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2020-01-19 Thread allison via cctalk
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Re: bitsavers is showing down here

2020-01-19 Thread allison via cctalk
a sudden I'm getting email (actually 11 of them) here again? What is going on?? Allison

Re: First Internet message and ...

2019-11-24 Thread allison via cctalk
On 11/24/19 5:07 PM, Murray McCullough via cctalk wrote: > The first Internet message was sent 60 yrs. ago on Nov. 21 between SRI and > UCLA. It was one-to-many, or more accurate one-to-one, but the world today > is many-to-many though cctalk runs through a moderator. The Internet > democratizes

Re: Who changed the gravitational constant (Dec pdp11 stuff)

2019-11-22 Thread allison via cctalk
On 11/22/19 2:36 PM, Al Kossow via cctalk wrote: > > > On 11/22/19 11:16 AM, Chris Zach via cctalk wrote: >> That >> could be a problem if I want to re-load Cobol 81 onto this RSTS/E system. > > weren't RL01s usable in an RL02? > > No for RL. You, maybe thinking RX01/02 interchangeability.

Re: several items for sale and a note.

2019-11-22 Thread allison via cctalk
I can't it's in the way. Space and all are the reasons. You can get the pin out for both ends from the manuals and the prints. If you get it wrong things just don't work but no breakage. On 11/22/19 3:42 PM, Henk Gooijen wrote: >   > >   > > *Van: *allison via cct

several items for sale and a note.

2019-11-22 Thread allison via cctalk
, with at least 1 floppy and working. Allison

Re: Got it: RD54 formatting write protect solved

2019-11-20 Thread allison via cctalk
I Use a spare MicroVAX-2000, the system roms ahve good diags and formatter for floppies and HD. Allison On 11/20/19 1:14 AM, Jacob Ritorto via cctalk wrote: > Nice going! > > Related story: > I had probs formatting a maxtor 11xx (not an actual xt-2190 but really close) >

Re: RX01 wants

2019-11-17 Thread allison via cctalk
On 11/17/19 2:17 PM, Fritz Mueller via cctalk wrote: > Hi Paul, > >> I think you mean RX11. > > Ah, yes — I typo’d that, thanks! > >> Isn't the BC05L-15 folded up in the case? Or did they put a short one to the >> back of the box? I can't remember now. > > I’ll have a look to remind myself

Re: Quantum 2080 and 540 service manuals

2019-11-17 Thread allison via cctalk
only fire the thing up about once every 5 years or so... > > --Chuck > Mine are in the once a year for the lest frequently used and a few at least once a week. I find them bullet proof. Allison

Re: Quantum 2080 and 540 service manuals

2019-11-15 Thread allison via cctalk
d uVAX2000 and swap file disks on uVAXII (61K blocks is more than enough swap space) for VMS5.44. I've not had stiction problems... likely because I have spares! Its a Murphy's law thing. Allison

Re: TI994/A Power Supply

2019-11-15 Thread allison via cctalk
ocket on the other two machines, but with the upper two pins >> (intentionally) missing. >> The PSU board inside appears to be a switcher, but I'd be inclined to >> agree with Allison that it's intended to run from low-voltage AC (I've >> put the machine back together now, but just re

Re: TI994/A Power Supply

2019-11-15 Thread allison via cctalk
t; convinced, either. The two-pin socket is actually the same as the > four-pin socket on the other two machines, but with the upper two pins > (intentionally) missing. > > The PSU board inside appears to be a switcher, but I'd be inclined to > agree with Allison that it's i

Re: Question about modems

2019-11-13 Thread allison via cctalk
and age. I'd bet more than half here never used a modem or have not in more than 15-20 years. Allison

Re: Question about modems

2019-11-13 Thread allison via cctalk
ate, parity and word length to match the modem (is it has at or similar protocal) and also to match the other end (usualy the same). My experience is fairly recent as WSTD.Cm still support dial-in terminal or SLIP. there are also synchronous modems, different critter. Allison > Jim, I'd try reachi

Re: TI994/A Power Supply

2019-11-11 Thread allison via cctalk
ct the two pin console to 100 or 230V without the transformer. Or you will have a fire hazard! Allison

