- test-drb@ccmp.vtda.org - classiccmp.org

by sales＠elecplus.com

http://www.cdw.com/shop/products/Raritan-Dominion-KX-PS-2-CIM/597051.aspx?cm _mmc=ShoppingFeeds-_-GoogleBase-_-Servers%20_%20Server%20Management/KVM%20Co nsoles%20_%20Switches-_-597051_Raritan%20Dominion%20KX%20PS_2%20CIM_RAR-DCIM -PS2 <http://www.cdw.com/shop/products/Raritan-Dominion-KX-PS-2-CIM/597051.aspx?c m_mmc=ShoppingFeeds-_-GoogleBase-_-Servers%20_%20Server%20Management/KVM%20C onsoles%20_%20Switches-_-597051_Raritan%20Dominion%20KX%20PS_2%20CIM_RAR-DCI M-PS2&gclid=CLrwnMzA6rsCFa4-Mgoddz0A6A> &gclid=CLrwnMzA6rsCFa4-Mgoddz0A6A A large qty of these are available to me, new. Any takers? Where do you want to be on price? Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6978 - Release Date: 01/05/14

12 years, 7 months

1
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DEC cables for BlackBox

by sales＠elecplus.com

http://www.ebay.com/itm/BLACKBOX-EHN051-0010-10-FT-VGA-PS2-PS2-M-SERVSWITCH- CABLE-USED-/221148056077 I have 17 pcs of these NEW, available to me. Any takers out there? If so, where do you want to be on price? Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6978 - Release Date: 01/05/14

12 years, 7 months

1
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RFC Ethernet Bus Interface V1

by aek＠bitsavers.org

Here is a first draft. Anything wrong/missing architecturally? Ethernet Bus Interface Board 2013-12-21 aek +--------------+ | 4Mx16 BBSRAM | +------+ | AS6C1616 | | | +------+-------+ LEDs - + ARM | | SD -- + uCtl | JTAG +------+-------+ USB -- + +-----------+ | -> Simulated Peripheral Registers ENET - + +-----------+ FPGA | Bus Monitor / Adr Mapper SER?-- | | ARM intf | | Bus Master Controler +------+ +------+-------+ | +------+-------+ | | | 5v<->3.3v | | Bus Buffers | +--------------+ The entire address space of the host is maintained in the SRAM ARM performs DMA by placing the data to be transfered where it will appear on the host. If the local memory is the system memory, we're done, just clean up the DMA registers. If not the FPGA does DMA to synchronize local memory with core. 3 cycle data break side effects will have to be investigated. Does any driver watch the value of ADR,WC in memory while a DMA is occurring? Bus transactions are snooped to maintain consistency on the PDP-8 where some core memory is on the Omnibus. This may work OK on small 11's, too but won't be the right thing to do on an 11/70 where memory transactions occur that are invisible to the Unibus. It should be possible to simulate all the front panel functions of an Omnibus machine and to capture all of the state in real time for all of the major registers from watching Omnibus transactions. It is also possible to adapt the board to be a dedicated bus analyzer or soft front panel or peripheral/ memory exerciser for any supported bus architecture. All registers and supported peripherals are obviously soft. The configuration is stored on the SD, along with the FPGA bitstream. Everything should be reconfigurable through transactions across the Ethernet by updating files on the SD card. Battery-backed SRAM was chosen over FRAM because of cost. I'm not sure if a local serial interface would be that useful other than for debugging messages. There are a small number of LEDs hung off of a STP08DP05 Small local SPI NOVRAM for configuration/bitstream storage? SD hot-swap? Larger local storage? Is performance an issue on Omnibus/Qbus/Unibus CPUs? They are slow enough busses that they'll saturate in the couple MB/sec range. Write-through track caching in SRAM? Block mode on QBus .. and on and on Ethernet Peripheral Controller This is the mirror of the Bus Interface Board. It provides block-level data that the Bus Interface sends into the computer. In its simplest form, there is no hardware at all, it is just a simulation running on a computer on the network. The second simplest is hardware that understands the Ethernet peripheral command protocol but has a simple enough interface to the physical device that no FPGA is required. It may also not need any local storage. The most complicated could look like the Bus Interface Board, with local SRAM and FPGA. A Diskferret-like forensic disk interface would be an example of this.

12 years, 7 months

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Need DEC BC80J-20 cable

by charlesmorris800＠centurytel.net

I'm looking for a BC80J-20 cable... that's the one that goes from the RL controller card to the first drive, with a 40 pin header on one end and that big quick-release connector on the other end. (I am tired of failures and damage to the rigged ribbon cable/IDC header I've been using, and now that I'm chasing a fault in my two- RL02 system, I can't swap drives without taking the cover off to get to the header connectors inside). thanks Charles

12 years, 7 months

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7
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Lot of fiche and books on UK ebay

by pontus＠update.uu.se

I thought this might interest some of you. I'd go for it myself but the bulk of the books I don't want will raise the shipping costs to much. /P

12 years, 7 months

4
4
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BNC video cables

by sales＠elecplus.com

Ask and you shall receive.. 4 BNC to PC VGA, new, qty 4, approx 4 feet long, $15 each 3 BNC to PC VGA, used, qty 1, approx 3 feet long, $10 5 BNC to PC VGA, used, qty 1, approx 5 feet long, $15 4 BNC to 15-pin Rasterops PN 9000-0059, new but dusty, $15 (will not work on PC, wrong end) 4 BNC to 15-pin Rasterops PN 9000-0001, new, $15 (will not work on PC, wrong end) Shipping $6 for the 1st cable, and $3 each additional cable ground in US. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6978 - Release Date: 01/05/14

12 years, 7 months

1
0
0 0

MFM Control Signals and RD disk size

by robert.jarratt＠ntlworld.com

As I don't have a logic analyser to help me with my analysis of the MFM interface, can anyone tell me how the MicroVAX 2000 determines disk size? I know it is related to the number of heads, but what does the drive do when the host asks for a head that does not exist? How does it report this back? The only thing I can think of is the Ready signal, could that be it? Regards Rob

12 years, 7 months

11
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cctalk Digest, Vol 125, Issue 14

by seefriek＠gmail.com

From: Liam Proven <lproven at gmail.com> > So, an ad-hominem attack is your idea of a balanced reply, is it? Can't attack the message, attack the messenger. Good to see my assessment was spot on. KJ

12 years, 7 months

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Ten classic electronic calculators from the 1970s and 1980s • The Register

by woyciesjes＠sbcglobal.net

For you calculator geeks out there.... http://www.theregister.co.uk/2014/01/03/ten_classic_calcutors/ -- --- Dave Woyciesjes --- ICQ# 905818 --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.

