Re: Manual for Documation TM200 punched card reader

On Sat, Sep 22, 2018 at 10:34 AM, Guy Dunphy via cctalk wrote: > By coincidence, today I started evaluation of a punched/optical card reader. > Model TM200, made by Documation Inc. > > Pics here: http://everist.org/pics/TM200/ > > The immediately obvious problems: > * Mains input connector is one

Re: VT100's

On Thu, Sep 6, 2018 at 12:16 PM, Chuck Guzis via cctalk wrote: > We didn't have a single VT100 in the house when we were running a VAX. > > C Itoh, CIT-220s in our case. Nice terminals with 14" screens. We had multiple VT100s and VT101s and VT102s but at some point in the company's growth

Re: VT100's

On Thu, Sep 6, 2018 at 12:28 PM, Guy Sotomayor Jr via cctalk wrote: > My biggest complaint with DEC terminals (and clones) that came after the VT100 > (such as the VT220/VT320/etc) is that the terminals are nice and small but the > keyboards are *huge* (almost twice the width of the terminal

What platform can run m68k COFF binaries?

Hi, All, I have a backup of some old code that I thought came from a Sun3 machine, and indeed, there _are_ binaries on there, in a directory 'sun' that _do_ run on a Sun3, verified under emulation with "tme". The part that puzzles me is the collection of object files and binaries in the

Re: Milwaukee Computers MC-1200

On Tue, Sep 4, 2018 at 10:00 AM, Al Kossow via cctalk wrote: > We have two in the CHM collection. This is the first time I've ever seen one > work. I was thinking it might be fun to try to get FORTH running on it. That sounds cool. > I may also mod mine so that it puts out proper RS-232 levels

Re: Milwaukee Computers MC-1200

On Tue, Sep 4, 2018 at 9:13 AM, John Foust via cctalk wrote: > At 09:58 AM 9/3/2018, Al Kossow via cctalk wrote: >>Ethan had asked me years ago to make copies of the software for this machine. >>It is pretty obscure, one full page add in Byte, and it sank without a trace. > Jon Auringer (of

Re: MicroVAX I

On Sun, Aug 12, 2018 at 11:36 PM, robertbeauchamp33--- via cctalk wrote: > My mother is moving and her spouse has a MicroVax I he bought new back in > 1984 for some crazy amount. I don’t see this model listed in your chart? Can > you tell me if there is any value to this machine? He also has

Re: Single-height Qbus grant continuity PCB

On Tue, Aug 14, 2018 at 3:04 PM, Noel Chiappa via cctalk wrote: > > From: Tony Duell > > > I have here a little square board (the same size as the older Unibus > > grant continuity card) with just 2 pairs of pins linked. ... Has anyone > > come across that one before? > > No,

Re: Pdp 11/34 System for sale in Riverside,ca

On Wed, Aug 1, 2018 at 12:29 PM, Josh Dersch via cctalk wrote: > On Wed, Aug 1, 2018 at 8:32 AM, Wayne S via cctalk > wrote: > >> http://www.ctonlineauctions.com/detail.asp?id=746466 >> >> From the pictures it looks to be a fairly complete system with Kennedy >> tape drive. >> Has a System

Re: ABLE, other non DEC boards.

On Wed, Jul 25, 2018 at 4:36 AM, Paul Anderson via cctalk wrote: > I had a nice talk with an old friend earlier today, and we talked about how > some companies were so proud of their products that they never put their > name on it. Sometimes a logo, sometimes only a part number. We put our name

Re: DEC power connectors (UNIBUS PDP-11s, mostly)

On Thu, Jul 26, 2018 at 2:02 PM, Noel Chiappa via cctalk wrote: > > From: Ethan Dicks > > > Min order 14 @ $0.75 each. > > Uh, no. I think they have a $25 minimum at checkout; try it. Ah, you meant min order total. I just saw that this specific part had a min order. Yeah... lots of

Re: DEC power connectors (UNIBUS PDP-11s, mostly)

On Thu, Jul 26, 2018 at 6:53 AM, Noel Chiappa via cctalk wrote: > > From: Fritz Mueller > > > If these are what you are talking about, I ordered up a bunch a couple > > years ago when I rebuilt the power harness for my 11/45, and can attest > > they are the right thing: > > Yeah,

Re: Thicknet/10base5 Test Segment: The Cable is In!

