.ebay.com/itm/IBM-26-Keypunch-Punch-Card-/141603779673
Nicely done. I have an 026 that needs to be completely cleaned, lubed
and inspected. It w
On Sun, Jun 7, 2015 at 9:44 PM, Mike Ross wrote:
> That should be trivial. I've never laid hands on an RC25, but there
> must be a microswitch that detects when a cartridge is installed, and
> is accessible for bodging...?
The problem is if you would do that, the heads on the empty cartridge
woul
On Fri, Jun 12, 2015 at 2:06 AM, Mark J. Blair wrote:
> Using a version 58 console tape image provided to me by one list member, and
> massaged into a usable state by another list member, I just booted OpenVMS
> 7.3 off the R80 drive on my VAX-11/730 for the first time since buying the
> machin
On Sun, Jun 14, 2015 at 3:47 PM, Chris Osborn wrote:
> ,,, Altos ACS 8000-15A... nothing spits out on the Console 1 RS232 port. From
> what I understand the serial ports are wired DTE (which seems odd since you
> use it with terminals) and so I’m using a null modem adapter. Although with
> the nul
On Tue, Jun 16, 2015 at 12:20 AM, tony duell wrote:
> [My 11/730]
>
>> Sorry to hear that it's been decabled. Take your time to route those cables
>> through the bottom pan properly,
>
> Yes, it's going to be a lot of work to get it back together.
>
> I think I am going to start (when I have got
On Sat, Jun 20, 2015 at 10:58 AM, tony duell wrote:
>> I am looking for any information on a National Semiconductor RAM board that
>> I think goes in
>> a VAX 11/730.
> Pressing the
> button turns off the yellow LED and completely disables the board. Quite why
> you'd want to do this I do
> no
On Tue, Jun 23, 2015 at 10:54 AM, Jörg Hoppe wrote:
> Does anybody has a FPMS with schematics for the M705 modul? Perhaps as part
> of some PDP-8 doc?
The M705 is the standard part in the PC8L (along with the M710 and M715).
Vince Slyngstad has some modern schematics here:
http://svn.so-much-st
Hi, All,
I just picked up a couple of AT&T terminals, a 730+ and a 5620 "Blit"
terminal. The 730+ powers on, passes self-test and probably would
work great if I had a keyboard for it. The 5620 lights the CRT but
doesn't appear to work outside of presenting a huge green dot the size
of the raster
On Fri, Jun 26, 2015 at 9:59 PM, Ken Seefried wrote:
> From: Ethan Dicks
>>I just picked up a couple of AT&T terminals, a 730+ and a 5620 "Blit"
>>terminal.
>
> Some people have *all* the luck.
I used to work at Bell Labs/Lucent/Western Electric in Columbus.
S
On Tue, Jun 30, 2015 at 9:33 PM, Fred Cisin wrote:
> If you have some storage, then you can lose a microcomputer.
Oh, yeah.
> If you lose a minicomputer, then you have a lot of storage.
I recently found an 11/730 I thought I had to get rid of in 1994...
(turns out I got rid of a spare we bough
On Wed, Jul 8, 2015 at 1:44 PM, Sean Caron wrote:
> I love those server hoists... the data center that I work in at U-M has two
> of them, however they are made by Genie and they are a hand-crank type, no
> automatic lift. They easily turn a job that could require two, three or
> even four people
On Wed, Jul 15, 2015 at 8:39 PM, Ali wrote:
>> Surely any competent locksmith could turn out one of these for less
>> money, complete with the stamp...
The key is "easy" (from the right place). The stamp is a little
harder these days, since not everyone has the stamps.
> Maybe on the DEC keys b
On Wed, Jul 15, 2015 at 9:48 PM, Chuck Guzis wrote:
> On 07/15/2015 06:37 PM, Mark J. Blair wrote:
>
>> Heck, I could crank out at least 40 of them tonight...
>> I guess I'll just need to pass on that extra $4000
>> of income. :D
>
> Just think of what they'd go for if they were *gold-plated*...
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