12 years, 7 months

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Possibly dumbest ebay ad ever...

by evan＠snarc.net

Someone put an Apple sticker on a briefcase. Asking price: $6,000. http://tinyurl.com/n8aw6gl

12 years, 7 months

6
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Wanting a SWTPC 6800 but need more information

by billdeg＠buzz1.com

> I'm just wondering if anyone knows what a typical value for a single unit > with nothing fancy is? I note a recent auction had two of them together for > $1400 - Am I correct to imply from that that the value of an individual unit > is probably less than $700 (that set was unique due to the systems being > linked and that control box they had, I think). A working, complete, 1975-6 SWTPc with top and bezel, original backplane, original CPU and RAM with an MP-S card is worth $1000+. That would be the bare minimum system. $700 is too low for a working system. The newer 6809 SWTPc's would be worth less, maybe you can get one of these for $700. Bill

12 years, 7 months

3
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3rd Party 11/730 memory boards

by seefriek＠gmail.com

I've seen a couple of vague references to 3rd party memory cards for the VAX 11/730, equivalent to the M8750, that used denser DRAM chips in order to use less power. Unfortunately, my google-fu has turned up nothing. Does anyone know who made these cards and what part number they would be (assuming they exist at all)? KJ

12 years, 7 months

2
1
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RD54 IDs

by sander.reiche＠gmail.com

Hi all, I think I'm not getting it. I have a BA23 with a 11/83 and a RQDX3. I have set the IDs on the RD54s (XT2190s) to ID 0 (pin 1 and C) and ID 1 (pin 2 and C) but yet ZRQCH0 or RT-11 does not seem to find the second disk, which should be DU1, right? Am I missing something here? regards, reiche

12 years, 7 months

3
2
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DEC InfoServer 100 Firmware archived anywhere?

by glen.slick＠gmail.com

Has anyone archived the DEC InfoServer 100 firmware anywhere? I see that CHM has one, http://www.computerhistory.org/collections/catalog/102682746 Is the InfoServer 100 motherboard identical to that of the MicroVAX 3100 Model 20, except for the firmware? From information I've found on the net that appears that it might be the case but I haven't found a definitive answer on that. I have a MicroVAX 3100 Model 20 that isn't too interesting and it might be more interesting if it could be converted to an InfoServer 100 with a firmware swap. -Glen

12 years, 7 months

5
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DEC InfoServer 100 Firmware archived anywhere? (Zane Healy

by michael.99.thompson＠gmail.com

> > Subject: Re: DEC InfoServer 100 Firmware archived anywhere? > On Jan 4, 2014, at 12:53 PM, Glen Slick <glen.slick at gmail.com> wrote: > > > Has anyone archived the DEC InfoServer 100 firmware anywhere? > I have V3.5a. -- Michael Thompson

12 years, 7 months

2
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Need DEC BC80J-20 cable

by charlesmorris800＠centurytel.net

On Jan 3, 2014, at 12:00 PM, cctalk-request at classiccmp.org wrote: > From: Brad Parker <brad at heeltoe.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Need DEC BC80J-20 cable > Message-ID: <52C6D5C1.3080207 at heeltoe.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 12/15/13, 10:48 PM, Charles wrote: >> I'm looking for a BC80J-20 cable... that's the one that goes from the >> RL controller card to the first drive, with a 40 pin header on one >> end >> and that big quick-release connector on the other end. >> >> (I am tired of failures and damage to the rigged ribbon cable/IDC >> header I've been using, and now that I'm chasing a fault in my >> two-RL02 system, I can't swap drives without taking the cover off to >> get to the header connectors inside). >> > I think I'm looking for one of these as well. Or maybe someone here > can > point me to what I really want :-) > > I have an RL02 driver and an RL02 controller, but I seem to have > lost/misplaced the "cabinet kit". I could swear I had one at one > point. > > So, the RL02 drive has a terminator and a nice long round cable which > seems to have a 2x.1" header. But I believe I need the cable part > which > is normally install on the cpu cabinet. My guess is it would cable a > shielded ribbon cable with a connector for the board header and the > other end would have a metal bracket and something to mate with the > nice > round cable... > > Is this even close? > > -brad The BC80J-20 has the 40-pin header on one end and enough flat ribbon cable to make it out the back of the chassis... I have never seen a "real" one but I believe it has some kind of transition to the round cable (which then has the quick-disconnect on the other end)? BTW, Continental Computers answered my quote request with they can "let it go for $145"... that's about four times what I expected to pay for one! -Charles

12 years, 7 months

5
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Wanting a SWTPC 6800 but need more information

by brad＠bettercomputing.net

Hey guys, I am keeping an eye out for an SWTPC 6800 system. I was hoping for one with the SWTPC black case. I thought that'd be nice to go with the CT-1024 terminal I have (if I get it working). Have developed a bit of a fascination with SWTPC lately. I'm just wondering if anyone knows what a typical value for a single unit with nothing fancy is? I note a recent auction had two of them together for $1400 - Am I correct to imply from that that the value of an individual unit is probably less than $700 (that set was unique due to the systems being linked and that control box they had, I think). I keep seeing this one popping up on ebay: http://www.ebay.com/itm/SWTPC-6800-in-custom-case-with-PLEXIGLASS-Cover-Rare -/151200879158?pt=US_Vintage_Computers_Mainframes <http://www.ebay.com/itm/SWTPC-6800-in-custom-case-with-PLEXIGLASS-Cover-Rar e-/151200879158?pt=US_Vintage_Computers_Mainframes&hash=item2334465236> &hash=item2334465236 But it's got a custom case, and looking at the written dates on the ROMs appears to be later than what I believe was the 6800's heyday (mid to late 70s?). Did SWTPC sell 6800s as parts like that, or is this something someone cobbled together? Brad

12 years, 7 months

1
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HP 97500-85620 Drives.

by me＠GarrettMeiers.com

Does anyone have any information about these HP hard drives? https://www.dropbox.com/sc/xovh6yyel6zhzil/B4UelO3lhK Model 97500-85620. They have a 40 pin connector on them, but no power input. Doing a search shoes a mix of companies describing these as either HPIB or IDE. I believe HPIB is probably the case, but I can't find any documentation for the drives to be 100% sure. I would love to find a manual/spec sheet for the drives. Thanks! Garrett Meiers Founder, BitHistory.org & President, ConsulNIX, LLC www.BitHistory.org www.linkedin.com/in/theunixguy

12 years, 7 months

4
3
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BNC Video out and LCD monitor with VGA D-Sub video in

by aswood＠t-online.de

Hello all, how to connect a HP 9000/300 with RGB BNC video out to a modern LCD monitor, which has only a D-Sub VGA video connector. Can I simply use a classic BNC to VGA cable just reverse connected? Since from 2015 on there will be no new monitor supporting VGA singnals anymore what we have to do to connect our old workstations? Andreas

12 years, 7 months

3
2
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IBM 5120

by webmaster＠supervinx.com

Hi! It's mandatory to connect the printer? Trying to access the internal drives leads in 013 error (Device not attached), both for D80 and D40. I've not opened it yet. The drives spin, I can hear the noise inserting a disk. Thanks!

12 years, 7 months

4
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Intel MDS 225 system being auctioned by Chicago Transit Authority

by brad＠bettercomputing.net

I've been looking at the various means if creating a disk from image.. but given the hardware required and rigging it all up.. I'd rather just obtain a copy somewhere i think. Sent from Samsung Mobile <div>-------- Original message --------</div><div>From: Chuck Guzis <cclist at sydex.com> </div><div>Date:01/03/2014 4:29 PM (GMT-08:00) </div><div>To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> </div><div>Subject: Re: Intel MDS 225 system being auctioned by Chicago Transit Authority </div><div> </div>On 01/03/2014 02:19 PM, Dave Mabry wrote: > If an MDS225 was "upgraded" with the double density boardset and the > internal cable, that turns the internal drive into a double density only > drive. > > I've seen several that were upgraded that way. Yeah, I remember both the DD and SD versions of the board set--and I remember how hot the channel board ran.? One of the first questions I asked on the VCF posting was whether or not the OP had the DD board set--kind of hard to miss.? He reported that he did not, so he's running off the 8271 built-in controller. If he was using the DD board set, that would create an interesting issue, as it uses MMFM, not MFM for encoding.? Not something easily done on a PC. Fortunately, it's clear that plain old SSSD disks will work just fine--and he can probably use a PC to write the images to disk. --Chuck