On Fri, Jun 29, 2018 at 1:17 PM, Pete Turnbull via cctalk wrote: > On 29/06/2018 14:31, Paul Koning via cctalk wrote: >> Yes, and the specified distance limit for RS232 is quite short, 50 >> feet or so. >> >> People have used RS232 over longer distances, of course, and gotten >> away with it. > >

Re: Thicknet/10base5 Test Segment: The Cable is In!

On Tue, Jun 26, 2018 at 3:07 PM, systems_glitch via cctalk wrote: > I've confirmed that I now have N connector intrusive taps! These have a N > female connector on each end, like the leftmost transceiver in this picture: > >

Re: Lots of old DEC stuff

On Fri, Jun 15, 2018 at 11:03 AM, Ed Sharpe via cctalk wrote: > quite a selection... We have a couple extra declabs like he has > listed at his url of > >

Re: RC25 (was Re: Modifying microcode)

On Tue, Jun 5, 2018 at 2:53 PM, Robert Armstrong wrote: > I too have heard that RC25s and PDP-11s were used in nuclear subs for some > kind of sonar thingie. I've no idea how that worked, except that maybe DEC > gave all the good drives to the Navy and the rest of us got the crappy ones.

Re: RC25 (was Re: Modifying microcode)

On Tue, Jun 5, 2018 at 1:19 PM, Noel Chiappa via cctalk wrote: > > From: Ethan Dicks > > > Mostly, what I need is affordable ($250 or less) Unibus storage with > > modern media > > There's this: > > http://www.retrocmp.com/projects/unibone I would totally buy this. I have some NOS

RC25 (was Re: Modifying microcode)

On Mon, Jun 4, 2018 at 5:13 PM, Paul Koning via cctalk wrote: >> On Jun 4, 2018, at 1:17 PM, Robert Armstrong via cctalk >> wrote: >> >> ... FWIW, I have a 725 complete and working. Well, except for the RC25, >> which never worked even when they were new. I had an 11/725 in the 80s and 90s

Re: Modifying microcode

On Fri, Jun 1, 2018 at 2:46 PM, Antonio Carlini via cctalk wrote: > the 78032 chip. The VAX-11/730 was chosen because it was "an entirely 'soft' > machine". > > (The VAX-11/725 is essentially the same hardware but in different > packaging). We used to purchase 11/725s for parts to keep our

Re: old DEC stuff

On Wed, May 30, 2018 at 12:52 PM, Jay West via cctalk wrote: > Dominique wrote: > $75 for one toggle switch ? $9,999.00 for a rusty PDP8L ? > > hem ... No > - > Mitch Miller is a really good guy, and very "collector friendly". > He still sells to a lot of business clients, and

Re: Old newsreader source code

On Thu, May 10, 2018 at 9:18 AM, geneb via cctalk wrote: > Rich, if you point a reader at nttp.olduse.net, you can start reading in > 1988 again. :) The most recent messages posted are from 05/10/88. The > messages that appear on the server are exactly 30 years behind the

Re: Old newsreader source code

On Thu, May 10, 2018 at 9:18 AM, geneb via cctalk wrote: > Rich, if you point a reader at nttp.olduse.net, you can start reading in > 1988 again. :) The most recent messages posted are from 05/10/88. The > messages that appear on the server are exactly 30 years behind the

Re: Old newsreader source code

On Tue, May 8, 2018 at 12:23 PM, Seth Morabito via cctalk wrote: > I'm experimenting with setting up UUCP and Usenet on a cluster of 3B2/400s, > and I've quickly discovered that while it's trivial to find old source code > for Usenet (B News and C News), it's virtually

Re: Old core memory system.

