Re: A poltergeist in my machine?
Noel Chiappa wrote: [..] > - and the memory still works fine! > > > Does anyone have _any_ idea WTF is going on here?!?! > > I feel like I'm in some sort of AI koan... > > Noel - bad solder joint - bad via - thin whisker - bad wire bonding in the chip ..that are the possibilities come to mind. I would change the and gate chip and resolder the vias in it's area. Cleaning both sides of the PCB with a thootbrush and isopropanol isn a good idea anyways. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583 www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741
Re: 21MX proms (per request)
I still do. And I'm even looking for an apple parker vector rollerball pen :) :) :) Em 08/09/2015 02:58, "j...@cimmeri.com" escreveu: > On 9/8/2015 12:28 AM, Marc Verdiell wrote: > >> Thanks for the answers everyone, I am writing everything down... >> Marc >> >> >> >> > Nice to hear that people are still *writing* things down... > > - J. >
Re: 21MX proms (per request)
On 9/8/2015 12:28 AM, Marc Verdiell wrote: Thanks for the answers everyone, I am writing everything down... Marc Nice to hear that people are still *writing* things down... - J.
RE: RE: 21MX proms (per request)
Thanks for the answers everyone, I am writing everything down... Marc
Re: Interlisp-D (Medley) "display font" disks for the 1186?
On 9/7/15 7:21 PM, Josh Dersch wrote:
On 9/7/15 8:01 AM, Al Kossow wrote:
On 9/6/15 2:18 PM, Josh Dersch wrote:
Lots of other disks to look through but it's a pain to get them
written out; one of those HxC floppy drive emulators is looking
rather nice right now :).
you might want to see if
http://bitsavers.org/bits/Xerox/8010/extractXeroxFloppy.zip can be
adapted to the 5" format
Cool, I didn't know of that tool's existence. From the code, it looks
like 5.25" formats may already work:
switch(sectors)
{
...
case 9: sectorsT0 = 16; /* 5.25 inch 360k */
...
}
I'll have to play with it when I have a few minutes...
Thanks!
Josh
Quick update: This compiled (with warnings) on my Mac and seems to run
fine. It does appear to support 5.25" 360K images and I was able to
extract files from the 1186/6085 images (from Bitsavers). The ViewPoint
images do not seem to have any loosely-packaged font files on them,
they're all in some kind of container format. The 1186 images yielded
a bit more fruit, there are font files with extension ".STRIKE" on the
XDE floppies and ".PSCFONT" on "Medley LispUsers #15".
Neither of these seem to match the few examples of filenames I see in
the 1186 docs, but I'll see if I can get a couple of these disks written
out and see what's what later this week.
I also looked briefly at the images for the 1108 and nothing obvious
jumped out.
- Josh
Re: Control Data ad: Omega 480 "370 compatible alternative" on eBay
So, an IBM compatible machine, sold by CDC, with a DEC terminal for the console? Must have been the beginning of the end :-) On September 6, 2015 11:36:05 PM CDT, Chuck Guzis wrote: >On 09/06/2015 07:54 PM, Mark Linimon wrote: >> >http://www.ebay.com/itm/VINTAGE-197X-RARE-CONTROL-DATA-AD-OMEGA-480-370-COMPATIBLE-ALTERNATIVE-Q-/271967493965?hash=item3f52869f4d >> >> Not that I'm going to bid on it, but ... I had never heard of this >> CDC product before. Does anyone have any idea if this was a real >> product, or just a way to poke IBM in the eye, or what? > >It's not a CDC product--it was made by IPL Systems, Inc. and marketed >by >CDC and supplied with CDC peripherals. I don't know if the agreement >yielded much in sales; by 1981, IPL was selling to end users under its >own brand. > >Olivetti also sold IPL iron. > >Yet another of several IBM mainframe clone makers. > >--Chuck -- Chris Elmquist
Re: Interlisp-D (Medley) "display font" disks for the 1186?
On 9/7/15 8:01 AM, Al Kossow wrote:
On 9/6/15 2:18 PM, Josh Dersch wrote:
Lots of other disks to look through but it's a pain to get them
written out; one of those HxC floppy drive emulators is looking
rather nice right now :).
you might want to see if
http://bitsavers.org/bits/Xerox/8010/extractXeroxFloppy.zip can be
adapted to the 5" format
Cool, I didn't know of that tool's existence. From the code, it looks
like 5.25" formats may already work:
switch(sectors)
{
...
case 9: sectorsT0 = 16; /* 5.25 inch 360k */
...