12 years, 7 months

1
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S-100 buffered prototyping board PCBs are here

by LYNCHAJ＠YAHOO.COM

Hi! Good news! The S-100 buffered prototyping board PCBs have arrived! Here is your chance to build your own S-100 board project! Here is more information on the S-100 buffered prototyping board. These boards have been respun and contain some minor improvements from previous versions. http://www.s100computers.com/My%20System%20Pages/Prototype%20Board/Prototype %20Board.htm The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $12.75 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. My preference is to sell these PCBs to vintage computer/home brew computer/classic computer hobbyists first but if there are any remaining boards I will put them on eBay. Please send a PayPal to LYNCHAJ at YAHOO.COM with the subject "S-100 buffered prototyping board" and I will send your board(s). There are several PCBs left. Thanks and have a nice day! Andrew Lynch

12 years, 7 months

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Intel MDS 225 system being auctioned by Chicago Transit Authority

by brad＠bettercomputing.net

I just bought one of those off ebay for $50. ?Shipping was a killer though. ?Very nice machine. ? Just wish I had a boot disk for it. Brad Sent from Samsung Mobile <div>-------- Original message --------</div><div>From: Jason T <silent700 at gmail.com> </div><div>Date:01/02/2014 1:46 PM (GMT-08:00) </div><div>To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> </div><div>Subject: Re: Intel MDS 225 system being auctioned by Chicago Transit Authority </div><div> </div>On Thu, Dec 12, 2013 at 3:48 PM, Colin Howell <colin.d.howell at gmail.com> wrote: > The Chicago Transit Authority is auctioning off a whole load of > miscellaneous stuff (including a couple of rail cars!). One of the items > being auctioned is what appears to be an Intel MDS 225 "Blue Box" (4 MHz > 8085A system) complete with an MDS 720 disk expansion unit and some sort of > Control Data hard disk. > > The specific lot is here: > > http://ricklevin.nextlot.com/public/lot/15005194?section=photos Despite being local *and* placing a low bid on the lot, I completely dropped the ball (mouse?) and forgot about the closing. Did anyone here end up with this fine blue machine?

12 years, 7 months

5
8
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SWTPC TVT-II

by brad＠bettercomputing.net

Hey everyone, I'm a fairly middle-weight collector based in Squamish, BC. I have about 70 machines total, a few of which are projects that I'm seeking advice/help on. One of them is an SWTPC TVT-II CT-1024 terminal. I bought it a couple of months ago, complete on ebay. I've tried to read as much documentation on these as I can find, but there are a few things I can't figure out. I've posted a few videos of it -- including this one: https://www.youtube.com/watch?v=c2rX10-m8GQ Initially when I turned it on, I got just garbled screen. The first monitor I attempted to hook up to was my Apple III, which apparently can't handle it at all. Then I went to my Commodore 1702 and 1084, and I can adjust things enough to make out a picture and characters, but it's repeated several times, as you can see in the video. On the first few powerups I'd see the occasional flickering of a full field of questionmarks, but it wouldn't stay. I learned about the voltage trimmer on the PSU and have trimmed it to 5V exactly, and now when I turn the unit on, the field of question marks comes up and stays. There is a switch I've discovered (none of them are labelled) that causes that field to disappear. I think this puts the unit into terminal mode. The keyboard is connected to the serial card (I think there is a connector on the motherboard where it could go also if you didn't have that). I also played with some trimmers on the motherboard that adjust horizontal position and so on. Anyway, what you see in the videos up to the most recent one is the most I can make it do. It doesn't seem to respond to keystrokes, and the documentation I have is limited or a bit over my head. Mainly I'd like to figure out why the screen is so messed up. Much appreciated if there are any of you out there familiar with these old timers and would have an idea where to begin looking. Brad

12 years, 7 months

4
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2BSD and RL02 (was Re: Need DEC BC80J-20 cable)

by ethan.dicks＠gmail.com

On Fri, Jan 3, 2014 at 4:17 PM, Mark J. Blair <nf6x at nf6x.net> wrote: > I'm just getting started in DEC stuff in general and RL02 drives in particular. I'm > putting together a PDP-11/44 system, and I hope to try running both RT11 and > BSD on it. The 11/44 has split I&D so you can go with 2.9BSD or 2.11BSD. Generally speaking, you'd probably want to go with 2.11BSD because you can. > Would a two-drive system be sufficient, or would I need more storage space? > I have four RL02 drives in unknown condition, but I was only planning to rack > up two of them with the PDP-11/44 and a Kennedy 9610 9-track tape drive. My experience is that I was able to fit the base install on the first RL02 pack, but there wasn't room to pull the sources and rebuild the kernel without more storage. Even so, 20MB total was kinda tight, maybe too tight. Back when this hardware was current, it was IIRC easy to plunk 2BSD onto one or two RK07s (28MB each). When I started playing with simh 15+ years ago, it was easier to define an RP03 and install into one big 60MB pot (which is how I helped find a simh bug long ago). You can give it a try now with simh by practicing with a couple of 10MB image files and the 2BSD distro tape images. It's an authentic experience in terms of the approach you'd have to take and the commands you'd have to type (without bad blocks and tape errors to pull you astray). If it fits on 2x RL02 in simh, it'll be the same on real hardware. That reminds me - you have to have error-free packs. DEC used to sell RL02-EF packs for use with UNIX (RT-11 can mark bad spots on the disk and if they aren't in the first tracks or if there aren't too many, you can mark those sectors allocated and work around them. Not so with BSD). For RT-11, even a single RL02 is plenty of space. I used develop applications on an 11/23 and an RL01 was enough for the OS and all my code. > My PDP-11/44 pile came with an RL11 board and the cable from it to the > first RL02 drive. It doesn't have a bulkhead fitting; it just goes from > the controller directly to the connector that plugs into the back of an > RL02 drive. I haven't looked at the cable carefully yet, but I can > examine, measure and photograph it if that would be helpful to anybody > else in this thread. The bulkhead bracket was convenient but not essential. To get out of the CPU cabinet, you almost certainly have a flat 40-pin cable, then the transition connector, then probably the usual drive-to-drive round cable, but just laying in a line, not bolted to your rack. It will work just fine but there's a risk of kinking or pinching cables if you move the drives around a lot (the bracket has a spot to screw down a tab on the shield of the round cable as a strain relief with either a 6-32 or 4-40 machine screw). I know I have at least 1-2 bad cables from excessive flex/pinching (I've thought about cutting them at the point of physical damage and trying to make one or two of them into a BC80M cable since I have the right crimper for those Berg pins). > BTW, I am looking for drive ID lenses for my RL02 drives. I need a "1" and > a "2", and I could either buy them outright or trade "0" lenses for them. My > RL02 pile came with three "0" lenses and a "3". My recollection is that it was common to have 1-2 drives, but not 3-4 (for reasons of cost), and as systems were consolidated, there were more "0" plugs than the others combined. I've thought about molding replacements or even 3D printing them (they'd be suitably light-transmissive if made from natural ABS or especially natural or clear PLA) but I haven't tried making an STL of them. There'd be a risk of the fingers snapping off and getting stuck in the switch mechanism, but I think an ABS drive plug that was subjected to the acetone vapor treatment would firm up nicely and be resistant to the layers separating. Anyone care to make up an engineering drawing of the plug with tolerances in the 0.1mm range? -ethan

12 years, 7 months

4
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Keeping a Heavy Machine on a Domestic Suspended Floor (UK)

by robert.jarratt＠ntlworld.com

I recently bought a lovely PDP11/45 in a H960 rack, with the CPU, a Unibus Expansion box and an RK05 drive. I am guessing the whole thing must weigh at least 100Kg, possibly 150Kg or even more (my worst case estimate is 200Kg). I am concerned whether the floor of the upstairs room where I now have it can bear the weight. I have placed it right next to a load bearing wall to ease the strain on the joists. Can anyone tell me what sort of weight a normal UK upstairs floor can bear? If my guessed weight is anything close to the limit I will weigh parts of the machine to get a more accurate idea of the actual weight. Thanks Rob