On Sat, May 5, 2018 at 1:23 PM, Pete Lancashire via cctalk wrote: > Core temp was a big issue even in commercial environments. You didn't see > it temp but you would see core [driver] current. Every DEC corestack I've seen at least has a thermistor to handle the normal

Re: old vintage stuff for pretty cheap

On Thu, May 3, 2018 at 2:18 PM, Jason T via cctalk wrote: > On Thu, May 3, 2018 at 12:48 PM, Electronics Plus via cctalk > wrote: >> https://www.acrosups.top/vintage-computing-c-29/ >> >> Don't pay attention to where it says Old Price. >> >> Click on

Re: Identifying bad RAM on Amiga 1000 WCS board

On Mon, Apr 30, 2018 at 12:08 PM, Ethan Dicks <ethan.di...@gmail.com> wrote: > On Mon, Apr 30, 2018 at 11:24 AM, Peter Corlett via cctalk > <cctalk@classiccmp.org> wrote: >> On Mon, Apr 30, 2018 at 10:29:13AM -0400, Ethan Dicks via cctalk wrote: >>> [...] The exac

Re: Identifying bad RAM on Amiga 1000 WCS board

On Mon, Apr 30, 2018 at 11:24 AM, Peter Corlett via cctalk <cctalk@classiccmp.org> wrote: > On Mon, Apr 30, 2018 at 10:29:13AM -0400, Ethan Dicks via cctalk wrote: >> [...] The exact value to write to which address is documented somewhere but I >> haven't done any digging

Re: Identifying bad RAM on Amiga 1000 WCS board

On Mon, Apr 30, 2018 at 10:07 AM, Geoffrey Oltmans <oltma...@gmail.com> wrote: > On Sat, Apr 28, 2018 at 6:34 PM, Ethan Dicks via cctalk > <cctalk@classiccmp.org> wrote: >> >> Hi, All, >> >> I've been doing component-level diagnosis of a bad Amiga 1000 W

Re: Identifying bad RAM on Amiga 1000 WCS board

On Sun, Apr 29, 2018 at 12:25 PM, Richard Sheppard via cctalk wrote: >> There are hand-drawn schematics floating around but they don't appear >> to match the production hardware > > There is a service manual - "Amiga Computer Model 1000 Preliminary Component > Level Repair

Identifying bad RAM on Amiga 1000 WCS board

Hi, All, I've been doing component-level diagnosis of a bad Amiga 1000 WCS board and since I was unable to find this information anywhere, I thought I'd post it to the list so that it's in the hands of more than one person. For an Amiga 1000 that starts up with a turquoise screen and never asks

Re: Digilog DLM III?

On Fri, Apr 20, 2018 at 11:21 PM, W2HX via cctalk wrote: > Hi friends. Looking for a user manual (or anything) for this data line > monitor. Here is a picture: > > http://w2hx.com/x/Digilog/Digilog-DLM-III.jpg I have one of those (rescued from Software Results Corp. 25

Re: RL Drive Terminators

On Fri, Apr 20, 2018 at 9:24 AM, Bill Gunshannon via cctalk wrote: > I see some company selling them on eBay for $122. Are they really worth > anything like that? I would hope they sell for less, but if they can get buyers then that's the current price. It's not like

Re: Speed now & then (Space and time?)

On Fri, Apr 13, 2018 at 7:19 PM, Johnny Eriksson via cctalk wrote: > Ethan Dicks wrote: > >> There are times when video instruction makes sense... >> ... Teaching programming? I don't want to watch 2 >> hours of someone editing text... g > > How

Re: Speed now & then (Space and time?)

On Wed, Apr 11, 2018 at 11:36 AM, Liam Proven via cctalk wrote: > On 29 March 2018 at 21:35, Fred Cisin via cctalk > wrote: >> >> MP4s mean that now, not only does it take MUCH longer to create the >> document, we can now waste MUCH more of the

SGI SN-921 dial box working! (was Re: Seeking software for SGI/Sun dial box)

On Sun, Apr 8, 2018 at 5:01 PM, Ethan Dicks wrote: > On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks wrote: >> SN-921 >> >> https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_front.jpg > >

Re: Seeking software for SGI/Sun dial box (was Re: IBM 6094-010 "Dials" protocol?)

On Sun, Apr 8, 2018 at 8:13 PM, Glen Slick wrote: > On Sun, Apr 8, 2018 at 4:56 PM, Ethan Dicks wrote: >> >> What I _think_ I'm seeing is the Python code sends a mode switch >> command to get the dial box to auto-send dial events, so I wonder if >>

Re: Seeking software for SGI/Sun dial box (was Re: IBM 6094-010 "Dials" protocol?)