}
I'll have to play with it when I have a few minutes...
Thanks!
Josh
Re: A poltergeist in my machine?
On 09/07/2015 05:09 PM, Noel Chiappa wrote: And when I put my 'scope lead on the second input... the memory suddenly starts working! Well, I could see that - the added resistance or capacitance or whatever of the probe might have had some effect on a circuit that was right on the edge. But here's where the ghost enters the machine. I pull the 'scope probe . and the memory keeps working! I can power cycle the machine, leave it off for 15 minutes, power it back on - and the memory still works fine! Does anyone have _any_ idea WTF is going on here?!?! I've seen this plenty before. Here are a couple possible causes. 1. There was a conductive hair on the board, and you knocked it off with the probe. 2. There was a bad solder joint and the pressure of the probe broke through the oxide. it will fail again within a day or a couple weeks if this is the cause. This is my highest probability guess. Check that pin and the power and ground pins of that chip for ANY signs of funky soldering. 3. The chip has a bad internal wire bond, and the pressure on the lead made it work. Probably will fail again if this is the case. I've seen some REALLY crazy stuff. The wildest one was a short inside a 2-layer board in a tape controller. it just went catatonic one day. The failure was the master_reset/ line was shorted to ground. I finally tracked it to a 1" length of circuit trace, with no ground really close to it on either side! I cut the trace at both ends and put a piece of wire-wrap wire to tie them together. I peeled the shorted track off the board, and there was NO TRACE whatsoever of what could have been causing the short. I had expected there was a little pit in the epoxy laminate that got plated, but no such thing! Jon
Re: A poltergeist in my machine?
On 2015-09-08 00:09, Noel Chiappa wrote: So I've mentioned how I've seen this wierd behaviour where QBUS memory boards that hadn't been used in a long time didn't work when first plugged in, but started working later. I just had something even weirder happen, and am curious if anyone has an plausible explanations. So I had a dead M8044 (MSV11-D), symptom was that you could write -1 to any location, it read back as 0. Quite repeatable, I can power cycle the machine, take the card in and out, etc, etc. So I throw it on an extender, and start chasing. I have a two instruction loop (write location 0, loop), and I'm watching the data going into the memory chips on the card, and it all looks good. So I add a third instruction (read location 0, after the write), and continue chasing. Data looks good coming out of the chips; then it goes to an octal latch. So I look at the latch enable, and that doesn't look so hot - just a tiny little ugly spike. So I look at the source of that, and it's a D flop. So I look at the D flop's clock input, and it's also a nasty little spike. So that comes from the output of a triple-AND, and so I start looking at the inputs of the 3-AND. And when I put my 'scope lead on the second input... the memory suddenly starts working! Well, I could see that - the added resistance or capacitance or whatever of the probe might have had some effect on a circuit that was right on the edge. But here's where the ghost enters the machine. I pull the 'scope probe . and the memory keeps working! I can power cycle the machine, leave it off for 15 minutes, power it back on - and the memory still works fine! Does anyone have _any_ idea WTF is going on here?!?! I feel like I'm in some sort of AI koan... A bad solder. Physically affecting it could make ti get a good connection. As for memory starting to work better after a while, other things that can have effect are bad capacitors that improve performance after a while. Or another case of bad solder. Heat expansion can also affect bad solders. If you've never actually build electronics this might sound strange, but anyone who have been soldering stuff have seen plenty of this. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: b...@softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol
RE: 21MX proms (per request)
If I were doing it. First you need to find out if it needs OC output. There are many flash parts in surface mount that can have the higher speeds. Add some 74LVC245 to give bus drive needed, also surface mount. All on a little PC board. There would be a lot of wasted space in the flash but what the heck. Put an edge connector on the board to deal with programming. All will fit in a smaller space than the original part. Dwight > From: jw...@classiccmp.org > To: cctalk@classiccmp.org > Subject: RE: 21MX proms (per request) > Date: Mon, 7 Sep 2015 17:20:48 -0500 > > Sean wrote > - > But I do think there's merit in Alexandre's general argument that one could > theoretically emulate the older bipolar PROMs with some mix of modern > components ... and the programmable device would be (a) more easily > obtainable than the old bipolar PROMs and (b) programmable with inexpensive, > contemporary USB device programmers which are definitely big positives. > - > I agree... and have suggestions. Prior art exists, I have seen the arcade > crew use adapters to modify the pins of newer devices to be compatible. > > For loader roms, there are about 10 official images from HP. Plus, most users > (myself for sure) would want around 2 images that are user-created. The > system board supports 4 roms, selectable by front panel. The issue with the > solution the arcade crew has done - the adapters make the new memory devices > too tall to allow clearance above. In chassis after a certain date code there > is a cutout to access the rom sockets without removing the system board. In > those, the clearance issue is the bottom of the memory controller. In prior > revs, the issue is the metal work not providing clearance. I'm not saying a > solution can't be found, but whoever develops such a device needs to be aware > of the clearance issues particularly on the older rev machines. The only > thing I can think of that is likely to have proper clearance is a board that > has pins going to each 4 rom sockets, and the replacement memories are placed > under the board - not on top of it - carefully avoiding existing chips on the > system board. Regardless... whoever designs such a board needs to have a 21MX > in front of them to assure clearances. Also, I'd have to check, but the > precise spacing between the rom sockets may well be different between the M > and E versions. All that being said, it would be nice if the board supported > say 12 images, any 4 of which could be selected as active. > > Now, here's a better take on the problem design a card that goes into a > memory slot. Most all machines have many empty memory slots even when full of > memory. Then a ribbon cable could go down to a paddle board that plugs into > the 4 rom sockets. The board in the memory slot could get power straight from > the backplane. The ribbon/paddleboard relieves the clearance problem. Extra > points if this board also houses 1mw of ram and connects to the memory > controller as usual. Even better points if the board replaces the memory > controller and provides both 1mw ram plus loader roms :> > > For microcode, you'd sure have to find a way to get past the speed issue. > Since the 21MX's take microcode on the cpu board, or a FAB board, or a FEM > board (and the "fab" is very different on the 21MX/M)... you've got a lot of > choices. My bet - the most functional approach is to ignore trying to deal > with microcode prom replacement on the cpu and fab boards. Instead, provide a > single "new" "FEM" board that presents 24 bit wide memory modules of > appropriate speed. Basically, this becomes a WCS board - with modern memory > devices. There's a pretty large number of microcode options that could get > stuffed into such a device. The only down side - FEM boards take an I/O slot, > and one HP OS in particular will have an issue where I/O slots are > pre-allocated and not configurable at sysgen time. Extra points if the board > can also include devices that everyone always puts in - namely a TBG and > HSterm/BACI. Not sure how one could handle the select code logic in one slot, > would probably need paddleboards. But my advice - solve the speed issue first > ;) > > J > > > >
Re: A poltergeist in my machine?
Check if the -5v charge pump is stable and supplying the correct voltage. I recall a problem with a PDP 11/34 and a non-DEC memory board in which the on board pump went slowly bad. Depending on the data content and tolerance margins for the memory chips, we saw very erratic problems. Jerry > On Sep 7, 2015, at 5:09 PM, Noel Chiappa wrote: > > So I've mentioned how I've seen this wierd behaviour where QBUS memory boards > that hadn't been used in a long time didn't work when first plugged in, but > started working later. > > I just had something even weirder happen, and am curious if anyone has an > plausible explanations. > > So I had a dead M8044 (MSV11-D), symptom was that you could write -1 to any > location, it read back as 0. Quite repeatable, I can power cycle the machine, > take the card in and out, etc, etc. > > So I throw it on an extender, and start chasing. I have a two instruction > loop (write location 0, loop), and I'm watching the data going into the > memory chips on the card, and it all looks good. So I add a third instruction > (read location 0, after the write), and continue chasing. > > Data looks good coming out of the chips; then it goes to an octal latch. So I > look at the latch enable, and that doesn't look so hot - just a tiny little > ugly spike. So I look at the source of that, and it's a D flop. So I look at > the D flop's clock input, and it's also a nasty little spike. So that comes > from the output of a triple-AND, and so I start looking at the inputs of the > 3-AND. And when I put my 'scope lead on the second input... the memory > suddenly starts working! > > Well, I could see that - the added resistance or capacitance or whatever of > the probe might have had some effect on a circuit that was right on the edge. > But here's where the ghost enters the machine. > > I pull the 'scope probe . and the memory keeps working! > > I can power cycle the machine, leave it off for 15 minutes, power it back on > - and the memory still works fine! > > > Does anyone have _any_ idea WTF is going on here?!?! > > I feel like I'm in some sort of AI koan... > > Noel
RE: 21MX proms (per request)