12 years, 7 months

12
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BNC Video out and LCD monitor with VGA D-Sub video in

by hp-fix＠xs4all.nl

You'll need a Sync On Green to VGA converter to separate the sync signals. -Rik -----Oorspronkelijk bericht----- Van: "Andreas Holz" <aswood at t-online.de> Verzonden: ?4-?1-?2014 09:24 Aan: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Onderwerp: BNC Video out and LCD monitor with VGA D-Sub video in Hello all, how to connect a HP 9000/300 with RGB BNC video out to a modern LCD monitor, which has only a D-Sub VGA video connector. Can I simply use a classic BNC to VGA cable just reverse connected? Since from 2015 on there will be no new monitor supporting VGA singnals anymore what we have to do to connect our old workstations? Andreas

12 years, 7 months

1
0
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VAX 4000-500

by me＠GarrettMeiers.com

I purchased a VAX 4000-500 last month and am pretty excited. I've only owned MicroVAX'es in the past, and this is the first larger VAX I've had.. Although, it's more of a medium-sized VAX. :) ?Came with an Infoserver 100, and a R400X? Expander with three drives. I haven't fired it up yet, but was told it all works. I have the DSSI cables, and need to do a little reading before I connect these up, and fire it up. Any pointers for working with this setup -- in particular DSSI and the Expander, would be appreciated. https://www.dropbox.com/sc/4ziahrtsp5lw57l/fy1lCpcoar#/ ?Thanks, Garrett Meiers Founder, BitHistory.org & President, ConsulNIX, LLC www.BitHistory.org www.linkedin.com/in/theunixguy

12 years, 7 months

2
2
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Need DEC BC80J-20 cable

by charlesmorris800＠centurytel.net

On Jan 3, 2014, at 5:18 PM, cctalk-request at classiccmp.org wrote: > From: Ethan Dicks <ethan.dicks at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Need DEC BC80J-20 cable > Message-ID: > <CAALmimndRqNj0eDbaYdyFGz+VsO0pikpHK_1O5wn4R-n2eV5sg at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Fri, Jan 3, 2014 at 1:35 PM, Al Kossow <aek at bitsavers.org> wrote: >>> BTW, Continental Computers answered my quote request with they can >>> "let it >>> go for $145"... that's about four times what I expected to pay for >>> one! >> >> The BC80M listed for 57.50 should work fine. > > That one looks to be 6' (BC80M06) which is the only length I've seen > in person. They also have a BC80M25 for three times as much. > >> You'll probably have to fiddle with the big drain cable on the >> controller end. > > I remember that big fat braid. ISTR it was not easy to find a > convenient place to bolt that down on a BA23. > > -ethan I am sure I can find a place to fasten it, even if I have to modify the braid (or the chassis) slightly... Anyway I was thinking of just bending over and paying the $57.50. Until I got to "standard 9-13 day shipping $15.00" and it goes up from there. Postage rates have really gotten ridiculous and the companies (except McMaster-Carr who are quite reasonable for shipping) are adding on their profit too. Perhaps I can locate some surplus multiple twisted pair cable and carefully solder the ends to a header connector. There are 13(?) twisted pair differential signals and the rest are no-connects or grounds. As Henk pointed out, some of the trouble may be the 6' of unshielded ribbon cable (which is also smaller gauge than the twisted pairs)... -Charles

12 years, 7 months

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No Console on MicroVAX 2000 if Disk Not Plugged In

by robert.jarratt＠ntlworld.com

I have come across a strange problem with my MicroVAX 2000. If the hard disk is not plugged in I get absolutely nothing on the console, as if the machine was dead. I have perused the technical documentation and I cannot find anything that describes this behaviour. Does anyone know why it might do this and which signal(s) prevent the console coming up? I need this to be able to do some initial testing of a basic emulation of the RD5x disks with an FPGA. Thanks Rob

12 years, 7 months

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older memory, tested on memory tester

by sales＠elecplus.com

No reasonable offers refused J Desktop: 8MB 60ns 11 16MB 60ns 78 32MB 60ns 301 64MB 60ns 19 64MB PC100U 169 64MB PC100E 16 64MB PC133U 17 64MB PC133E 8 128MB PC100U 152 128MB PC100E 11 128MB PC100R 12 128MB PC133U 179 128MB PC133E 9 256MB PC100U 71 256MB PC100E 8 256MB PC100R 11 256MB PC133U 20 256MB PC133E 14 256MB PC133R 8 512MB PC100R 6 512MB PC133U 7 512MB PC133E 1 512MB PC133R 23 1GB PC100R 2 1GB PC133R 3 Laptop: 128MB PC133S 2 256MB PC133S 9 512MB PC133S 3 Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6971 - Release Date: 01/02/14

12 years, 7 months

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Commodore PET 2001 with screen problem

by brad＠bettercomputing.net

One other project I'm having some difficulties with is a Commodore PET 2001 that I've had for 10 years. In that time, turning it on only ever produced a 'blank' raster screen, as in this video: https://www.youtube.com/watch?v=m5Rkwu858zA For years I assumed the computer was basically dead and kept it on static display. But just recently I acquired a good working 2001-16, and discovered that I could use its monitor with the 2001-8. I discovered the standard garbage screen, and after acquiring a whole bunch of rare NOS 6540s, and some 6550 RAMs, was able to get the 2001-8's motherboard fully functional. The screen however remains the same. I have connected it to the other working PET to no avail. I have even used the working PET's own cabling. So my problem is basically the video board. I've fixed the brightness control but that's as far as I've dared go given the voltages involved with a CRT. Wondering if anyone has any other ideas on where my problem could be. Thanks!! Brad

12 years, 7 months

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Anyone else getting multiple Digest mailings?

by kevin_anderson_dbq＠yahoo.com

On this e-mail list, plus another one that I belong to (on a totally different server as far as I know), I've started to received multiple copies of the Digest. Up to four copies of each digest are being sent. Same on the other e-mail list I belong to. List owner - was a recent upgrade to the Mailman software put on your server just a few days ago? It seems coincidental that both list, both using Mailman software, are suddenly behaving this way. Kevin Anderson, Dubuque, Iowa

12 years, 7 months

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Need DEC BC80J-20 cable

by js＠cimmeri.com

Subject: Re: Need DEC BC80J-20 cable From: Brad Parker <brad at heeltoe.com> Date: Fri, 03 Jan 2014 10:22:41 -0500 I think I'm looking for one of these as well. Or maybe someone here can point me to what I really want :-) I have an RL02 driver and an RL02 controller, but I seem to have lost/misplaced the "cabinet kit". I could swear I had one at one point. So, the RL02 drive has a terminator and a nice long round cable which seems to have a 2x.1" header. But I believe I need the cable part which is normally install on the cpu cabinet. My guess is it would cable a shielded ribbon cable with a connector for the board header and the other end would have a metal bracket and something to mate with the nice round cable... Is this even close? -brad Brad, From the controller, there's a shielded flat ribbon cable with a Berg on either end. Next is a Berg->RL02 cable adapter which can mount in a distribution panel. Not sure what the RL02 connector is, but it's the same as is on back of the RL02. Next, is the nice round RL02 cable with the special twist-lock connectors on either end. Last, of course, is the RL02 with two connectors, one having a terminator if end of chain. - John S.

