Re: Retro Reproduction.

On 10/23/2015 11:33 AM, rod wrote: Hi Noel Your ps comments are very perceptive. I have no doubt that people out there are gathering TTL even as we speak. Hides the 74LSxx and solder ... pulls out some knitting. If they still had edge connectors, 74LS382's and the old DOS pcb

Re: The Internet & our hobby

On Fri, 23 Oct 2015, Chuck Guzis wrote: Yeah, I had quite a number of problems with the original post also. We each see a different part of the elephant. Sometimes I think that Murray is/was at the other end than I am/was. I really like Murray, and what he says, but his views of what was

RE: The Internet & our hobby

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.

RE: Model 28 Teletype on ebay

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brad > Sent: 23 October 2015 01:57 > To: 'General Discussion: On-Topic and Off-Topic Posts' > > Subject: Model 28 Teletype on ebay > > Hey guys, > > > > Further to our

Re: KIM Uno /PiDP-11 plans...

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...). The white bezel though brings me into unknown territory. 3D CAD (based on Museum

Making a PDP-11 bezel

>> http://retrocmp.com/projects/pdp-11-70-panel-on-blinkenbone/243-simulated-pdp-11-70-panel-on-simh That's a work of art, together with the PDP-10 he did. I saw them running on a nice touch screen at VCF Berlin, and I wondered whether all this physical replication stuff makes sense when that's

Re: KIM Uno /PiDP-11 plans...

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

Re: The Internet & our hobby

On 2015-10-23 13:20, Noel Chiappa wrote: > From: Johnny Billquist > the switch to TCP/IP only happened in 1982-1983. So while the > "internet" (well, ARPANET actually) existed before then, it was not > TCP/IP based. The conversion of the _ARPANET_ from NCP to TCP/IP

Re: KIM Uno /PiDP-11 plans...

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.

Re: KIM Uno /PiDP-11 plans...

> It's just a matter of working out what the part number would be! OK, I've cracked the part number code. The things we are looking for are: 7101J50 CxE 7108J50 CxE where x is a letter selecting the contact material (about 10 options, including gold, silver,

Re: Common Maxtor MFM drive failure mode -- any ideas?

On 10/23/15 12:04 AM, Josh Dersch wrote: The 2190 does not, and it fails in precisely the same way I've personally seen three or four other Maxtor drives of the same era fail: It spins up fine, but when it goes to load the heads, it sounds like the voice coil positioner for the heads is

Re: Common Maxtor MFM drive failure mode -- any ideas?

On 10/23/15 1:33 AM, Joseph Lang wrote: the scream is the stepper motor trying to move with only one phase working. (Also a common drive failure.) Maxtor drives have a very distinctive (and loud) recal sound.

Re: Previous message: KIM Uno /PiDP-11 plans...

On 10/23/2015 09:57 AM, Noel Chiappa wrote: I tried looking through the catalog at that site, to see if I could find the SPST version, but no luck. (Although maybe I'm just a klutz about that site - it wasn't easy for me to use.) Maybe your parts-search-fu is better than mine? You might

Re: KIM Uno /PiDP-11 plans...

On Thu, Oct 22, 2015 at 1:37 AM, Mike Ross wrote: > Well done. Have you looked at 3D printing? Not fast, not especially > cheap, but potentially the least difficult developmentally. And once > it's set up you can just let her rip and churn them out. > > A few comments on 3D

HI TEK Keyboard plungers?

Hello, I have been servicing an HP 85A and an HP 85B desktop computer (printer belts, tape drive capstan). While the key caps of the "A" model are plugged into yellow plungers (according to the service manual the manufacturer is "STACKPOLE") the "B" came with white plungers ("Hi TEK" according

RE: KIM Uno /PiDP-11 plans...

I think that the switches can be found, but they might be expensive. I have a few that I used on recent project. What I found hard was obtaining centre off switches as it appear from this picture:- http://www.vintage-computer.com/vcforum/showthread.php?46651-hi-PDP-11-45-fo

RE: KIM Uno /PiDP-11 plans...

Dave wrote... -- I think that the switches can be found, but they might be expensive. -- But as Noel wrote... the problem isn't the CK switches as far as the "model number" on them goes. They can be found pretty easy. The problem is that CK switches used in these systems were custom made

RE: KIM Uno /PiDP-11 plans...