Sean wrote - But I do think there's merit in Alexandre's general argument that one could theoretically emulate the older bipolar PROMs with some mix of modern components ... and the programmable device would be (a) more easily obtainable than the old bipolar PROMs and (b) programmable with inexpensive, contemporary USB device programmers which are definitely big positives. - I agree... and have suggestions. Prior art exists, I have seen the arcade crew use adapters to modify the pins of newer devices to be compatible. For loader roms, there are about 10 official images from HP. Plus, most users (myself for sure) would want around 2 images that are user-created. The system board supports 4 roms, selectable by front panel. The issue with the solution the arcade crew has done - the adapters make the new memory devices too tall to allow clearance above. In chassis after a certain date code there is a cutout to access the rom sockets without removing the system board. In those, the clearance issue is the bottom of the memory controller. In prior revs, the issue is the metal work not providing clearance. I'm not saying a solution can't be found, but whoever develops such a device needs to be aware of the clearance issues particularly on the older rev machines. The only thing I can think of that is likely to have proper clearance is a board that has pins going to each 4 rom sockets, and the replacement memories are placed under the board - not on top of it - carefully avoiding existing chips on the system board. Regardless... whoever designs such a board needs to have a 21MX in front of them to assure clearances. Also, I'd have to check, but the precise spacing between the rom sockets may well be different between the M and E versions. All that being said, it would be nice if the board supported say 12 images, any 4 of which could be selected as active. Now, here's a better take on the problem design a card that goes into a memory slot. Most all machines have many empty memory slots even when full of memory. Then a ribbon cable could go down to a paddle board that plugs into the 4 rom sockets. The board in the memory slot could get power straight from the backplane. The ribbon/paddleboard relieves the clearance problem. Extra points if this board also houses 1mw of ram and connects to the memory controller as usual. Even better points if the board replaces the memory controller and provides both 1mw ram plus loader roms :> For microcode, you'd sure have to find a way to get past the speed issue. Since the 21MX's take microcode on the cpu board, or a FAB board, or a FEM board (and the "fab" is very different on the 21MX/M)... you've got a lot of choices. My bet - the most functional approach is to ignore trying to deal with microcode prom replacement on the cpu and fab boards. Instead, provide a single "new" "FEM" board that presents 24 bit wide memory modules of appropriate speed. Basically, this becomes a WCS board - with modern memory devices. There's a pretty large number of microcode options that could get stuffed into such a device. The only down side - FEM boards take an I/O slot, and one HP OS in particular will have an issue where I/O slots are pre-allocated and not configurable at sysgen time. Extra points if the board can also include devices that everyone always puts in - namely a TBG and HSterm/BACI. Not sure how one could handle the select code logic in one slot, would probably need paddleboards. But my advice - solve the speed issue first ;) J
BBC Model B with Raspberry Pi Internals
Bit of a tricky one to google this, so thought I'd consult the list - does anyone know of a documented project that replaced the internals of a BBC Model B with a Raspberry Pi (or MiniITX PC) interfacing with keyboard etc. to bring modern internals with a traditional interface? I don't even know if there is a word for these kind of projects? Thanks, Mark.
A poltergeist in my machine?
So I've mentioned how I've seen this wierd behaviour where QBUS memory boards that hadn't been used in a long time didn't work when first plugged in, but started working later. I just had something even weirder happen, and am curious if anyone has an plausible explanations. So I had a dead M8044 (MSV11-D), symptom was that you could write -1 to any location, it read back as 0. Quite repeatable, I can power cycle the machine, take the card in and out, etc, etc. So I throw it on an extender, and start chasing. I have a two instruction loop (write location 0, loop), and I'm watching the data going into the memory chips on the card, and it all looks good. So I add a third instruction (read location 0, after the write), and continue chasing. Data looks good coming out of the chips; then it goes to an octal latch. So I look at the latch enable, and that doesn't look so hot - just a tiny little ugly spike. So I look at the source of that, and it's a D flop. So I look at the D flop's clock input, and it's also a nasty little spike. So that comes from the output of a triple-AND, and so I start looking at the inputs of the 3-AND. And when I put my 'scope lead on the second input... the memory suddenly starts working! Well, I could see that - the added resistance or capacitance or whatever of the probe might have had some effect on a circuit that was right on the edge. But here's where the ghost enters the machine. I pull the 'scope probe . and the memory keeps working! I can power cycle the machine, leave it off for 15 minutes, power it back on - and the memory still works fine! Does anyone have _any_ idea WTF is going on here?!?! I feel like I'm in some sort of AI koan... Noel
Re: DEC 8235 IC? (repost)
On Mon, Sep 07, 2015 at 11:10:26AM +0200, simon wrote: > As something went wrong in posting this question, I try to repost it > here. please don't be offended by this. > > > - > Hi all. > > is there a list of equivalents for DEC ic's? > I think this was all posted previously but if you missed it. http://www.pdp8online.com/pdp8cgi/query_docs/query.pl?Search=cross
Re: 21MX proms (per request)
On 9/7/15 8:34 AM, Alexandre Souza wrote: sometimes you gotta use flash devices that are WAY faster than common EPROMs... and sometimes that won't work, because the hold time of fast devices is too short.