On Sun, Apr 8, 2018 at 5:48 PM, Glen Slick <glen.sl...@gmail.com> wrote: > On Sun, Apr 8, 2018 at 2:01 PM, Ethan Dicks via cctalk > <cctalk@classiccmp.org> wrote: >> On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks <ethan.di...@gmail.com> wrote: >>> SN-921

Seeking software for SGI/Sun dial box (was Re: IBM 6094-010 "Dials" protocol?)

On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks wrote: > SN-921 > > https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_front.jpg > > DANAHER CONTROLS Dials DLS80-1022 > >

Re: WeirdStuff going out of business

>> On Apr 5, 2018, at 8:21 PM, Al Kossow via cctalk >> wrote: On Thu, Apr 5, 2018 at 8:31 PM, Paul Koning via cctalk wrote: >> http://www.vcfed.org/forum/showthread.php?63045-WeirdStuff-is-going-out-of-buisiness-( > > I get a message saying I don't

Re: WeirdStuff going out of business

On Thu, Apr 5, 2018 at 8:21 PM, Al Kossow via cctalk wrote: > Last Day is this Sunday > > http://www.vcfed.org/forum/showthread.php?63045-WeirdStuff-is-going-out-of-buisiness-( Bummer. I bought many things from them on my visits to the Bay Area in the 90s. I still have a

Re: RL01/RL02 emulator needed -- (was Many thanks to Glen's Vintage Computer Info)

On Thu, Apr 5, 2018 at 1:06 AM, Paul Anderson via cctalk wrote: > I'm sure DILOG and others companies made them, but I haven't found my DILOG > book yet. DQ614 emulates 1-4 RL02 drives on an ST506/ST412-interface drive (and FWIW, the DQ615 is an RK06/RK07 emulator).

DEC BA213 and BA213 S-boxes?

Hi, All, Watching some of the recent traffic about what newer Qbus boards will and won't work with 2.11BSD, I've remembered a thing I was once looking for. Back when I did DEC hardware for a living, we stopped buying new stuff after we got a MicroVAX-II. As such, I have plenty of LSI-11 to

Re: Speed now & then

On Thu, Mar 29, 2018 at 12:20 PM, Murray McCullough via cctalk wrote: > I’m not trying to date myself but have things truly sped up? In 1970’s > ... 300 baud modem; by early 80’s had ‘zoomed’ to 9600 baud. What hasn't changed is people. Back when we had 300 baud, we only

SGI SN-921 dial box (978-0804) (was Re: IBM 6094-010 "Dials" protocol?)

On Sun, Mar 25, 2018 at 6:09 PM, Ethan Dicks wrote: >> SN-921 (2.1mm barrel jack for +5V) >> >> https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_front.jpg > > http://yehar.com/blog/?p=3471 > > The (Seiko?) SN-921 can apparently be powered via DE9 or

Re: IBM 6094-010 "Dials" protocol?

On Sun, Mar 25, 2018 at 6:09 PM, Ethan Dicks wrote: > Now I'm really looking forward to unboxing these next month! My dialboxes showed up today. The Seiko unit was advertised as having a PS/2 adapter. They were mistaken. It's a DE9-MiniDIN8 adapter, presumably for newer

Re: Looking for opinions...

On Wed, Mar 28, 2018 at 3:46 PM, Fred Cisin wrote: >>> On Wed, 28 Mar 2018, Ethan via cctalk wrote: > On Wed, 28 Mar 2018, Ethan Dicks wrote: >> >> These are not my questions. I already know the answer to these. > > Ah, but we now have TWO Ethans on this list. > > THOSE

Re: Looking for opinions...

On Wed, Mar 28, 2018 at 3:14 PM, Fred Cisin via cctalk wrote: > On Wed, 28 Mar 2018, Ethan via cctalk wrote: >> >> Has all this data been converted to digital formats and posted online? >> >> Can a flatbed scanner with high resolution (1200dpi) scan these directly >> or

Re: Looking for opinions...

On Wed, Mar 28, 2018 at 12:59 PM, Al Kossow via cctalk wrote: > The rock has been lifted (again) > > DOES ANYONE READ OLD POSTS HERE?? Some of us... > Do the math. Scanning all of that fiche is man-centuries of work with all but > the most expensive equipment.

Re: IBM 6094-010 "Dials" protocol?