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jay West > Sent: 23 October 2015 14:19 > To: 'General Discussion: On-Topic and Off-Topic Posts' > > Subject: RE: KIM Uno /PiDP-11 plans... > > Dave wrote... > -- > I think

Re: The Internet & our hobby

> From: Johnny Billquist > the switch to TCP/IP only happened in 1982-1983. So while the > "internet" (well, ARPANET actually) existed before then, it was not > TCP/IP based. The conversion of the _ARPANET_ from NCP to TCP/IP happened on 1 January, 1983. However, 'the Internet'

Re: KIM Uno /PiDP-11 plans...

On Fri, Oct 23, 2015 at 10:26 PM, 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

Re: KIM Uno /PiDP-11 plans...

On Thu, 22 Oct 2015, Oscar Vermeulen wrote: Hi, Oscar is already working on another very promising product. [..]He will also pay a visit to my "museum" to take a few measurements. Sorry, can't say more I'll leave that up to Oscar. Perhaps he want to stay "below the radar" until that

Re: The Internet & our hobby

On 2015-10-23 02:54, Murray McCullough wrote: 43 years ago around this time the Internet we use to communicate with was probably made possible because of TCP/IP, or Transmission Control Protocol/Internet Protocol created at Stanford University. Today 3 billion people are on the net but really

Re: KIM Uno /PiDP-11 plans...

> From: Alexandre Souza > Easily done if I had the original part on hand 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). The real issue in any front panel recreation is

Re: Seeking Terry Gulczynski

On Fri, 23 Oct 2015, d...@661.org wrote: Has anyone heard from Terry Gulczynski (http://stack180.com/) since October 12? I've been waiting for him to tell me it's okay to send him a P112 kit for assembly and testing. Now I'm worrying that something may have happened to him. He lives in

Re: The Internet & our hobby

Well that is sort of right. I was working for digital at the time and therefore I have a slightly different perspective. Internet has its roots in three places the US universities, Research Establishments and the US military. ARPAnet came sometime before Internet. It was a packet switching

Re: The Internet & our hobby

> From: Johnny Billquist > not going to try and contradict what you wrote. Right, I wasn't meaning to imply what you said was incorrect, just giving a little more detail on what was a murky and complicated process. > I suspect it's because people now assume that "Internet" was

Re: Common Maxtor MFM drive failure mode -- any ideas?

On 10/23/2015 09:10 AM, Al Kossow wrote: Maxtor drives have a very distinctive (and loud) recal sound. And some Maxtor drives are Miniscribes. I have one (I think it's an ESDI, IIRC) that has a beautiful Miniscribe HDA casting, with a Maxtor label wrapped around it. Ah, the good old days

Re: The Internet & our hobby

never heard of it -Ed# In a message dated 10/23/2015 10:08:44 A.M. US Mountain Standard Tim, paulkon...@comcast.net writes: How many people consider the Micral to be of that level of significance?

Re: Model 28 Teletype on ebay

On Thu, 22 Oct 2015, Brad wrote: > Wasn't sure if it was two units? The first couple of pics look different. > Anyway, if I understood correctly, it was possible (and possibly done in the > 1970s by hobbyists) to convert one of these baudot teletypes to ASCII and I have two model 28s: an RO and

Re: Retro Reproduction.

Hi Noel Your ps comments are very perceptive. I have no doubt that people out there are gathering TTL even as we speak. The one I always call to mind is the guys who built themselves flight simulators out of genuine parts. I've seen replica cars of all kinds. Boats yes Steam

RE: Common Maxtor MFM drive failure mode -- any ideas?

> > > The 2190 does not, and it fails in precisely the same way I've personally > > seen three or four > > other Maxtor drives of the same era fail: It spins up fine, but when it > > goes to load the heads, > > it sounds like the voice coil positioner for the heads is "screaming" -- it > >

Re: The Internet & our hobby

> On Oct 23, 2015, at 12:37 PM, Fred Cisin wrote: > > ... >> Today 3 billion people are on the net > > Is that all? I've always thought of writing an SF story involving extensive > extra-terrestial presence on the net. Neat idea. Go for it! >> but really made it

Re: The Internet & our hobby

On 10/23/2015 09:37 AM, Fred Cisin wrote: TCP/IP would be 33, not 43 years ago. The internet was certainly not "made possible" by TCP/IP. It was inevitable that eventually there would be movementS towards standardization of protocols on the arpanet. They could have done much worse than TCP/IP!