Re: Andromeda disk controller diag/format disk found

2019-11-05 Thread allison via cctalk
structure, and bootable on both PDP-11 and uVAX-II. Really? I'd like to know how that was done as they are not the same. You mean readable not bootable maybe? Allison > let me know where to send it. > > Jon > >

Re: TI994/A Power Supply

2019-11-04 Thread Allison Parent via cctalk
Do better research. The power is external transformer and internal low voltage switch mode power supply. Having carts is good. The bonus is an expansion box with floppy and cards. FYI back when ratshack sold both. Allison IPhoned it in! > On Nov 4, 2019, at 12:59 AM, Kevin Parker

Re: 50 yrs. ago today

2019-10-30 Thread allison via cctalk
On 10/30/19 10:18 AM, Liam Proven via cctalk wrote: > On Wed, 30 Oct 2019 at 03:34, allison via cctalk > wrote: > >> >> The whole story of what was going on was far more complex and interesting. > > Conceded. > >> Funny thing was DECnet was in 1983 the

Re: 50 yrs. ago today

2019-10-29 Thread allison via cctalk
he DARPA/Arpanet. The network wars were warming up about then (1982ish) and it would take till the late 80s early 90s for IP to win that war. The big explosion was WWW. Other names or routable networks, Banyan vines, and IPX come to mind besides DECNET Phase III and IV. Allison

Re: 50 yrs. ago today

2019-10-29 Thread allison via cctalk
I thought that was the first wide area network that also used radios for links. Generally "first" works if your specific enough. But in the old Arpanet days if you said that on a list and were incomplete or wrong you got your head handed to you upside down. Sometimes gently,

Re: Introduction and need help bringing some pdp11's back

2019-10-29 Thread allison via cctalk
alone. I was lucky being both Ex-Digit (former dec) and in the immediate area so finding stuff years ago was easy and free. Long since dried up. best advice is get DOCs, as much and varied of the QBUS PDP-11 family and the various packaged systems as you can find or on line. Oh the nasty part, you will have to actually read them to find a lot of the details. Allison

Re: Introduction and need help bringing some pdp11's back

2019-10-29 Thread allison via cctalk
On 10/29/19 2:13 PM, Pete Turnbull via cctalk wrote: > On 29/10/2019 16:28, Chris Zach via cctalk wrote: >> The real problem is I'm trying to put an RQDX3 in there instead of the >> ESDI controller so I can boot off RX50's. And I have no idea which way >> all the various ribbon cables are supposed

Re: Nuke Redmond!

2019-10-07 Thread allison via cctalk
not meet the terms of service and refuses to go there. Since schools and Uni's all seem to be M$ based maybe the terms of service are in effect there. And tubes... I'm like one of the few here that knows how to design with them because I did. Allison On 10/7/19 10:54 AM, Ethan O'Toole via cctalk

Re: fix? Repair? or leave alone? http://rcade.camden.rutgers.edu/2020symposium.html

2019-09-27 Thread allison via cctalk
rds and attention than the poorly written mental spew that pretends to be intellectual. If I were grading their work it would be a D- and a fail is less significant. The scam is eating your time which is worth something with nothing in reward. Lets call it 5 minutes you will never get back. Allison

Re: phone systems, old and less-old

2019-09-19 Thread allison via cctalk
gt; > From what I've heard and read, where a 25 pair cable is concerned, it's > slate, not gray. > > > Grey or slate for outer jacket and the listed colors for wire pairs or groups of pairs in the cable. Allison

Re: Vulnerabilities (Was: [Simh] Fwd: VAX + Spectre

2019-09-17 Thread allison via cctalk
r all wasn't it Vonada that indicated computer are at best partially tested? Allison

Re: [Simh] Fwd: VAX + Spectre

2019-09-17 Thread allison via cctalk
a question of the number of angels that can dance on the point of a pin. But could GCC compile code that has system access to do nasties is a more complex question. Then again how does it get system prives to start with? First VAX represents more than a dozen different implementations from the 780 though the many CMOS versions so what might be an issue for one is likely not for another. The other half is the OS in use may be sufficiently able to keep rogue processes confined. Of course there are the LAVC and bus connected multi-cpu clustered systems. In the end its mostly meaningless as the only reliable way to take a VAX down is trip on the power cord, assuming you can get to it. Allison