On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks wrote: > I went noodling around eBay and found a couple of types > > SN-921 (2.1mm barrel jack for +5V) > > https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_front.jpg > > DANAHER CONTROLS Dials DLS80-1022

Re: IBM 6094-010 "Dials" protocol?

On Sun, Mar 25, 2018 at 1:31 PM, Al Kossow via cctalk wrote: > and if anyone cares, I just listed three SGI IRIS dial boxes on ebay. > they are just rotary encoders, the smarts were in the button box, which had a > 68008 in it. I went noodling around eBay and found a

Re: ounting screw threads for VR201?

On Mon, Mar 19, 2018 at 2:18 PM, Alan Frisbie wrote: > Ethan Dicks wrote: > >> I don't happen to have a VR201 here right now to measure directly (or >> I would just do that), but IIRC, there's a threaded mounting insert on >> the bottom... > >

Re: Mounting screw threads for VR201?

On Mon, Mar 19, 2018 at 12:51 AM, dwight wrote: > 10-32 is the most common rack mount screw. Is it a standard rack rail? No. The VR201 is the small monochrome monitor found on DEC Professional machines (Pro325, Pro350, Pro380), the DEC Rainbow, and later DECmates (II, III,

Mounting screw threads for VR201?

Hi, All, I don't happen to have a VR201 here right now to measure directly (or I would just do that), but IIRC, there's a threaded mounting insert on the bottom (for the "E.T. Stand", if nothing else), I want to fabricate a shelf clip for a VR201 and am seeking the diameter/thread pitch for the

Re: AlphaServers

On Tue, Mar 13, 2018 at 4:36 PM, Ethan Dicks wrote: > On Tue, Mar 13, 2018 at 12:25 AM, Benjamin Huntsman via cctalk > wrote: >> Anyone out there do Alphas anymore? > > I did a bit of work on Alphas from 1997-2003 but at home I have... > > DEC 4000

Re: AlphaServers

On Tue, Mar 13, 2018 at 12:25 AM, Benjamin Huntsman via cctalk wrote: > Anyone out there do Alphas anymore? I did a bit of work on Alphas from 1997-2003 but at home I have... DEC 4000 AXP - works fine, haven't powered it on in a while. I have to unplug my VAX 8300 to

Re: Replica IBM 5150 PC motherboard

On Fri, Mar 9, 2018 at 10:04 AM, geneb via cctalk wrote: > On Thu, 8 Mar 2018, Marc Howard via cctalk wrote: > >> Umm, I'm missing something here. It can't possibly be $149.50 as listed >> on >> the webpage. I would think that would be the price for the bare board if >>

Re: Anyone have any info on the NEC D2167D-2?

On Tue, Feb 27, 2018 at 8:44 PM, Ethan Dicks wrote: > Hi, all, > > I'm going through a box of random ICs... > > The IC is a 20-pin ceramic body with side brazed legs, gold pins, chromed > lid, with NEC D2168D on it with "-2" painted on the ceramic and date codes > from

Anyone have any info on the NEC D2167D-2?

Hi, all, I'm going through a box of random ICs and one particular item is not showing up on my searches outside of a couple eBay auctions for chip collectors. The IC is a 20-pin ceramic body with side brazed legs, gold pins, chromed lid, with NEC D2168D on it with "-2" painted on the ceramic and

Re: Alpine vs mutt?

On Thu, Feb 22, 2018 at 4:40 PM, Tomasz Rola via cctalk wrote: > On Thu, Feb 22, 2018 at 12:38:56PM -0800, geneb via cctalk wrote: >> >Before that, I have been using pine (nowadays named alpine), which had >> >configuration edited via builtin options editor and before that,

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On Wed, Feb 21, 2018 at 2:11 PM, Chuck Guzis via cctalk wrote: > For what it's worth, I differentiate "cycle correct" from "real time". Agreed. I've been testing Z-80 emulators over the past year because a CP/M game (Scott Adams' Adventures) depends on the R register

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 1:59 PM, Paul Koning via cctalk wrote: > If microcode is not user-changeable, or if that capability is not a core > feature, then you can easily omit it. That tends to make the job much > easier. For example, I don't know that anyone emulates the