Re: KIM Uno /PiDP-11 plans...

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 > >

Re: The Internet & our hobby

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

RE: The Internet & our hobby

Neither had I, but that doesn't mean it wasn't significant. http://www.old-computers.com/museum/computer.asp?c=352 suggests "Supposedly it was the first personal computer programmed by Philippe Kahn, founder of Borland." And this is supported by a couple of reports, e.g.

Re: The Internet & our hobby

On 10/23/2015 10:43 AM, Noel Chiappa wrote: I snorted and started coughing when I read that! :-) Usenet had massive flame wars long before the Web existed! Yes, there were flame wars--but nothing that sank to the level of depravity of flame wars on the web. ...and it could be just that I

Re: KIM Uno /PiDP-11 plans...

> 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 7101J50 CQE2's .. investigating further now. OK, so I've ordered 10

Re: The Internet & our hobby

Nope never heard of it either Rod On 23/10/15 18:29, couryho...@aol.com wrote: never heard of it -Ed# In a message dated 10/23/2015 10:08:44 A.M. US Mountain Standard Tim, paulkon...@comcast.net writes: How many people consider the Micral to be of that level of significance?

Re: The Internet & our hobby

but! now that we have heard of it SMECC museum wants one! Ed# In a message dated 10/23/2015 10:43:50 A.M. US Mountain Standard Tim, rodsmallwoo...@btinternet.com writes: Nope never heard of it either Rod On 23/10/15 18:29, couryho...@aol.com wrote: > never heard of it -

Re: Retro Reproduction.

> From: Rod Smallwood > perhaps we can pool our knowledge and and allocate getting different > parts sourced/made to different people. Makes sense to me. > 2. Lever keys (pdp8 type and PDP11 type ) For the PDP-11, there are three kinds of plastic toggle/actuator: one like the

Re: The Internet & our hobby

> From: Fred Cisin > It was inevitable that eventually there would be movementS towards > standardization of protocols on the arpanet. Actually, TCP/IP grew out of the desire to interconnect two very different kinds of network - the ARPANET, and something called the Packet Radio

Re: Retro Reproduction 2

On 10/23/2015 6:43 PM, Mike Ross wrote: > 1. A replacement perspex for a pdp-12; damaged in shipping :-( If you mean the plexiglass for the console, I might be able to help with that. I thought at one point I was going to get an entire PDP-12 from U. Wisconsin Comm. Arts, but when I showed up

Re: The Internet & our hobby

On 10/23/2015 8:28 PM, Jay Jaeger wrote: On 10/23/2015 3:29 PM, Ethan Dicks wrote: On Fri, 23 Oct 2015, Bill Sudbrink wrote: I'd expect wide-eyed stares from a vi user... ;-) Q: What goes "beep beep beep"? A: A Little Nash Rambler... and a vi novice. -ethan ROTFL. JRJ Microdata

Re: Retro Reproduction 2

On 10/23/2015 10:37 PM, Jay Jaeger wrote: > On 10/23/2015 6:43 PM, Mike Ross wrote: > >> 1. A replacement perspex for a pdp-12; damaged in shipping :-( > > If you mean the plexiglass for the console, I might be able to help with > that. I thought at one point I was going to get an entire PDP-12

Re: The Internet & our hobby

On 10/22/2015 7:54 PM, Murray McCullough wrote: > 43 years ago around this time the Internet we use to communicate with > was probably made possible because of TCP/IP, or Transmission Control > Protocol/Internet Protocol created at Stanford University. Today 3 > billion people are on the net but

Re: The Internet & our hobby

On 10/23/2015 3:29 PM, Ethan Dicks wrote: > On Fri, 23 Oct 2015, Bill Sudbrink wrote: > > I'd expect wide-eyed stares from a vi user... ;-) > > > Q: What goes "beep beep beep"? > > A: A Little Nash Rambler... and a vi novice. > > -ethan > ROTFL. JRJ

Re: Retro Reproduction.