Re: RL02s available

2019-08-22 Thread allison via cctalk
On 8/22/19 12:46 PM, William Donzelli via cctalk wrote: > I have a pair of RL02 drives available, and can bring them to VCFmw in > about three weeks. Pretty cheap. Untested. > > Contact me off list. > > -- > Will > Where are they now? Allison

Re: GW-DEC-1: A New DEC Prototyping Board

2019-08-16 Thread allison via cctalk
stable, maybe. I had to retire that machine after about 2 years it was so flakey due to that. By then the suspect boards were retired and never used again. Looking back and having it to look at part of the issue was crappy gold plating (looked good) and also some of the sockets did not have a hard wipe or high spring tension both of which were likely causative. I've not see that anywhere else. Dec connector blocks are hard wipe and very good at what they do, make a connection. Even tin plate seems to be no trouble at all. Allison

Re: XXDP on PDP-11/03

2019-08-14 Thread Allison Parent via cctalk
IPhoned it in! > On Aug 14, 2019, at 2:19 PM, Noel Chiappa via cctalk > wrote: > > From: Jonathan (systems_glitch) > Yep, fun times on LSI-11/2! Heh, this one was _utterly trivial_ compared to the 'must have working memory at 0 or ODT won't start'! (I don't think I've ever seen that one

Re: Ill NLS MS-230 ---manual!

2019-08-01 Thread allison via cctalk
On 7/29/19 10:30 PM, Jim Brain via cctalk wrote: > On 7/29/2019 9:24 PM, allison via cctalk wrote: >> >> Since you replaced the batteries did you check the fuse? > Yep, good. >> Also the 4066s > Hmm, all mine are soldered in.  Do you suggest I desolder and che

Re: Ill NLS MS-230

2019-07-30 Thread allison via cctalk
l but there are many parts of the regulators that can. Hint do yourself a favor and expand and print the schematic as at least B if not D size. it will be easier to follow. Allison

Re: Ill NLS MS-230

2019-07-30 Thread allison via cctalk
On 7/29/19 10:30 PM, Jim Brain via cctalk wrote: > On 7/29/2019 9:24 PM, allison via cctalk wrote: >> >> Since you replaced the batteries did you check the fuse? > Yep, good. THe batteries are charged? (about 6.6V or more full charge) >> Also the 4066s > Hmm, all mi

Re: Ill NLS MS-230

2019-07-29 Thread allison via cctalk
the CRT. Check the heater pins with a multimeter to see if its open (unplug it as there is a transformer winding across it). Mine needed one when I got it but they were available then (1977) from NLS. Side effect of the hammer mechanic owner. Now it would be a hunt though old tube brokers. Allison

Re: Scanning question (Is destruction of old tech docs a moral crime?)

2019-07-22 Thread allison via cctalk
omes first but a copy in some usable if not the best form is still better than "I hear there is a book about it". Based on that I've taken books and manuals that I know more exist and shredded them to make copies or scan. ON preservation: Me I'd love to know what the engineering library (ML4-1) of DEC a massive quantity of aperture cards went to. Generally If I needed or wanted it it was available (during my time at DEC) if I had a valid part or model number. To me that was a preserve at all costs including the systems used to retrieve and print. Allison

Re: Anyone have any info on the obscure MX11 PDP-11 option?

2019-06-24 Thread allison via cctalk
erence to the KT1-11B Memory address extension (CPU option). Allison

Re: Wanting to get my first classic computer

2019-06-19 Thread allison via cctalk
rn PC like. I'd add anything you know about PCs is unlikely to be helpful at best and can lead one down an unproductive path as PCs and most older non-PC machines tend to not be similar (other than being a computer). Allison

Re: M7264 Troubleshooting

2019-06-09 Thread allison via cctalk
On 06/08/2019 10:37 PM, Noel Chiappa via cctech wrote: > > From: Allison > > > ODT for the two systems are very different. .. KDF-11 the ODT is part > > of the higher level code. The larger cards (11/23 and 23+) boot to > > resident (ep)rom. > > A

Re: M7264 Troubleshooting

2019-06-08 Thread allison via cctalk
he difference between the restart/run between the two. If memory serves The KDF11 requires enough ram to have a few of the key addresses in low memory operational. There is a lot going on with the LSI-11 as it also initializes internal and external RAM. At the time memory nearly always dynamic and require refresh cycles before it is "on line". The manuals detail it well. Allison > Noel >

Re: M7264 Troubleshooting

2019-06-08 Thread allison via cctalk
ector (HEX width). Use care, read up, and have fun. Allison

Re: Modems and external dialers.