12 years, 7 months

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Keeping a Heavy Machine on a Domestic Suspended Floor (UK)

by elson＠pico-systems.com

From: "Robert Jarratt"<robert.jarratt at ntlworld.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Keeping a Heavy Machine on a Domestic Suspended Floor (UK) Message-ID:<068e01cf07f6$bde4ee40$39aecac0$(a)ntlworld.com> Content-Type: text/plain; charset="us-ascii" I recently bought a lovely PDP11/45 in a H960 rack, with the CPU, a Unibus Expansion box and an RK05 drive. I am guessing the whole thing must weigh at least 100Kg, possibly 150Kg or even more (my worst case estimate is 200Kg). I am concerned whether the floor of the upstairs room where I now have it can bear the weight. I have placed it right next to a load bearing wall to ease the strain on the joists. Can anyone tell me what sort of weight a normal UK upstairs floor can bear? If my guessed weight is anything close to the limit I will weigh parts of the machine to get a more accurate idea of the actual weight. Really, compare it to a piano! Even an upright piano weighs more than 200 Kg. I seriously doubt you have any danger. You can probably get the true weight from installation docs on bitsavers. It is possible it weighs more than 200 Kg, but still less than some really heavy furniture or a grand piano. Jon

12 years, 7 months

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2014 started off well here..

by hp-fix＠xs4all.nl

Congrats, a nice find! You should post some pictures. -Rik PS. Gelukkig 2014. -----Oorspronkelijk bericht----- Van: "Jos Dreesen" <jdr_use at bluewin.ch> Verzonden: ?2-?1-?2014 23:24 Aan: "On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Onderwerp: 2014 started off well here.. The local craigslist equivalent yielded a tiny advert "Imsai 8080 computer from 1977". price : 110 USD, negotiable.... The picture was a tiny B/W jpg lifted from the internet, and did not look too promising. The actual hardware ? An absolutely mint, as-new, IMSAI 8080... >from the orignal owner.... with full documtation, including original invoice... in the original IMSAI cardbox ! Also MPU-A and MIO cards.. 24 Kbytes of 2102 SRAM.. all ICs socketed.. with papertape software.... handpulled papertape reader... Needless to say no further price negotiations took place. About the only minus is the MDC-A4 floppy controller, which requires more difficult to find hardsectored disks. ( Original diskdrive and disks were scrapped a long time ago ) I will also need to find some extra s100 connectors to complete the backplane. it seems the '2014 project is defined ! Jos

12 years, 7 months

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Intel MDS 225 system being auctioned by Chicago Transit Authority

by colin.d.howell＠gmail.com

(I'm not subscribed to the list, but I'm passing this along because I thought it would be of interest to list members.) The Chicago Transit Authority is auctioning off a whole load of miscellaneous stuff (including a couple of rail cars!). One of the items being auctioned is what appears to be an Intel MDS 225 "Blue Box" (4 MHz 8085A system) complete with an MDS 720 disk expansion unit and some sort of Control Data hard disk. The specific lot is here: http://ricklevin.nextlot.com/public/lot/15005194?section=photos No idea whether any of the hardware is functional. Bids for the whole lot currently stand at $60. Auction for this lot ends December 18th (Wednesday), 11:10 AM local time (Central Standard Time). More info on the auction can be found via the link above. General news story on the auction: http://www.dnainfo.com/chicago/20131212/downtown/cta-selling-bus-signs-trai… Colin Howell

12 years, 7 months

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VT-180 (Robin) EPROM images?

by ajp166＠bellatlantic.net

> >Subject: VT-180 (Robin) EPROM images? > From: "Robert Armstrong" <bob at jfcl.com> > Date: Sat, 10 Mar 2007 20:23:04 -0800 > To: <cctech at classiccmp.org> > > Does anybody have images of the v2.1 Z-80 firmware for the VT-180 (aka >Robin) ? At least, I think 2.1 was the last version ever released. They >should be DEC part numbers 23-017E3-00 and 23-021E3-00. > >Thanks, >Bob Armstrong I have enough of them laying around I could supply the actual roms. I've never imaged them as It's easier to replace the code outright. Curious why are you looking for them? Allison

12 years, 7 months

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Looking for info on a DTC controller

by azd30＠telus.net

Hi, I came across a qbus card manufacturded by Data Technology Corp. labelled DTC LSI11-2. Has a 50pin header connector upper left hand side when looking at the component side. Searching around on bitsavers revealed a manual for the DTC LSI11-1. It seems to be a disk controller. Does anyone have any info on the 11-2? Switch settings, and/or drives that can be connected to this? I can provide pics of the controller if it would help. thanks alex p.s apologies if this msg shows up twice, e-mail has been acting up today. --

12 years, 7 months

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Apple II+ revised video

by terry＠webweavers.co.nz

I just couldn't let my Apple II+ languish on Youtube in low-def. For those interested the new HD remake here : http://youtu.be/eOsFeKGgEVg

12 years, 7 months

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Commodore SuperPET history and HOSTCM

by rob＠bitscience.ca

My apologies for the missing links; they got stripped out by the mailing list software. Please see http://seefigure1.com for the various things I referenced. Thanks, Rob Ferguson

12 years, 7 months

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Message from BillDeg

by hp-fix＠xs4all.nl

Can someone put the poor bastard out of this misery ;) I think loosing your short term memory is one of the first signs of Alzheimer.. -Rik -----Oorspronkelijk bericht----- Van: "billdeg at degnanco.com" <billdeg at degnanco.com> Verzonden: ?1-?1-?2014 18:07 Aan: "cctech at classiccmp.org" <cctech at classiccmp.org> Onderwerp: Message from BillDeg Effective Immediately After 16 years of use, it's time to retire billdeg at degnanco.com. Henceforth all emails to billdeg at degnanco.com will be deleted. If you wish to contact Bill by email, please use billdeg at buzz1.com B

12 years, 7 months

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Message from BillDeg

by billdeg＠degnanco.com

Effective Immediately After 16 years of use, it's time to retire billdeg at degnanco.com. Henceforth all emails to billdeg at degnanco.com will be deleted. If you wish to contact Bill by email, please use billdeg at buzz1.com B

12 years, 7 months

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Replacing Ribbon Cable in a DSSI Cabinet Kit

by robert.jarratt＠ntlworld.com

I have managed to break one of the wires in the ribbon cable of the DSSI cabinet kit in my BA213 MicroVAX 3400. It looks like it would be fairly easy to replace with any 50-way ribbon cable with a male connector and multiple female connectors. The only problem is the connector to the front panel, the ribbon is split into two at the external connector and goes into two separate halves of the back of the connector. Is it possible to open up the back of the connector without damaging it? The alternative would be either to find a replacement cable (anyone have one?) or try to repair the broken wire Regards Rob

12 years, 7 months

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Commodore SuperPET history and HOSTCM

by rob＠bitscience.ca

Over the last year or so, I've been researching the history of the Commodore SuperPET. I've just pushed a couple of things that I've been working on out to my website, and I thought people here might find them interesting. First is a narrative about how the SuperPET came to be, and how work on academic software at the University of Waterloo culminated in a collaboration with Commodore. Much of the information stems from new research which I conducted in the UW Archives this past summer. It also traces the origin and fate of the MICROWAT, a precursor hardware design that had a great deal of influence on the SuperPET. The whole thing can be found here: How the SuperPET came to be Second, I've written a timeline that documents significant events in the birth, life and decline of the SuperPET. That's here: The Commodore SuperPET: a timeline Third, one of the more interesting -- and mostly undocumented -- features of the SuperPET was its built-in ability to be a client to a remote fileserver; this relied on an RPC-like facility called HOSTCM that used the serial line as a transport. I have reverse engineered the protocol, and written a program that acts as a HOSTCM fileserver for the SuperPET. It runs on a variety of modern machines, including Mac OS X, FreeBSD and Linux. Among other things, this means that you can use a SuperPET without an attached diskette drive, and that you can move disk images, files and programs between the SuperPET and modern machines without specialized hardware. You can find the program here: HOSTCM and the protocol documentation here: The HOSTCM protocol Finally, I've written a couple of utilities that are useful for manipulating archived Commodore disk images for use with my HOSTCM implementation. That can be found here: Utilities for HOSTCM Oh, and there are some good pictures, too. If anyone has comments or questions, please let me know. Cheers, Rob Ferguson