Re: 21MX proms (per request)
But I do think there's merit in Alexandre's general argument that one could theoretically emulate the older bipolar PROMs with some mix of modern components ... and the programmable device would be (a) more easily obtainable than the old bipolar PROMs and (b) programmable with inexpensive, contemporary USB device programmers which are definitely big positives. Best, Sean On Mon, Sep 7, 2015 at 1:24 PM, Al Kossow wrote: > > > On 9/7/15 8:34 AM, Alexandre Souza wrote: > >> sometimes you gotta use flash >> devices that are WAY faster than common EPROMs... >> >> > and sometimes that won't work, because the hold time of fast > devices is too short. > >
RE: Control Data 160 Ebay
> Anyone here get the Control Data 160 (Ebay 252070822992)? Is any of the 160 software still around (e.g. the FORTRAN compiler?) ?? Original flavor, "A" or "G" model - I don't care. And no, I didn't win the auction :-) Bob Armstrong
Re: 21MX proms (per request)
As I said in the original post I wrote, sometimes you gotta use flash devices that are WAY faster than common EPROMs... 2015-09-07 12:32 GMT-03:00 John Robertson : > On 09/06/2015 2:00 PM, Alexandre Souza wrote: > >> Jay, no one is pin compatible, I always make adapters. But at least I make >> it work :D >> >> 2015-09-06 16:00 GMT-03:00 Jay West : >> >> Alexander wrote... >>> - >>> Intersting to note: many times i have used eproms in place of these >>> proms. >>> Usually, flash parts are faster, so better suited to the task. >>> - >>> >>> Loader roms: >>> You may be able to get by with that on loader roms. I've never found >>> eproms that were functional & pin compatible. What ones did you use for >>> the >>> 1K variety? >>> >>> Microcode: >>> I doubt seriously the eproms would be stable for microcode. HP specs 5ns >>> speed parts for the microcode; what eproms work and can hit those >>> speeds? I >>> suspect this is one of those "might seem to work" but is a really bad >>> idea. >>> >>> J >>> >>> >>> >>> As Jay points out, it is the access speed required by the device you are > substituting the EPROM for a ROM/PROM that counts. In some cases the 100 to > 400ns access speed of EPROMs won't matter (clock of under 1mHz for 400ns > 2716s to around 4mHz for 100ns EPROMs), but if you are running 10mHz or > faster reads then I suspect you will have problems unless you find faster > devices than EPROMs for your substitute ROM/PROM... > > John :-#)# > > -- > John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 > Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) > www.flippers.com > "Old pinballers never die, they just flip out" > >
Re: 21MX proms (per request)
On 09/06/2015 2:00 PM, Alexandre Souza wrote: Jay, no one is pin compatible, I always make adapters. But at least I make it work :D 2015-09-06 16:00 GMT-03:00 Jay West : Alexander wrote... - Intersting to note: many times i have used eproms in place of these proms. Usually, flash parts are faster, so better suited to the task. - Loader roms: You may be able to get by with that on loader roms. I've never found eproms that were functional & pin compatible. What ones did you use for the 1K variety? Microcode: I doubt seriously the eproms would be stable for microcode. HP specs 5ns speed parts for the microcode; what eproms work and can hit those speeds? I suspect this is one of those "might seem to work" but is a really bad idea. J As Jay points out, it is the access speed required by the device you are substituting the EPROM for a ROM/PROM that counts. In some cases the 100 to 400ns access speed of EPROMs won't matter (clock of under 1mHz for 400ns 2716s to around 4mHz for 100ns EPROMs), but if you are running 10mHz or faster reads then I suspect you will have problems unless you find faster devices than EPROMs for your substitute ROM/PROM... John :-#)# -- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) www.flippers.com "Old pinballers never die, they just flip out"
Re: DEC Alpha 3000 Model 600