2019-06-05 Thread allison via cctalk
Re: Modems and external dialers. > > On 6/4/19 8:30 PM, allison via cctalk wrote: >> Keep in mins the hardware for auto dial required some for of micro and >> that was a post 1974 thing for the most part. > > Why did it require a micro? Could the host not perform the functio

Re: Modems and external dialers.

2019-06-04 Thread allison via cctalk
at was 1978ish. A modem that could dial was maybe 1983-5 or so at affordable prices (under 300$) for 300 baud. Allison

Re: 11/93 Rebuild - SCSI HD now boots RT11

2019-05-31 Thread allison via cctalk
On 05/31/2019 03:27 PM, Rod Smallwood via cctalk wrote: > > On 31/05/2019 19:40, allison via cctalk wrote: >> On 05/31/2019 02:04 PM, Rod Smallwood via cctalk wrote: >>> Hi >>> >>> Well I now have a bootable SCSI drive on my 11/93. Its not RSTS/E

Re: 11/93 Rebuild - SCSI HD now boots RT11

2019-05-31 Thread allison via cctalk
using the suggested secondary controller address. Then use the OS dependent tools for installing additional drives. Allison

Re: M7264 Troubleshooting

2019-05-29 Thread allison via cctalk
elves. The contemporary memory cards did not self refresh and used the early 4K or 16K 16pin devices. Memory used for 11/23 (f11) and later by then self refresh on the local card level was the norm and cut bus traffic load. Many of the functions were replicated as part of the T-11 CPU. > I'

Re: Possible PUTR bug?

2019-05-11 Thread allison via cctalk
y new hardware that is not neutered. Mini/Micro-ITX board with atom or celeron CPUs (really all that's needed) are cheap and easily built up into linux boxes or if you must any of the older 32 bit winders incantations. Allison ]On 05/11/2019 11:22 AM, Douglas Taylor via cctech wrote: > I un

Re: How were 32-bit minis built in the 70s/80?

2019-05-11 Thread allison via cctalk
On 05/11/2019 09:30 PM, ben via cctalk wrote: > On 5/11/2019 6:28 PM, allison via cctalk wrote: > >> Not all were 74181 based, Thats an early 1972 part and but 1975 it was >> already getting old though useful as it evolved to 74S and 74F series. >> The 82s100

Re: How were 32-bit minis built in the 70s/80?

2019-05-11 Thread allison via cctalk
On 05/11/2019 07:14 PM, Warren Toomey via cctalk wrote: > I'm building my own 8-bit CPU from TTL chips, and this caused me to think: > how were 32-bit minis built in the late 70s and early 80s? In particular, > how was the ALU built? I know about the 74181 4-bit ALU, and I know (from > reading A

Re: RT-11 doesn't recognize my 3.5" floppy

2019-05-07 Thread allison via cctalk
l distribution board (m8058) out of BA123 to hook up RD52, RX33, RX23 and never had issues due to addressing devices under RT11. Is it possible you have a interrupt grant gap between the various boards and the RQDX?  That would cause a hang. If you successful it makes using PUTR easier though RX50 works for that too just smaller. Allison

Re: Excessive amount of time in interrupt stack mode

2019-04-30 Thread allison via cctalk
kely culprit is ethernet. Try > disconnecting ethernet, perhaps the AUI, too, and see if it's any > different. > > John Last time I'd seen that another system on the network was jabbering...  it had a bad DEQNA. Allison

Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/29/2019 11:37 AM, Jon Elson wrote: > On 04/29/2019 06:47 AM, allison via cctech wrote: >> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: >>> On 4/28/19 6:27 PM, Ray Jewhurst wrote: >>>> I already have a Hobbyist License.  I am just interested in >>

Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/29/2019 09:41 AM, Paul Koning wrote: > >> On Apr 29, 2019, at 7:47 AM, allison via cctech >> wrote: >> >> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: >>> On 4/28/19 6:27 PM, Ray Jewhurst wrote: >>>> I already have a Hobbyist Lice

Re: Greetings

2019-04-29 Thread allison via cctalk
On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: > On 4/28/19 6:27 PM, Ray Jewhurst wrote: >> I already have a Hobbyist License.  I am just interested in >> experimenting with different OSes and different versions of OSes. > > ACK > > I don't know what VAX hardware VMS 1.5 supported, what

Re: What do to with an Internet-connected PDP-11?