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

Re: Retro Reproduction.

On 10/23/15 13:05, Jay West wrote: > Yeah, I couldn't remember what system it was... but when I first took > apart a DG front panel and looked at the plastic switch covers, I > *KNOW* I remember that I had worked on some other brand of machine > that had identical (or at least very close)

RE: Retro Reproduction.

Vince wrote... - In addition, the pivot heads seem to have been spread with some sort of heat process, so it is virtually impossible to remove the handle without breaking off the pivots. - I should point out... so far I've had about six or eight switch covers on various eclipse

Re: Retro Reproduction.

From: Jay West: Friday, October 23, 2015 1:14 PM Vince wrote... - In addition, the pivot heads seem to have been spread with some sort of heat process, so it is virtually impossible to remove the handle without breaking off the pivots. - I should point out... so far I've had about

Re: The Internet & our hobby

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.

Re: Retro Reproduction.

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

Re: Retro Reproduction.

From: Ethan Dicks: Friday, October 23, 2015 12:27 PM 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

RE: Retro Reproduction.

Ethan wrote... Looking at your picture, I'd say that is not identical to any DEC switch handle I know of. Yeah, I couldn't remember what system it was... but when I first took apart a DG front panel and looked at the plastic switch covers, I *KNOW* I remember that I had worked on

RE: Retro Reproduction.

On the Vintage Computer Forums some one has produced replacement keys for his TV Typewriter using rubber moulds and casting resin. It looks shiny and dyes are available... ... but you might have to machine the hole in the end for the shaft to go into.. Dave > -Original Message- >

Re: Common Maxtor MFM drive failure mode -- any ideas?

On Fri, Oct 23, 2015 at 9:08 AM, Al Kossow wrote: > On 10/23/15 12:04 AM, Josh Dersch wrote: > > The 2190 does not, and it fails in precisely the same way I've personally >> seen three or four other Maxtor drives of the same era fail: It spins up >> fine, but when it goes to

Miniscribe "bricks" (was Re: Common Maxtor MFM drive failure mode -- any ideas?)

- Ursprüngliche Message - > Von: Chuck Guzis > An: General Discussion: On-Topic and Off-Topic Posts > CC: > Gesendet: 18:16 Freitag, 23.Oktober 2015 > Betreff: Re: Common Maxtor MFM drive failure mode -- any ideas? > > On 10/23/2015 09:10

RE: Retro Reproduction.

Ben wrote... Bring in the Gorillas. :) Other than bootstrapping, switches tend to sit idle. Guess it's all what you're doing. I use the front panels *A LOT* on all my machines. A completely missing switchcover, or a broken switch, would be far more than just an inconvenience to me at

RE: The Internet & our hobby

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. WordStar.

RE: The Internet & our hobby

started early. 'course in our day, we were much more polite in how we flamed Emacs? You _MUST_ be kidding. On Fri, 23 Oct 2015, geneb wrote: WordStar. Non-document mode. Did you really think that that was better than Electric Pencil? My very first inspiration for writing XenoCopy was

Re: The Internet & our hobby

Don't get me wrong... Emacs isn't a bad OS... Too bad there isn't a decent text editor for it.  Sent from my Verizon Wireless 4G LTE smartphone Original message From: Ethan Dicks Date: 10/23/2015 4:29 PM (GMT-05:00) To: "General Discussion:

RE: Retro Reproduction.

Ethan wrote... > Do the DG handles have the same problems as DEC switch handles? > (fragile pivots that break off) To which Christian replied... Only the 16-bit Eclipse family, and they're really not that fragile -- you sort of have to work to break them. Ethan - Yes. They have the

RE: Retro Reproduction.

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. J

Re: Retro Reproduction.

On 10/23/15 12:27, Ethan Dicks wrote: > Do the DG handles have the same problems as DEC switch handles? > (fragile pivots that break off) Only the 16-bit Eclipse family, and they're really not that fragile -- you sort of have to work to break them. -- Christian Kennedy, Ph.D.

Re: Retro Reproduction.