12 years, 7 months

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Message from BillDeg

by billdeg＠degnanco.com

Effective Immediately After 16 years of use, it's time to retire billdeg at degnanco.com. Henceforth all emails to billdeg at degnanco.com will be deleted. If you wish to contact Bill by email, please use billdeg at buzz1.com B

12 years, 7 months

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SGI memory has been claimed

by sales＠elecplus.com

The SGI memory that I offered has already been claimed. Thank you for all the responses! Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6962 - Release Date: 12/30/13

12 years, 7 months

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Using SDHX.SYS (RT-11 Symbolic Debugger)

by jhfinedp3k＠compsys.to

Happy New Year to everyone who uses the Common Era calendar, since by the time this reply is read, New Year's day of 2014 will have already started for some individuals. If anyone who is reading this still uses RT-11 to change RT-11 programs and uses the RT-11 Symbolic Debugger, SD:, I have a few questions. As for using SD: (the RT-11 Symbolic Debugger), does anyone find that SDHX.SYS uses too much low memory (1125 words)? Would having an option to retain the Program Counter Locations (at least the last 1000 addresses executed - in a circular buffer, of course) be of help in debugging RT-11 code? Another option which I would appreciate would be the ability to support the temporary execution of other jobs while the current job being executed is placed into .Wait state. Does anyone else agree? Under TSX-Plus and RSX-11, that happens automatically, in addition to using VDT under RT-11. BUT, SDHX.SYS freezes the complete RT-11 system when the code being debugged is stopped at a break point, including even clock interrupts. Jerome Fine

12 years, 7 months

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Q-bus cpus, more...

by useddec＠gmail.com

The following is a partial list of mostly cpu boards surplus to my needs. Please contact me off list if interested. Some are available without roms. Some other boxes, boards here, but no list yet. Shipping from 61853, Illinois. M7264- 11/03 no memory $45 M7264- 11/03 W memory $60 M7270 LSI-2 $80 M8186 11/23 $100 M8189 11/23+ $160 M8044 MSV11-DD $40 Qty discounts available. Also have several complete 11/44 CPU sets and a bunch of M7819, DZ11-A boards. Thanks, Paul

12 years, 7 months

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Tandem Himalaya K200, two complete systems with lots of extra parts (including spares)

by marcogb＠xs4all.nl

In the Netherlands, two Tandem Himalaya K200 systems (I believe those are MIPS-powered, NonStop) with disks, tape cartridges, spare parts and more. All for *free*. <http://link.marktplaats.nl/760755920> In the description it's mentioned that these systems used to run at the NYSE Euronext stock exchange. (They were probably decommissioned to be replaced with IA-64 NonStop systems, or something else, who knows.) It looks physically gigantic and that it may (sic) require three-phase power. But, in the description the person that is offering it writes that one system ought to fit in a BMW 5-series station wagon car and that it will definitely fit in a 'rent-a-haul' type of trailer. I'm fairly nearby it, I imagine others may too. But, I don't have adequate power-requirements for it most likely. For who is interested in trying out a 'NonStop' system (these seem very rare, needless to say), maybe we could start some kind of 'fundraiser' and that whoever is interested pitches in a small amount of money, then we can see if we can get this gigantic monstrosity shipped to someone who can power it and so that people can perhaps try it out through remote access...? (Just an idea.) - MG

12 years, 7 months

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Fwd: FS: Workgroup Server 95

by lproven＠gmail.com

I thought that this might be of interest on here... -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ---------- Forwarded message ---------- From: Pam Tcath <ptcath at gmail.com> Date: 30 December 2013 19:56 Subject: FS: Workgroup Server 95 To: lemswap at googlegroups.com For sale is a Workgroup Server 95, 16Mb RAM, 1.2Gb HDD, Floppy Drive, DAT Drive running A/UX 3.0.1 and OS7.0.1. This is a RARE machine in Excellent Condition. Everything works. $ 375.00 postpaid CONUS. PayPal ONLY. Pictures on request. Pam Tcath Cranston, RI 02910

12 years, 7 months

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SGI memory

by sales＠elecplus.com

I have these memory modules, no way to test. 2 are Silicon Graphics branded, no visible part numbers. 6 are Kingston branded, pn KSG-02/64. I think these go to an SGI O2 machine? $5 each, take them all, plus $6 shipping. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6961 - Release Date: 12/30/13

12 years, 7 months

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LA120 PSU fault

by b4＠gewt.net

Afternoon, I've managed to acquire an LA120! Woohoo! However, it had some issues...as was discussed when I got it. ;) I've replaced the blown fuse, the there is continuity for the pico fuse on the PSU...but I have no idea if that indicates it works or not. The only thing that runs is the fan. What are some test points I can try? Also...what is the value for the picofuse? I have 125V 1.5A fuses...but I think it needs higher current. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 7 months

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Message from BillDeg

by billdeg＠degnanco.com

Effective Immediately After 16 years of use, it's time to retire billdeg at degnanco.com. Henceforth all emails to billdeg at degnanco.com will be deleted. If you wish to contact Bill by email, please use billdeg at buzz1.com B

12 years, 7 months

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Classiccmp prop sighted

by ethan.dicks＠gmail.com

Was just watching SG-1 episode "Tin Man" - there's a door opening lever that's an RL02-type disk pack painted silver (can't tell which variety under the paint). Just amusing to spot. -ethan

12 years, 7 months

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Island of misfit toys (or classic computers)

by ittybittybytes＠gmail.com

Rudolph and Santa has the island of misfit toys. I have the island of misfit or slightly broken classic computers on eBay 1. green screened AT&t 7300 2.Vt100 minus keyboard (powers up but screen does not go on) 3.HP 9534; powers up, attached monitor works OK but only posts intermittently. I suspect either something loose or faulty power supply. The HP and the Vt will go up tomorrow around 10 am PST http://www.ebay.com/sch/tcp1022/m.html?item=251410916240&ssPageName=STRK%3A… These were items I had on my to do list to fix, but time has run out. I am also giving a head up in that I'm selling my DECSystem 310, which is a pdp8/a housed in a metal office desk. I comes with a circa 1974 Tec 440 terminal, an LA36 and an RL01.as well as the housed RX01(2)? I'm not selling this on eBay but to any listers who might be interested. I'll post more info as soon as I take some pics and gather it all together. It will have to be freighted or picked up. I can hold it for 4-6 months if you want to come to SE AZ to pick it up (near Tucson)

12 years, 7 months

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MFM prototyping

by robert.jarratt＠ntlworld.com

I need to find a way to interface a breadboard prototype to an MFM connection on a MicroVAX 2000. The cable I have is the type that connects to tracks on a two sided PCB (like the edge of any PC card that plugs into an ISA, or PCI slot), I don't know if this has a name. Is there anything I could search for that would give me small 2-sided PCBs with the tracks on each side and an easy way to connect wires from the breadboard? Another alternative would be to find single-pin sockets for the wires so that I could connect wires directly to the IDC header on the MicroVAX 2000 system board on an individual basis. I have searched for these but not found anything, do these things have a name? I suppose I could just buy or make a simple 60-way ribbon cable and push the wires from the breadboard into the socket on the ribbon cable. Any other ideas? Regards Rob

12 years, 7 months

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KASIM VER 0.2 19-JAN-77 - DEC's own KA10 simulator?