2019-04-29 Thread allison via cctalk
6 unix or maybe RSX might be a better choice for anything networking.  An OS that supports swapping and maybe virtual memory would help even at the expense of speed.  Networking does require some level of multitasking as well so RT-11/FB is likely more useful than vanilla RT. Allison

Re: Televideo 925 character rom dump

2019-04-24 Thread allison via cctalk
On 04/24/2019 08:47 PM, Al Kossow via cctalk wrote: > > On 4/24/19 5:46 PM, allison via cctalk wrote: > >> The 8049 is readable just like the 8048 save for 2k device.  I worked >> for NEC back then and had access to intel parts too. > is that true for "HC" parts o

Re: Televideo 925 character rom dump

2019-04-24 Thread allison via cctalk
ternal rom/eprom the test for that is pin7 EA, if EA is high then program access is external.  it was very common to use any 8048/49 in place of 8035/39 in a system and often cheaper due to misprogrammed parts that can still be used with external rom. FYI there are no "protection bits". Allison

Re: PDP-11/83 w/FPU?

2019-04-18 Thread allison via cctalk
On 04/18/2019 04:19 PM, Noel Chiappa via cctalk wrote: > > From: Allison > > > Experience is that an 11/23 or 23+ will run V6 as mine does. > > What changes did you make to get it to run? (I assume the stock binary > wouldn't run.) > > Noel Th

Re: PDP-11/83 w/FPU?

2019-04-18 Thread allison via cctalk
that an 11/23 or 23+ will run V6 as mine does.  REason it does is V6 does not require I support The usual issue is not FPU for Unix as questioned but if there is a need for I spaces.  The 11/23 (f11 chipset) does not support that but the J11 (11/73 and 11/83) do support that.  I have a 11/73 so I could run BSD and a few others commonly found that require I support. There may be other versions that place less of a burden on requiring I However I've not encountered a need for FPU connected to OS.  Also the assumption for many unix is MMU support but not all DEC OS have that requirement. Allison

Re: Adding floppy drives to my PDP-11?

2019-04-13 Thread allison via cctalk
s the hot item as would be a RX50 or 1.44 3.5" floppy or all three as it can interface not less than two floppy drives. Allison

Re: The story of... PDP-1

2019-04-02 Thread allison via cctalk
re regularly for cheap fuel for the 150 and the mid summer hit and miss engine show. For me all of this and the mixx is anything but history as it was where I worked for 10 years and around the area long after. Allison >> On Apr 1, 2019, at 5:23 PM, Liam Proven via cctalk >> wrote:

Re: Refillable spray can

2019-03-24 Thread allison via cctalk
paint well a drier and regulator as best pressures are down around 20 to maybe 40psi. With lower pressure the need for additional tank and all not required.  I do a lot of work with an airbrush as its small volume and you can do fine detail work very well. Airbrushes also need lower volume of air so lower pressures require the regulator. Allison

Re: Thinking about PDP11 PC05 Emulation

2019-03-11 Thread allison via cctalk
file with all the common tapes on it. for loading into a 8 via a loader device. I've not done this for PDP-8 or 11 but I can easily envision it.  The Arduinos are often fast enough if not faster than the host so speed is not an issue. Allison

Re: Pioneers of computing

2019-03-11 Thread allison via cctalk
with TMS1000, F8, and 8048 that would put all of the computer functions on one chip. The 8080/6502/6800/and friends were all multichip to realize even a simple functioning system. Oddly science fiction had computers but calculators were not part of their forecast..  I know of only one example that had pocket/portable calculator. Allison

Re: 11/70 - original or 570 model more desirable?