On 10/23/2015 1:29 PM, Christian Kennedy wrote: On 10/23/15 12:27, Ethan Dicks wrote: Do the DG handles have the same problems as DEC switch handles? (fragile pivots that break off) Only the 16-bit Eclipse family, and they're really not that fragile -- you sort of have to work to break

Re: Retro Reproduction.

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

Re: Retro Reproduction.

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/23/15 12:55, Jay West wrote: > I disagree with Christian on one point... those side pins are > *every bit* as fragile as the dec ones. Maybe it's an aging thing? In the space of a decade with S/130s, S/200s, S/230s, C330s and an

Re: Retro Reproduction.

On 10/23/2015 01:57 PM, Paul Koning wrote: On Oct 23, 2015, at 2:48 PM, ben wrote: ... It does seem mechanical stuff is dieing art. I don't know about that. Yes, there is an open-source project that provides a CNC machine control for mill, lathes, hexapods and robots.

Re: KIM Uno /PiDP-11 plans...

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 switches are likely to sell for $4-$6 each as new (I've gotten fistfuls of similar ones at Hamfests for $0.75 or

Re: Previous message: KIM Uno /PiDP-11 plans...

> From: Dave Wade > What I found hard was obtaining centre off switches as it appear from > this picture ... that PDP-11 Switches may be flipped up or down, or is > that not true? No, they are all 'standard' (except for the mounting) SPST switches; most (e.g. the address/data

Re: KIM Uno /PiDP-11 plans...

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

Retro Reproduction.

Hi Guys We seem to have a bit of a rush on to do reproductions of mainly digital front panels, bezels and switches. Before we all run round and go through the same learning curve perhaps we can pool our knowledge and and allocate getting different parts sourced/made to different

RE: Retro Reproduction.

Rod; It's not just the dec folks. I have a DG box that I'd REALLY like to get a new (plexiglass, but thinner and more flexible) panel done for. I'd imagine it's silkscreening And I know of at least one other DG person looking for the same... J

Re: KIM Uno /PiDP-11 plans...

On 2015-10-23 14:39, Dave G4UGM wrote: I think that the switches can be found, but they might be expensive. I have a few that I used on recent project. What I found hard was obtaining centre off switches as it appear from this picture:-

Re: PDP2011 board

On 10/22/2015 10:09 PM, ben wrote: On 10/22/2015 10:54 PM, Don North wrote: For PDP2011 direct compatibility then the path of least resistance is probably the DE0-NANO with CycloneIV for $79. I have several; nice little boards for experimentation. You can get it from Adafruit ($99) or Digikey

Common Maxtor MFM drive failure mode -- any ideas?

Hi all -- I acquired a Symbolics 3640 today and it came equipped with two "large" capacity Maxtor MFM drives (an XT-1140 and an XT-2190). The 1140 spins up fine and we were able to image it using Dave Gesswein's MFM emulator (yay). The 2190 does not, and it fails in precisely the same way

RE: The Internet & our hobby

On Fri, 23 Oct 2015, Fred Cisin wrote: started early. 'course in our day, we were much more polite in how we flamed Emacs? You _MUST_ be kidding. On Fri, 23 Oct 2015, geneb wrote: WordStar. Non-document mode. Did you really think that that was better than Electric Pencil? I'm going to

Re: Common Maxtor MFM drive failure mode -- any ideas?

On 10/23/15 12:39 PM, Josh Dersch wrote: I don't suppose anyone has a service manual for these things so I know what stuff to probe? (Nothing on Bitsavers and a casual Google search turns up nothing of interest.) Service manuals/schematics/ASIC info is EXTREMELY difficult to get for anything

Re: The Internet & our hobby

> Early internet systems--I'm not sure where to draw the line between > Usenet, ARPANet and Internet [...] I would say that the Internet was the collection of hosts/networks supporting (and assuming) more-or-less[%] real-time host-to-host connectivity. [%] RFC 1149, anyone? :-) Thus, a host on

Retro Reproduction 2

Hi Guys Well my missive on reproductions seems to have generated some interest. There seems to be a lot of will to keep the old systems going and to reproduce parts for them and indeed build complete systems from new parts. The main areas of interest are front panels (Not just DEC), key

Re: Miniscribe "bricks" (was Re: Common Maxtor MFM drive failure mode -- any ideas?)