Re: Interest Check: Belden Thicknet 10base5 Ethernet Coax

On Tue, Jan 30, 2018 at 7:06 PM, systems_glitch via cctalk wrote: > Full disclosure on price: right now if I buy one spool, it'll be $0.60/foot > to me, I was thinking I'd charge $1/foot for moderate lengths, of course > I'm willing to make a deal on bulk purchases,

Re: Interest Check: Belden Thicknet 10base5 Ethernet Coax

On Fri, Feb 2, 2018 at 4:35 PM, Tony Aiuto via cctalk wrote: > Interesting. Count me in for 20'. I would want to pick up at VCF east. > > These people have taps, but no transceivers. > https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/2/228752-1 Handy! I

Re: DEC H7260 PSU fault

On Sat, Jan 27, 2018 at 5:13 PM, Glen Slick wrote: >> Just be sure to follow the grant chain - the BA23 and BA123 have a >> hybrid backplane where the first few slots are CD slots and the rest >> are serpentine (3 CD slots for BA23, 5 CD slots for BA123). > > First 4 slots

Re: DEC H7260 PSU fault

On Sat, Jan 27, 2018 at 4:34 PM, Jules Richardson via cctalk wrote: > Success! Congratulations! > I'd left the rear panel console settings how they were when I got the > machine, I mean 'T' for terminal, right? Wrong... arrow for terminal, 'T' > for "sit there

Re: DEC H7260 PSU fault

On Sat, Jan 27, 2018 at 4:34 PM, Jules Richardson via cctalk wrote: > Success! Congratulations! > I'd left the rear panel console settings how they were when I got the > machine, I mean 'T' for terminal, right? Wrong... arrow for terminal, 'T' > for "sit there alternating

Re: Ethernet cable (Was: Sun3 valuations?)

On Tue, Jan 23, 2018 at 11:12 AM, Bill Gunshannon via cctalk wrote: > Vampire taps. Now there's a blast from the past. Somewhere around here > I still have my toolbag which still has my tap drill for installing those > taps. I also have a tap drill somewhere, but it was

Re: GT-40 etc.

On Sun, Jan 21, 2018 at 1:04 PM, Paul Koning <paulkon...@comcast.net> wrote: >> On Jan 20, 2018, at 11:06 PM, Ethan Dicks via cctalk <cctalk@classiccmp.org> >> wrote: >> >> On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson <used...@gmail.com> wrote: >

Re: Help identifying IC

On Sat, Jan 20, 2018 at 9:06 PM, Josh Dersch via cctalk wrote: > Hi all -- > > I picked up this little toy at VCF West last summer: > > https://1drv.ms/i/s!Aqb36sqnCIfMouYd0HV0ZThE3FnE_Q Cute! > As far as I can tell, it's supposed to be a clock Sure looks like one. >

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 11:25 PM, Guy Sotomayor Jr wrote: >> On Jan 20, 2018, at 8:07 PM, Ethan Dicks wrote: >> On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: >>> As I understand it, the power for the DACs actually comes

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: > As I understand it, the power for the DACs actually comes from the monitor > (VR12/4/7) and > thus you can’t use any monitor without some additional circuitry to provide > the power to the > DACs. Interesting. I

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson wrote: > I think just the VR12, VR14, and the VR17. OK. I've never had any of those. I'm more wondering what modern tubes might work. > I might have an extra VT11 backplane. I may also have the backplane. I'm not as certain

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 6:46 PM, Marc Howard via cctalk wrote: > There was a guy in the Netherlands (I believe) who was trying to sell a > GT40 for $14K with no delivery option. Oof! > If I were on the east coast (or just not very busy) I would have higher on > the ebay

Re: Cheap Analog PBX was: RE: Google, Wikipedia directly on ASCII terminal?

On Tue, Jan 16, 2018 at 6:59 PM, Anders Nelson via cctalk wrote: > Silvertel makes POTS line interfaces (SLICs) that work on 3.3v or 5v > supplies. They do all the high voltage generation and impedance wizardry on > the POTS side, then expose audio in/out and simple control

Re: DEC H960 stabiliser feet. Have some questions.