2019-01-31 Thread allison via cctalk
that might be scrapped.  In itself thats important and it would be model independent. Being a Qbus 11 collector there are still critters I might gather.  Allison

Re: PDP-11 ID page, a few images needed

2019-01-24 Thread allison via cctalk
On 01/24/2019 10:38 AM, Ethan Dicks wrote: > On Wed, Jan 23, 2019 at 8:41 PM Allison Parent via cctalk > wrote: >> On Jan 23, 2019, at 8:43 PM, Paul Koning via cctalk >> wrote: >>> On Jan 23, 2019, at 5:37 PM, Noel Chiappa via cctalk >>> wrote: >>>

Re: PDP-11 ID page, a few images needed

2019-01-23 Thread Allison Parent via cctalk
the lsi11 are The same right down to the handle. The prime difference Is the heath backplane is smaller number of slots and user assembled along with the case and power supply. The memory, io, and disk system was all heath and could be used in dec backplanes and DEC cards in heath. The heath disk w

Re: PDP-11 Memory

2019-01-12 Thread allison via cctalk
On 01/12/2019 05:03 PM, Bill Gunshannon via cctalk wrote: > On 1/12/19 4:30 PM, allison via cctalk wrote: >> On 01/12/2019 04:14 PM, Bill Gunshannon via cctalk wrote: >>> On 1/12/19 2:25 PM, allison via cctalk wrote: >>>> On 01/12/2019 12:29 PM, Pete Turnbull via cct

Re: PDP-11 Memory

2019-01-12 Thread allison via cctalk
On 01/12/2019 04:14 PM, Bill Gunshannon via cctalk wrote: > On 1/12/19 2:25 PM, allison via cctalk wrote: >> On 01/12/2019 12:29 PM, Pete Turnbull via cctalk wrote: >>> On 12/01/2019 01:24, Zane Healy via cctalk wrote: >>> >>>> I’m pretty sure you cou

Re: PDP-11 Memory

2019-01-12 Thread allison via cctalk
mostly 11/23(various flavors) based but have the 11/2 board and LSI-11.   Even An H11 backplane with LSI-11 and Heath ram and IO. While there were many sold systems and a larger number of supported systems Qbus PDP-11 was more mix and match than most any and the early Qbus microVAX series did that for a while.  Allison

Re: PDP-11 Memory

2019-01-12 Thread allison via cctalk
edestal. But even the > one that shows rack mount installation is only BA23. > > bill And my older manuals don't show anything other than BA11, later manuals are useful for that reason. Allison

Re: PDP-11 Memory

2019-01-11 Thread allison via cctalk
On 01/11/2019 02:32 PM, Noel Chiappa via cctalk wrote: > > From: Allison Parent > > > Most Probable cause is interrupt grant is broken. > > The only -11 that complains if the grant chain is broken that I know of is > the /34 (maybe the /04 too). I certainly have a

Re: PDP-11 Memory

2019-01-11 Thread Allison Parent via cctalk
Most Probable cause is interrupt grant is broken. For most microspheres backplanes the first three slots are different than remaining. Phoned this in! On Jan 11, 2019, at 12:28 PM, Bill Gunshannon via cctalk wrote: Well, it has been so long since I had to put together an entire system I

Re: Netronics EX85 BASIC dump

2019-01-10 Thread Allison Parent via cctalk
Looked... Hartetechnologies.com Look in Netronics folder. Phoned this in! On Jan 10, 2019, at 8:55 PM, Allison Parent wrote: Seriously? You haven’t looked. Start with bitsavers, then Dave dunfelds old computers. That’s from memory as I’m on the phone. iPhoned this in! On Jan 10, 2019

Re: Netronics EX85 BASIC dump

2019-01-10 Thread Allison Parent via cctalk
Seriously? You haven’t looked. Start with bitsavers, then Dave dunfelds old computers. That’s from memory as I’m on the phone. iPhoned this in! On Jan 10, 2019, at 6:25 PM, Brad H via cctalk wrote: Wondering if anyone has any EPROM dumps of Netronics' BASIC for the Explorer/85. I'd like