On 10/23/2015 02:49 PM, Noel Chiappa wrote: From: Pierre Gebhardt Haha, I guess you're alluding to the massive scam with the bricks, Miniscribe did back them to pretend stocks full of disk drives... Never heard the story. Can someone oblige? BTW, are there any other similar stories from

Re: Retro Reproduction.

On 10/23/2015 04:32 PM, geneb wrote: On Fri, 23 Oct 2015, Jon Elson wrote: I sell some hardware for motion control based on this software, and have sold over 300 controller-interfaces. A popular one seems to be using MachineKit on a Beagle Bone Black Yes, my latest product is the

Re: Retro Reproduction 2

Mike said: > 4. IBM metal panel consoles. I have a couple of these - System/370 > models 145 and 155 - which are complete but a bit ropy and rusty and > damaged in parts; see: http://www.corestore.org/370148-1.jpg - They're > just sheet steel painted black with the legend silkscreened (I >

Commodore and Atari

Is anyone interested in a Vic 20, Atari 800XL, or an Amiga? The Amiga appears to be missing a couple of things. No AC adapters for any of them. Complete key caps, no severe yellowing, no way to test. The Amiga resembles this one: http://www.oldcomputers.net/pics/amiga500.jpg Cindy ---

Re: Retro Reproduction 2

On Sat, Oct 24, 2015 at 11:22 AM, rod wrote: > Hi Guys > > Well my missive on reproductions seems to have generated some interest. > There seems to be a lot of will to keep the old systems going and to > reproduce parts for them > and indeed build complete systems

Re: The Internet & our hobby

On 24/10/2015 00:00, Diane Bruce wrote: I have fond memories of our Unix sys admin refusing to install a bloated editor. vi on a PDP-11/45 (v7 Unix) Ah yes, I remember similar issues. If you try to run vi (and some other things) under 7th Edition set up for a machine like the 11/23, it

Re: Retro Reproduction.

On Fri, 23 Oct 2015, Jon Elson wrote: On 10/23/2015 01:57 PM, Paul Koning wrote: On Oct 23, 2015, at 2:48 PM, ben wrote: ... It does seem mechanical stuff is dieing art. I don't know about that. Yes, there is an open-source project that provides a CNC machine control

Re: The Internet & our hobby

On Fri, Oct 23, 2015 at 10:22:42PM +, ANDY HOLT wrote: > > Don't get me wrong... Emacs isn't a bad OS... Too bad there isn't a decent > text editor for it.  > > > Sent from my Verizon Wireless 4G LTE smartphone > > > Ah, but nowadays who cares about > "Eight Megabytes and

Re: Miniscribe "bricks" (was Re: Common Maxtor MFM drive failure mode -- any ideas?)

> From: Pierre Gebhardt > Haha, I guess you're alluding to the massive scam with the bricks, > Miniscribe did back them to pretend stocks full of disk drives... Never heard the story. Can someone oblige? > BTW, are there any other similar stories from the disk drive buisiness

Re: Common Maxtor MFM drive failure mode -- any ideas?

On 10/23/15 1:19 AM, Joseph Lang wrote: There is a plastic bumper in the head/disk assembly that turns to goo. When the head retracts it hits the bumper and gets stuck in the goo. The goo will eventually win. The head will no longer load. I can't say For sure this is your disk problem but it

RE: PDP2011 board

> > > And if you are going to learn an FPGA development language look at > > SystemVerilog/Verilog, OpenCL, or VHDL. Certainly not AHDL. It was bad > > even when it was new. It does not get better with age. > > I'll go back to schematic entry before I touch them. > They FUCK! Please keep

Re: Common Maxtor MFM drive failure mode -- any ideas?

If the bumper is there it will be on the side wall of the HDA where the head actuator would touch when retracted. If the heads move freely you have a driver failure. the scream is the stepper motor trying to move with only one phase working. (Also a common drive failure.) Joe > On Oct 23,

Re: Common Maxtor MFM drive failure mode -- any ideas?

There is a plastic bumper in the head/disk assembly that turns to goo. When the head retracts it hits the bumper and gets stuck in the goo. The goo will eventually win. The head will no longer load. I can't say For sure this is your disk problem but it was a verry common Maxtor failure. Joe >