On Wed, Jan 3, 2018 at 10:28 AM, Vincent Slyngstad via cctalk wrote: > From: Steve Malikoff via cctalk: Tuesday, January 02, 2018 6:24 PM >> >> I'm in need of some feet for my H960s and am intending to make a few >> pairs, so I thought I might as well try and make them look

Re: EPROM baking

On Sat, Dec 23, 2017 at 12:04 PM, Jon Elson via cctalk wrote: > I made my own 2716-2764 programmer MANY years ago. On a few occasions I put > an EPROM in wrong and saw the bonding wires light up! I killed power and > corrected the mistake, and the EPROM worked fine. I

Re: DEC indicator panel mounting details

On Tue, Dec 19, 2017 at 5:36 PM, Josh Dersch via cctalk wrote: > On Tue, Dec 19, 2017 at 2:25 PM, Josh Dersch wrote: > > See the pictures at the below link: > > https://1drv.ms/f/s!Aqb36sqnCIfMotpQIuc2-tDUva3iBw > > It looks to be fairly

Re: DEC indicator panel mounting details

On Tue, Dec 19, 2017 at 1:49 PM, Noel Chiappa via cctalk wrote: > So, Dave and I are getting to the point where we're about to start mounting up > our indicator panels, but we're not sure what some of the mechanical details > (below) are. > > Could someone who has one

Re: RL02 to PC image

On Fri, Dec 15, 2017 at 1:49 PM, systems_glitch wrote: > It's on my list of things to do -- you can run external clock into DL11 and > DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit, > so somewhere between 38400 and 2 mbit should be possible.

Re: RL02 to PC image

On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch wrote: > vtserver does indeed work for transferring RL02 contents to a binary image, > suitable for use with SIMH or E11 or whatever. Yep. I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours. > Be advised,

Re: RL02 to PC image

On Fri, Dec 15, 2017 at 2:36 AM, Vincent Slyngstad via cctalk wrote: > Mine are available here: > http://www.so-much-stuff.com/pdp8/cad/3d.php > > It's a fairly finicky print. Fine detail and cantilevered thin pins that > need to be straight and reasonably strong. I

Re: RL02 hook up to 11/04

On Thu, Dec 14, 2017 at 10:59 AM, John Welch via cctalk wrote: > Now that I have the 11/04 running the next step is to hook up to the RL02. Excellent. > I need to run a cable from the M7762 to one of the connectors on the back of > the RL02. I have cabling stripped from

Re: Dec-10 Day announcement from Living Computers: Museum + Labs

On Sun, Dec 10, 2017 at 3:21 AM, Rich Alderson via cctalk wrote: > Happy DEC-10 Day! Indeed! > It is my honor to announce that we at Living Computers: Museum + Labs > are releasing to the computing community our Massbus Disk Emulator > and all the associated software.

Re: PDP-8 chassis on eBay

On Tue, Nov 7, 2017 at 10:00 AM, Dave via cctalk wrote: > Can you tell which PDP8 this goes with? Would an 8/e panel fit? Looks like a long Omnibus chassis, so -8/e or -8/f. Yes. An 8/e/f/m bezel and panel should fit. It shouldn't be horribly hard to find a bare

Re: NEC 4164-12

Hi, Emanuel, I have a quantity of 4164 DRAM from the Comboard days, new in tube. It is likely to mostly be 150ns and I don't know the brands until I dig it out, but I will check when I get home. If it matches what you need, I'm happy to send some to you. -ethan On Oct 28, 2017 12:32, "emanuel

Re: Apple II no video display

On Fri, Oct 27, 2017 at 4:13 PM, Brent Hilpert via cctalk wrote: > 74S is faster than 74LS, 74LS was combining low power techniques (which > result in loss of speed) with Schottky technology to get some of the lost > speed back, to get a better speed-power product than

Re: Apple II no video display

On Fri, Oct 27, 2017 at 11:40 AM, Dave Wade via cctalk wrote: > Folks, > > I have an Apple II that produces one beep at power on, but my monitor says > "no video present". A scope on the output shows frame sync but at low > levels. Are you using a vintage CRT or a modern

Is a Hitachi P/N 21-18470-01 64Kx1 DRAM a rebadged 4864?

Hi, All, I have some Hitachi parts, marked 21-18470-01, that I pulled from a DEC Professional 350 on an upgrade to 256Kx1 DRAMs. I am trying to track down a specific thing about them. I found a vcfed.org post about these same type chips in a DEC Rainbow and the question (but not firm

Re: Kennedy 9800 - supply reel o-ring size?