Re: Bogus "account hacked" message

2019-01-08 Thread allison via cctalk
On 01/08/2019 04:29 PM, Grant Taylor via cctalk wrote: > On 01/08/2019 02:09 PM, allison via cctalk wrote: >> Its actually funny.  The password given is three yahoo (groups) hacks >> ago (about 10 years) but the email address used was a public one way >> reflector (

Re: Bogus "account hacked" message

2019-01-08 Thread allison via cctalk
On 01/08/2019 03:41 PM, Grant Taylor via cctalk wrote: > On 01/08/2019 01:25 PM, John Rollins via cctalk wrote: >> That they found an address used only for a certain mailing list makes >> it more interesting. Doing a quick Google search it looks like the >> list archives can be searched through,

Re: so far off topic - capatob - saratov2 computer Russsian pdp8?

2019-01-07 Thread allison via cctalk
On 01/07/2019 07:25 PM, ben via cctalk wrote: > On 1/7/2019 8:20 AM, allison via cctalk wrote: > snip... >> made though more likely 74F, AS, or LS variant and of course CMOS 74ACT >> (and cmos friends) as I just bought a bunch.  Dip is getting harder to >> get but >

Re: so far off topic - capatob - saratov2 computer Russsian pdp8?

2019-01-07 Thread allison via cctalk
On 01/07/2019 09:51 AM, Peter Corlett via cctalk wrote: > On Sun, Jan 06, 2019 at 02:54:08PM -0700, ben via cctalk wrote: >> On 1/6/2019 12:24 PM, allison via cctalk wrote: >>> The small beauty of being there...   FYI back then (1972) a 7400 was about >>> 25 cents and

Re: off topic - capatob - saratov2 computer Russsian pdp8? HELP

2019-01-06 Thread allison via cctalk
ere were more  Z80 based machines (TRS-80 alone exceeded 250,000) than PDP-11. History guys, we are about history! Allison

Re: off topic - capatob - saratov2 computer Russsian pdp8? HELP

2019-01-06 Thread allison via cctalk
ems like DEC10 and other persisted for a while.  Also part of it was IO codes for the EBDIC, Flexowriter, ASr33 (8level vs Baudot), and CRT terminals emerging with mostly IBM or ANSI. I am somewhat DEC and personal computer (pre IBM PC) centric on this as they were he machines I got to see and work with that were not in rooms with glass and white coated specialists. Allison

Re: off topic - capatob - saratov2 computer Russsian pdp8? HELP

2019-01-06 Thread allison via cctalk
parts was nearly that of a new truck (2100$)!.   Compared the basic logic of the 8e (only three boards of SSI TTL) core/ram was the show stopper.  About 7 years later a 8K8 S100 ram was about  (early 1979) 100$, by 1980 64kx8 was 100$.   Moore's law was being felt. The small beauty of being there...   FYI back then (1972) a 7400 was about 25 cents and 7483 adder was maybe $1.25.  Least that's what I paid. Allison

Re: music dec tapes? (paper)

2019-01-04 Thread allison via cctalk
On 01/03/2019 11:15 PM, Kyle Owen wrote: > On Thu, Jan 3, 2019, 17:48 allison <mailto:allisonporta...@gmail.com> wrote: > >> I don't think this album has been forgotten; I have a copy, and I >> know others with copies, too. It seems as though "Unplayed

Re: music dec tapes? (paper)

2019-01-03 Thread allison via cctalk
On 01/03/2019 05:22 PM, Kyle Owen wrote: > On Thu, Jan 3, 2019 at 3:29 PM allison via cctech > mailto:cct...@classiccmp.org>> wrote: > > Those were likely with a PDP12 or LAB-8 with DAC board.  The code > actually is a roughly > digital version of tones in 10 o

Re: music dec tapes? (paper)

2019-01-03 Thread allison via cctalk
uential words (waveforms) to the DAC.  Before that it was done setting link and clearing link bit with a timing routine. There was a version of that also for MINC-11 and I've see variant back when that used multiple DAC cards for stereo or multiple voices. It was also a thing for the S100 8080/z80 set (using a DAC) and many other systems (Kim-1, Apple, Cosmac, Commodore). Of course everyone here forgets the First Philadelphia Computer Music Festival on vinyl from '78 with samples of computer played music.  I run my copy on occasion just to remember being there. Allison

Re: Origin of 'Straight 8' name

2018-12-21 Thread allison via cctalk
One of the DEC history things about the era was often engineering went may different directions at the same time  making for a plethora of systems that were or mostly PDP-8ish like the PDP-12 that was PDP-8 and LINK.  RICM has a really pretty one. Allison

Re: Origin of 'Straight 8' name

2018-12-21 Thread allison via cctalk
wa.edu/~jones/pdp8/ Allison

Re: Which DEC machine made use of th pre Flip-Chip board?