by bob＠jfcl.com

I was looking at some of the diagnostics on the KLAD pack http://pdp-10.trailing-edge.com/klad_sources/index.html and I notice that this one (DAKAA - basic instruction test) has a bunch of interesting output at the end of the .SEQ file http://pdp-10.trailing-edge.com/klad_sources/01/klad.sources/dakaa.seq.html The first part is just the diagnostic operating instructions and the second part is the MACRO-10 listing, but at the end there's the output from what appears to be a KA10 simulation. The header on each listing page says "KASIM VER 0.2 19-JAN-77" - did DEC actually write a KA10 simulator ? And it's apparently more than just a simple instruction simulator too, because for each instruction there's a complete trace with all the internal time states and internal register contents for the KA10. It must be an attempt to model the internal architecture of the KA CPU. Does anyone know any more about this program? Does anyone have a pointer to the source for it? Tantalizingly there's a KASIM.SAV on the KLAD pack, but that's all. Bob

12 years, 7 months

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Loading ZQRCH0/XXDP on PDP-11/23 or PDP-11/01

by b4＠gewt.net

Evening... I'm fighting with trying to get my disk formatted so I can use my PDP-11s. ;) Tape records are: 0 zrqch0 1 zrqah0 2 zrqch0 3 zrqah0 Opening port /dev/ttyUSB0 .... Port open ? Opened zrqch0 read-write rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr And it stalls after that many R and goes no further. I have no alternative means to boot XXDP on this system...my only option is vtserver until I get a drive formatted. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 7 months

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Question re: DMK2IMD

by snhirsch＠gmail.com

I'm attempting to convert a TRS-80 DMK image to ImageDisk format in order to write out a real floppy. The original was 80-track, DS, DD and indeed the sdltrs emulator concurs and can catalog the image without incident. The DMK2IMD utility converts it without complaint and reports: 80X6400 DSMD 250k data rate assumed But, when I fire up IMD and write it out things stop after track 39 and tell me that 2880 sectors have been written. That's the correct number of sectors, but they should be spread over 80 tracks. Clearly I'm missing something, but am not sure exactly what. The drive is 80-track DSQD and data rate is 250Kbps. I am not set for double-step and imd believes (correctly) that the drive is an 80-track unit. (I have also tried this with a more common 5.25" HD 1.2M drive - using 250k-->300k rate conversion - but the same thing happens) Steve --

12 years, 7 months

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Free in Noord-Holland, Netherlands: 2x Tandem Himalaya K200, peripherals

by theodric＠gmail.com

Free to a good home: 2 Tandem Himalaya K200 mainframes (circa 1993, according to the date stamps inside), a disk array, some spare disks, two terminals, assorted system cabling, spare internal cards and spare internal disks. The fellow I got them from worked for NYSE Euronext, and said that they were used there before he acquired them through official channels after they were decommissioned. I have a printout of an e-mail to that effect, which also includes instructions for bringing them up?something I?ve never tried to do. They take a couple C19 power cords (provided) on an 8A circuit, and are reportedly working. They are large (76x102x53cm) and heavy (two strong people can lift one, just). Location is Noord-Holland, Netherlands. If you?re interested in collecting them or you are willing to arrange your own pallet collection by courier, please contact me off list. Jeremy

12 years, 7 months

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[Mark@Misty.com: [rescue] HP 715/50 and 715/80 free for local pickup]

by Mark＠Misty.com

Hi, I tried the rescue lists, but maybe these are old enough for cctalk. HP 715/50 and 715/80, one HP chicklet keyboard, mouse, and a collection of HP CDROMs. These are nice and clean, include internal CDROM drives, some memory in one of them. Sorry, I used the SCSI drives from these for another project. At one point I did have one booting before then from install CDROM and from a SCSI hard drive. These are free, for local pickup, near Plymouth Meeting, PA, United States. I might be persuaded to pack and ship these if anyone has anything I am looking for in trade: - An intact DEC BA23 front, back, and floor-stand base-plate thing. - A DEC Q-Bus M7516 DELQA ethernet interface. - Other BA23 pdp11 q-bus related stuff. Mark -- Mark G. Thomas (Mark at Misty.com)

12 years, 7 months

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AN/AYK-14 CDC Computers

by michael.99.thompson＠gmail.com

The RICM just received three AN/AYK-14 CDC computers as a donation. It looks like they each contain 4x 32k x 18-bit Core Memory Module, Memory Control Module, General Processor Module, Processor Support Module, and an I/O board. Anyone know about these systems? -- Michael Thompson

12 years, 7 months

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cctech Digest, Vol 124, Issue 31

by michael.99.thompson＠gmail.com

> From: Al Kossow <aek at bitsavers.org> > Date: Sun, 29 Dec 2013 07:38:23 -0800 > Subject: Re: RFC Ethernet Bus Interface V1 > > So I'm back to a couple of bus translator PCBs with the actual microcontroller and FPGA on separate mezanine > cards so whatever the silicon is that the bus translators stay the same. At least that's the theory. I used this: http://www.emcraft.com/products/133#starter-kit plus some bus translators to emulate a paper tape reader on a PDP-8/L. I will use this one: http://www.emcraft.com/products/133#overview next time because it has a lot more I/O. -- Michael Thompson

12 years, 7 months

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Message from BillDeg

by billdeg＠degnanco.com

Effective Immediately After 16 years of use, it's time to retire billdeg at degnanco.com. Henceforth all emails to billdeg at degnanco.com will be deleted. If you wish to contact Bill by email, please use billdeg at buzz1.com B

12 years, 7 months

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DEC RX02 Catweasel (.DMK) image to SIMH

by shadoooo＠gmail.com

Hello. I have an image file of an DEC RX02 diskette obtained with Catweasel (.DMK). I would use this image on SIMH, but I have no clue about the way to convert it to SIMH format. Any idea? Thanks Andrea

12 years, 7 months

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HP PA-RISC Linux Developers needed!

by xmechanic＠landcomp.net

Hiya Folks, First off, Merry Christmas and a Happy and healthy New Year to everyone here! I've been working with a couple of developers during the last few months to get 3 of my HP PA-RISC boxes back up and running with Debian HPPA Linux. Debian dropped support for hppa a few years ago, due to lack of certified developers (DD's), but a few die-hards managed to keep it going outside of the normal repositories at http://www/parisc-linux.org . We would really like to see the port listed as an active architecture again in the Debian repos, but in order to do so, they require at least 5 *active* developers to maintain the port. Thanks to Helge Deller (Germany), John David Anglin (Canada), and a few custom kernel re-writes, we now have a stable 32 & 64 Bit SMP kernel (currently at 3.11-1 'unstable' and 3.11.2 'experimental'), and we have 3 buildd servers running on 2 different machines (at my location), generating up-to-date packages for download at http://www.debian-ports.org . Dave Anglin is currently working on setting up another buildd on one of his machines to balance the load out a bit. :) Bottom line is, people can now 'debootstrap' new installs on their hardware with a basic 'lifimage' CD available for download at: http://ftp.parisc-linux.org/debian-ports/unstable-boot-image/lifimage and a network connection, to pull the necessary packages from debian-ports.org. We are in desperate need of additional developers familiar with working with the older HP PA-RISC hardware, and know something about coding for this architecture in Linux, and especially somebody that may know a bit about back-engineering some of the HP graphics cards to support Xorg and a regular GUI desktop. As it stands, we only have graphics support for the rare, and usually expensive, ATI FireGL-UX PCI-X type cards, and it's still a bit buggy. So dig out your old HP RISC boxes and dust them off, and see if you can get them loaded up and running, and more importantly, if you're interested in having an up-to-date Linux distribution that actually makes these bullet-proof servers and workstations usable again, contact me off-list and I'll get you connected with Dave Anglin and/or Helge Deller, two of the main forces in this project at the moment, and they can get you pointed in the right direction, if you're up for some development work! You can see a bit of our current progress (mainly with my original Visualize J6750 workstation), and two (new to me) machines that were donated by a former developer in the project, in my website hosted on the J6750 along with 2 of the buildd servers, a full, *current*, LAMP server to handle the website, and numerous other little projects, all running on 2 - 875mhz. PA-RISC processors and 7 gb. or so of RAM. You can see that here: http://www.landcomp.net:884/wp/ along with my newly acquired RP-2470 (A500) server, and another J6000 series workstation. We're still deciding what kind of tricks we want to make it do, so it's offline at the moment, but ready to go, for graphics development or whatever. :) Happy Holidays, and we hope to hear from you soon! :) Dave L. -- Dave Land Land Computer Service xmechanic at landcomp.net ICQ: 676030523