On Fri, Oct 13, 2017 at 3:55 PM, Anders Nelson via cctalk wrote: > Hello friends, > > The Kennedy 9800 arrived... > > Anyway the supply reel has some slop in it when I mount a tape so I suspect > the o-ring has lost some fluff. It looks to be 3.4" in diameter and 0.2" >

Re: More videos of VCF's Univac

On Tue, Oct 10, 2017 at 1:00 AM, Evan Koblentz via cctalk wrote: > Here it is loading/running memory tests and Wumpus. :) > > https://www.youtube.com/playlist?list=PL_e5fSxflvrzeovlnioDfQR86zJOLPQ-D Fun. Would love to see more Wumpus, but turn the camera 90 degrees. Was

Re: M7195 SLU issue might actually be 12v rail

On Sat, Sep 30, 2017 at 6:33 PM, Aaron Jackson via cctalk wrote: > Hi all, > > Instead of jumping straight in and ordering an SLU, I decided to check > the power supply voltages. My +12V rail appears to be only giving about > +4.6V That does not sound fine. > This is an

Re: formatting MFM drives on a IBM PC

On Tue, Sep 26, 2017 at 2:08 PM, emanuel stiebler via cctalk wrote: > Hi, > > trying to check some MFM drives I have on my shelf. > Have an IBM PC AT, with an WD1003 controller in it. > > So, what is the best(?) or easiest piece of software, > to format the drives, check

Re: DEC H9xx rack parts needed

On Sat, Sep 16, 2017 at 4:57 PM, Chuck Guzis via cctalk <cctalk@classiccmp.org> wrote: > On 09/16/2017 01:47 PM, Ethan Dicks via cctalk wrote: > >> This sort of project would be perfect on this wee lathe > You'll still need to center-bore the hole through the thing, wh

Re: DEC H9xx rack parts needed

On Sat, Sep 16, 2017 at 4:16 PM, Paul Koning via cctalk wrote: does anyone have any spare "pivot bushings" for the DEC H9xx series cabinets (H950, H960, etc)? (These are the short pieces with a conical top which fit over the hinge pins, at the bottom.) >>>

Re: markup vs. word processing [ was RE: RIP Jerry Pournelle, the first author to write a novel on a computer Earl...]

On Mon, Sep 11, 2017 at 3:05 PM, Rich Alderson via cctalk wrote: > I didn't think of it as word processing, but I did something similar at Ohio > State in 1974... Hi, Rich, Did we ever discuss when you were at OSU? I know I've had conversations with Herb Johnson about

Re: ETAOIN SHRDLU (Was: RIP Jerry Pournelle, the first author to write a

On Mon, Sep 11, 2017 at 11:35 PM, Fred Cisin via cctalk wrote: > (It is sometimes stated that Sholes deliberately chose QWERTY to slow down > typists to the speeds that the early typewriters could handle; that story > has been challenged, but a replacement story of how that

Interest in Prime manuals?

Hi, All, Been helping a friend clean out his garage and we ran across a cubic foot of Prime manuals, mostly software and applications, probably from the early to mid 1980s (I did not see clear indication on casual inspection). These have been unfortunately stored in a place that has gotten damp

Re: Need VT-100 switch

On Tue, Aug 29, 2017 at 3:04 PM, E. Groenenberg via cctalk wrote: > Hello. > > Does somebody maybe have a spare switch of a VT-100 (the one at the back)? I don't (and have a PSU that needs one) but I'm glad you asked. The other answers have been helpful to me here in the

Re: DEC ll/03 in 22 bit backplane

On Tue, Aug 29, 2017 at 10:52 PM, Douglas Taylor via cctalk wrote: > I have a BA11-M box with a backplane that I am sure has been upgraded to be > 22 bit addressing. If you send me a picture of the backplane part of the box (without the outer shroud), I might be able to

Re: PDP 8e green / lab version rack Ebay

On Sun, Aug 27, 2017 at 4:47 PM, ben via cctalk wrote: > Remember the days "free for pickup." :-) I sure do. Got a lot of gear that way. Mostly 1984-1994. Not a lot in the past 10 years, for rackable DEC stuff anyway. A desktop VAXstation or a desktop Alpha or two.

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