I have a 3000/400 and I was never able to get 8.3 to install on it ... I don't think I was ever able to get it to even boot from the 8.3 media (with most recent firmware) ... I just dropped back to V7.3 and it works great. Best, Sean On Mon, Sep 7, 2015 at 9:48 AM, Mark Wickens wrote: > I was quite surprised about 8.3 supporting the DEC 3000/600 AXP, however > looking at the Quickspecs you appear to be right. > > http://www8.hp.com/h20195/v2/GetPDF.aspx%2Fc04154442.pdf > > However, I don't see any Turbochannel graphics adapters listed as > supported, only the following: > > Graphics Options > PBXGK > ELSA/GLoria Synergy+ graphics option that provides 2D acceleration for > supported PCI-based > Alpha Workstations and Servers. > PBXGD > PowerStorm 300/500 graphics option that provides 3D acceleration or 3D > acceleration with > stereo viewing capabilities for supported PCI-based Alpha Workstations and > Servers. > PBXGF > 3DLabs OXYGEN VX1 graphics option that provides 2D acceleration for > supported PCI-based > Alpha Workstations and Servers. > PBXGG > ATI RADEON 7500 2D and 3D, PCI and AGP graphics option > > So you might be out of luck on that front. > > Mark. > > > > On 07/09/15 10:16, Rod Smallwood wrote: > >> I thought it might be nice to have a DEC based graphics work station. >> I had the Alpha, a high res monitor and the Hobbyist Media CD for >> ALPHAVMS 8,3. (yes the system supports 8.3) >> SFSG .. So CD in the drive and switch on. First a nice colour graphics >> demo/test. >> Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD >> drive shows as DKA400 just where it should be. >> >> So Boot DKA400: and off we go. After a while a menu appears from which >> you can load layered products you need. >> It gets part way through the load and falls over with a data error. The >> cd is a real bought and paid for Media CD and is not a copy. >> >> Before I do a lot of tedious emaling (HP have taken the Hobbyist program >> in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? >> >> Regards >> Rod >> >> >> >> >
Re: DEC Alpha 3000 Model 600
Its got a PMAGB-B fitted in Turbochannel slot1 as per the 3000 600 user guide page 2-12 fig 2-8 Regards Rod On 07/09/2015 14:48, Mark Wickens wrote: I was quite surprised about 8.3 supporting the DEC 3000/600 AXP, however looking at the Quickspecs you appear to be right. http://www8.hp.com/h20195/v2/GetPDF.aspx%2Fc04154442.pdf However, I don't see any Turbochannel graphics adapters listed as supported, only the following: Graphics Options PBXGK ELSA/GLoria Synergy+ graphics option that provides 2D acceleration for supported PCI-based Alpha Workstations and Servers. PBXGD PowerStorm 300/500 graphics option that provides 3D acceleration or 3D acceleration with stereo viewing capabilities for supported PCI-based Alpha Workstations and Servers. PBXGF 3DLabs OXYGEN VX1 graphics option that provides 2D acceleration for supported PCI-based Alpha Workstations and Servers. PBXGG ATI RADEON 7500 2D and 3D, PCI and AGP graphics option So you might be out of luck on that front. Mark. On 07/09/15 10:16, Rod Smallwood wrote: I thought it might be nice to have a DEC based graphics work station. I had the Alpha, a high res monitor and the Hobbyist Media CD for ALPHAVMS 8,3. (yes the system supports 8.3) SFSG .. So CD in the drive and switch on. First a nice colour graphics demo/test. Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD drive shows as DKA400 just where it should be. So Boot DKA400: and off we go. After a while a menu appears from which you can load layered products you need. It gets part way through the load and falls over with a data error. The cd is a real bought and paid for Media CD and is not a copy. Before I do a lot of tedious emaling (HP have taken the Hobbyist program in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? Regards Rod
Re: Interlisp-D (Medley) "display font" disks for the 1186?
On 9/6/15 2:18 PM, Josh Dersch wrote: Lots of other disks to look through but it's a pain to get them written out; one of those HxC floppy drive emulators is looking rather nice right now :). you might want to see if http://bitsavers.org/bits/Xerox/8010/extractXeroxFloppy.zip can be adapted to the 5" format
Re: 'New' PDP-11 prints
On 9/7/15 5:53 AM, Noel Chiappa wrote: So I have started such a registry. Alan Frisbie has been scanning tons of stuff this past year. I expect that many missing schematics will surface when that is made available.