2018-12-21 Thread allison via cctalk
quad full adder and 74181 ALU) in about 10 years.  The computer industry were the early consumers. Allison

Re: flashx20 - Floppy and screen for the Epson HX-20

2018-12-17 Thread allison via cctalk
On 12/16/2018 11:39 PM, Will Cooke via cctalk wrote: > > > > > > On December 16, 2018 at 11:14 PM allison via cctalk > wrote: >>> On Sun, 16 Dec 2018, Norbert Kehrer via cctalk wrote: >>>> I have not tested it, but I suppose, that also the PX-8 and

Re: flashx20 - Floppy and screen for the Epson HX-20

2018-12-17 Thread allison via cctalk
On 12/16/2018 11:56 PM, Fred Cisin via cctalk wrote: >> On December 16, 2018 at 11:14 PM allison via cctalk >> wrote: >>> >>>> On Sun, 16 Dec 2018, Norbert Kehrer via cctalk wrote: >>>>> I have not tested it, but I suppose, that also the PX-8

Re: Core memory emulator using non volatile ram.

2018-12-16 Thread allison via cctalk
well as it can help heat the room and also power as in makes the meter spin. So much lathering and speculation about what and how.  When the point is totally missed. Allison

Re: Core memory emulator using non volatile ram.

2018-12-16 Thread allison via cctalk
torage problem such as replicating a RF/DF32 multihead disk. The cycle life is a limiting factor for things like swapping drums/disks but for something that's read mostly its ok. Core is RAM, and not serial anyway. Allison

Re: Core memory emulator using non volatile ram.

2018-12-16 Thread allison via cctalk
On 12/16/2018 10:07 PM, ben via cctech wrote: > On 12/16/2018 8:00 PM, allison via cctech wrote: > >> In the end, current generation CMOS ram is the easy out, battery is >> small, cost is small,  and >> produces much less of the heat that is killer to systems.  

Re: flashx20 - Floppy and screen for the Epson HX-20

2018-12-16 Thread allison via cctalk
xternal drives. > There are several software packages on the net to do the fake of the disk via serial and manuals of the system to explain the format.  Likely that software could do the earlier HX20 (and friends) with minor tweaks. Allison

Re: Core memory emulator using non volatile ram.

2018-12-16 Thread allison via cctalk
for Omnibus with battery back up that is fine.  Don;t get wraped around the axle about RMW as any sufficiently fast ram can do that without wearout.  And compared to core it doesn't take much speed. EEprom and Flash work fine for read mostly disks or disk simulators. Allison

Re: PET peve thing... Editors

2018-12-13 Thread allison via cctalk
On 12/13/2018 12:05 AM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> On 12/12/2018 03:04 PM, Sean Conner via cctalk wrote: >>> It was thus said that the Great allison via cctalk once stated: >>>> The whole thing c

Re: PET peve thing... Editors

2018-12-12 Thread allison via cctalk
On 12/12/2018 03:04 PM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (

Re: PET peve thing... Editors

2018-12-12 Thread allison via cctalk
On 12/12/2018 03:08 PM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (

Re: P112 redesigned for Z280? terminal

2018-12-12 Thread allison via cctalk
80char display that is a subset of Vt100/Ansii. Its not 99cents but at list prices under 7$ Monitor and keyboard not included. Or you can use an arduino with a 40char by 4 line LCD. Allison

Re: PET peve thing... Editors

2018-12-12 Thread allison via cctalk
On 12/12/2018 02:49 PM, emanuel stiebler via cctalk wrote: > On 2018-12-12 14:41, allison via cctalk wrote: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (as in under

PET peve thing... Editors

2018-12-12 Thread allison via cctalk
or other programmers editors? So now I'm going to have to write my own as the "world search tools" are willfully dumb and stupid. Allison

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