Re: Control Data ad: Omega 480 "370 compatible alternative" on eBay
On 9/6/15 7:54 PM, Mark Linimon wrote: Does anyone have any idea if this was a real product there are a couple of manuals for it on bitsavers
Re: DEC Alpha 3000 Model 600
I was quite surprised about 8.3 supporting the DEC 3000/600 AXP, however looking at the Quickspecs you appear to be right. http://www8.hp.com/h20195/v2/GetPDF.aspx%2Fc04154442.pdf However, I don't see any Turbochannel graphics adapters listed as supported, only the following: Graphics Options PBXGK ELSA/GLoria Synergy+ graphics option that provides 2D acceleration for supported PCI-based Alpha Workstations and Servers. PBXGD PowerStorm 300/500 graphics option that provides 3D acceleration or 3D acceleration with stereo viewing capabilities for supported PCI-based Alpha Workstations and Servers. PBXGF 3DLabs OXYGEN VX1 graphics option that provides 2D acceleration for supported PCI-based Alpha Workstations and Servers. PBXGG ATI RADEON 7500 2D and 3D, PCI and AGP graphics option So you might be out of luck on that front. Mark. On 07/09/15 10:16, Rod Smallwood wrote: I thought it might be nice to have a DEC based graphics work station. I had the Alpha, a high res monitor and the Hobbyist Media CD for ALPHAVMS 8,3. (yes the system supports 8.3) SFSG .. So CD in the drive and switch on. First a nice colour graphics demo/test. Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD drive shows as DKA400 just where it should be. So Boot DKA400: and off we go. After a while a menu appears from which you can load layered products you need. It gets part way through the load and falls over with a data error. The cd is a real bought and paid for Media CD and is not a copy. Before I do a lot of tedious emaling (HP have taken the Hobbyist program in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? Regards Rod
'New' PDP-11 prints
> On looking at the 11/05S print set online, I think it has most of the > MM11-Y prints Err, make that the 11/04 print set. (Sorry!) The 11/05S has the MF11-U (or would that be MM11-U - I wonder if there's a system to the ME/MF/MM designators). Noel
Re: 'New' PDP-11 prints
> There are a number of things like that (e.g. the H786 power supply for > the BA11-N; [print sets] not available separately [online], but in the > 11/23 FMPS [online], if you know to look there): we ought to produce > some sort of registry, to collect such information in one place. So I have started such a registry. http://ana-3.lcs.mit.edu/~jnc/tech/FMPSOnline.html The concept is that eventually search engines will index that page, so people looking for, say, '"BA11-N" prints' will wind up there, and that page will tell them where to go. I went through a number of PDP-11 print sets which are online (11/05S, 11/23, 11/34, etc) to compile the initial list, but it's just a start. I will add others as I come across them; and if any knows of, or finds, any others (i.e. print sets which _are_ online, but do not show up when looked for in common search engines such as Google), please let me know, and I will add them. > I also found prints for the MF11-U, MF11-W, and MM11-Y; none of which > appear to be on-line (although the MF11-U ones might be in the 11/05S print > set, which ISTR is online). On looking at the 11/05S print set online, I think it has most of the MM11-Y prints, but some pages are apparently missing (it claims), so I think not everything is there. > I don't think the ME11-L prints are online either, but those I have in > my 11/05 print set - I'll have to see if that print set is online > somewhere, no point re-scanning them, if so. So it turns out that these don't seem to be online (in any form), but I have a set of hardcopy in my set "PDP-11/05 Engineering Drawings" (which is different from the 05S set which _is_ online), so I will scan them in and make them available at some point (especially since these seem to be the most common PDP-11 core memory boards). If anyone is desperately searching for them, please let me know, and I will accelerate that process. The situation with the ME11-L/MF11-L/MM11-L (which are all the same boards) is slightly complicated. The board set is called an MM11-L (or -LP, depending); G110+G231+H214 for non-parity, G109+G231+H215+M7529 for parity. The MF11-L seems to be a backplane, plus an MM11-L board set; the ME11-L seems to be an MF11-L in a box. Some CPU backplanes (e.g. the older 11/05's) can also take an MM11-L board set. (The _newer_ 11/05's have backplanes which take an MM11-Y - whether an MM11-L would work in them, I have no idea.) Noel
Re: DEC Alpha 3000 Model 600
Hello Peter Looks like I trod the same path as you. I cleaned the CD with a microfibre cloth. No Joy. I tried every scsi CD drive I have. After setting the jumpers of course. Theres a couple more in the store I'll clean them up and give them a try. The wife and I (retired) are off for a week's KGB (kids gone back) holiday to-morrow, so I'll have a go when I get back. Rod On 07/09/2015 11:37, Peter Coghlan wrote: Rod Smallwood wrote: I thought it might be nice to have a DEC based graphics work station. I had the Alpha, a high res monitor and the Hobbyist Media CD for ALPHAVMS 8,3. (yes the system supports 8.3) SFSG .. So CD in the drive and switch on. First a nice colour graphics demo/test. Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD drive shows as DKA400 just where it should be. So Boot DKA400: and off we go. After a while a menu appears from which you can load layered products you need. It gets part way through the load and falls over with a data error. The cd is a real bought and paid for Media CD and is not a copy. I've come across problems with CD media and/or CD drives in several alphas. Sometimes cleaning the disks well helped (these were original CONDIST CDs too). Other times cleaning the CD drive seemed to help but usually only for a while. More often things quickly got worse and I had to change out the drive. Before I do a lot of tedious emaling (HP have taken the Hobbyist program in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? I'm not sure what you mean here. I have ALPHA VMS 8.3 running on a Digital Personal WorkStation 500a and 8.2 running on an Alphaserver 800 5/500. I'm sure lots of people are running 8.3 on all sorts of Alphas. I have two Dec 3000 Model 600 machines but neither works - the LEDs count down to F0 (IIRC) and that's it. Nothing happens on the console. Both failed in service, one when I was trying to reboot it remotely. I think they used to run V6.2 - they've been out of action a long time. Regards, Peter Coghlan.
Re: DEC Alpha 3000 Model 600
Rod Smallwood wrote: I thought it might be nice to have a DEC based graphics work station. I had the Alpha, a high res monitor and the Hobbyist Media CD for ALPHAVMS 8,3. (yes the system supports 8.3) SFSG .. So CD in the drive and switch on. First a nice colour graphics demo/test. Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD drive shows as DKA400 just where it should be. So Boot DKA400: and off we go. After a while a menu appears from which you can load layered products you need. It gets part way through the load and falls over with a data error. The cd is a real bought and paid for Media CD and is not a copy. I've come across problems with CD media and/or CD drives in several alphas. Sometimes cleaning the disks well helped (these were original CONDIST CDs too). Other times cleaning the CD drive seemed to help but usually only for a while. More often things quickly got worse and I had to change out the drive. Before I do a lot of tedious emaling (HP have taken the Hobbyist program in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? I'm not sure what you mean here. I have ALPHA VMS 8.3 running on a Digital Personal WorkStation 500a and 8.2 running on an Alphaserver 800 5/500. I'm sure lots of people are running 8.3 on all sorts of Alphas. I have two Dec 3000 Model 600 machines but neither works - the LEDs count down to F0 (IIRC) and that's it. Nothing happens on the console. Both failed in service, one when I was trying to reboot it remotely. I think they used to run V6.2 - they've been out of action a long time. Regards, Peter Coghlan.
DEC Alpha 3000 Model 600
I thought it might be nice to have a DEC based graphics work station. I had the Alpha, a high res monitor and the Hobbyist Media CD for ALPHAVMS 8,3. (yes the system supports 8.3) SFSG .. So CD in the drive and switch on. First a nice colour graphics demo/test. Then the nomal system level stuff. >>> prompt, enter SHO DEV and our CD drive shows as DKA400 just where it should be. So Boot DKA400: and off we go. After a while a menu appears from which you can load layered products you need. It gets part way through the load and falls over with a data error. The cd is a real bought and paid for Media CD and is not a copy. Before I do a lot of tedious emaling (HP have taken the Hobbyist program in house) has anybody successfully loaded an Alpha with ALPHA VMS 8.3? Regards Rod
DEC 8235 IC? (repost)
As something went wrong in posting this question, I try to repost it here. please don't be offended by this. - Hi all. is there a list of equivalents for DEC ic's? I've made a mistake in attaching our BA-8 to the PDP8/f and plugged in the ribbon cable connecting connector C and D the wrong way. some magic smoke came loose and there are a few chips broken . by comparing the signals on those connectors, I made a list of suspect chips on which some pins got-15v or +15v... The M8330 board got most of the blast, resulting in 4 burned chips, but other boards could well be affected. --- -- Met vriendelijke Groet, Simon Claessen drukknop.nl
Re: What kind of keyboard is this?
On 07/09/2015 03:16, "Win Heagy" wrote: > I picked this up at Radio Shack about 25-30 years ago and have been > hauling it around ever since. > > http://imgur.com/oNEcRFv,VacFqrY#0 > (There should be two images...a link to the second.) > > It was a surplus thing that RS was selling on the parts wall and I > grabbed on the off chance I'd need it someday. I lost the cardboard > top to the plastic bag it came in, so I know nothing about it. > > Anyone have any idea? That's from a Coleco ADAM: http://www.binarydinosaurs.co.uk/museum/coleco/adam.php -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?