12 years, 7 months

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Denver area oldies, especially Apple/Mac

by sales＠elecplus.com

If you live in the Denver area, there is a recycler that has lots of old Apple/Mac stuff. Contact me off list for address. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6956 - Release Date: 12/28/13

12 years, 7 months

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Amiga 4000 power supply specs

by james＠attfield.co.uk

Message: 4 Date: Wed, 25 Dec 2013 21:25:16 -0500 From: Joe Giliberti <starbase89 at gmail.com> Subject: Amiga 4000 power supply specs Hello I have an Amiga 4000 040 with what I think is a fouled up power supply. I am looking for info as to what voltages should be where so i can determine if the PSU is the problem. Any help is very much appreciated. Thanks Joe ------------------------------ According to the schematic there is a power connector (CN160) which has the following pin-outs: Pin 1: FAIL signal (470R pull-up to +5v) by plug chamfer Pin 2: -12v Pin 3: +12v Pin 4: Ground (opposite pin 1) Pin 5: Ground Pin 6 +5v (1.8A poly-switch protection, opposite pin 3) I don't think the schematic is model-specific. Good luck! Jim

12 years, 7 months

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0
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WTD - MFM or RLL 5.25in Half Height drive

by classiccmp＠philpem.me.uk

Hi guys, Does anyone have a spare 5.25-inch half-height MFM or RLL ("ST506" interface) hard drive? I'm trying to resurrect an AT&T UNIX PC, but its Microscience HH-1090 drive is basically a brick. I can format it with the Diagnostics disk, but the install floppy falls down when it tries to 'mkfs' the root filesystem. Running mkfs manually produces a "write error" message. Mapping the bad block doesn't help in the least, and the diag floppy reports 76 bad block table (remap) entries when I run the S4TEST (expert mode) disk diagnostic... Anything <= 1400 cylinders and 8 heads would work fine (though I could always lie to the machine and specify a lower head and cylinder count) but ideally I need (cylinders * heads * 16 * 512) to be >= 40MB. There's a bit more about this requirement and why here -- http://unixpc.taronga.com/faq/part2/faq-doc-6.html The machine may have a WD2010 controller (I'm not sure, I need to crack 'er open and check) but it certainly doesn't have the P5.1 upgrade PAL. Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

12 years, 7 months

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Amiga 4000 power supply specs

by starbase89＠gmail.com

Hello I have an Amiga 4000 040 with what I think is a fouled up power supply. I am looking for info as to what voltages should be where so i can determine if the PSU is the problem. Any help is very much appreciated. Thanks Joe

12 years, 7 months

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Paper or cardboard IBM 360 models

by buddy.holman＠gmail.com

Folks, I am teaching a course on the history of computing. I am looking for cardboard or paper models of the IBM 360 computing system to help my students visualize what a computer center of the 1970s would look like. Does anyone know of a source for these models? Thanks! Ellis

12 years, 7 months

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Siemens PT80 info

by hp-fix＠xs4all.nl

After a trade session with Henk, I got a Siemens PT80 teleprinter ;) I'm trying to find some info on the net but there is very little info about the PT80, the PT80i is mentioned a lot because it was one of the first inktjet printers. But info about the PT80 is very sparse, so I'm looking for some kind of service and installation info so I can connect and use the 'beast'. I know it uses a current loop connection, but the connection board has more connection points then used at the moment, and I reverse engineered the polarity and Tx and Rx connections, but I'm also looking for the possibility to address the puncher and punch reader from outside the PT80. So if one of you has info.. -Rik

12 years, 7 months

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trs-80 model 3 question

by bbrown＠harpercollege.edu

I have a trs-80 model III. It seems to work ok except that some of the characters on the screen are wrong...the computer works even though some of the characters on the screen are wrong (and they seem consistently wrong...a "?" always displays as the same bad character. Does this sound like video ram? Or something else? Any troubleshooting info out there? Thanks. -Bob

12 years, 7 months

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Wiring up an LPFK

by ethan.dicks＠gmail.com

Hi, All, Years after we were discussing the LPFK in detail, I have managed to be home long enough to find mine and hook them up. I've also dug into the innards a little bit to understand how to wire up a cable, and it brings me to a question... what is pin 4? According to the old discussions, pin 4 was described as +5V or "+5V through a pullup" since there was clearly not a direct path from pin 3 to pin 4. My tracing of the board shows me that pin 3 is indeed +5V in, but pin 4 is connected to +5V through a signal diode, *and* to ground through a diode, *and* (through a small resistor) to both inputs on one of the gates in the 74LS00 whose output is RESET. So... it looks like a diode-clamped input for resetting the 8031. My question is, given that one diode drop is 0.7V (I don't think these are zeners, at least they are in orange glass packages with a yellow stripe, not a silver package with black stripe and numbers like the zeners I recognize), can you safely put more than 6V on this input or not? i.e., is it meant to be connected to RTS or DTR so that the host can easily reset it? I know more modern serial ports (those without 1488s and 1489s, for instance) don't often hit +/-12V, but I know nothing about what the LPFK was supposed to connect to, so I can't guess what serial voltages the LPFK would have to accommodate. Does anyone have a pinout or a good description of the original IBM cable? To connect up my LPFKs, I bisected an old 8-pin DIN cable and added a DE9, and for the interface, hacked a Keyspan-brand RS-232 dongle to sever RI from pin 9 and to bring up +5V from the USB connector. I've seen other serial devices (like those used with a POS) that have power-over-serial on pin 9, so I know it was commonly done for embedded devices, but I can't seem to find a good name for the practice (I was planning on marking altered devices with "P9" so I know that pin 9 is powered. It's fun finally getting some practical experience on the real hardware and to see the sample code I wrote five years ago for Phil Pemberton's library in action. Thanks for any info, -ethan

12 years, 7 months

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Why did microcomputers die off?

by bearnold＠outlook.com

I think I'm missing something. For the sake of differentiating between, I'm going lump the Altair's, SWTPC, etc. into the Microcomputer group, Apple II's Atari's etc. in Home Computers, and IBM PC and compatibles in IBM PC group. I have a question. Why did microcomputers die off? I've been thinking about that this morning and I seem to be missing something. To my experience, the microcomputers started to really fade out around the time home computers got big. But to me these are two different market segments with some, but not a whole lot of overlap. Had the microcomputer market hit saturation by that time? That's the only thing I can come up with. But then what sustained business until the IBM PC steamroller came along? I guess it was mostly the unglamorous and unreported on microcomputers, as I don't think the Apple II got /that/ deep into businesses (other home computers had next to no penetration). Ah, hmm, maybe I am over generalizing the microcomputer group. Maybe it should actually be split into two, the hobbyist micros and the business micros? While they tended to use the same machines, the focus was different I think. That would tend to agree with my supposition above that the hobbyist micro market hit saturation, and the business micro market quietly chugged along until steamrolled. And that would imply that the home computer group had next to no impact on either of the microcomputer groups. Or am I missing a piece, or two, to this puzzle? Thanks, Brad

12 years, 7 months

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Merry Newtonsday

by ard＠p850ug1.demon.co.uk

Merry Newtonsday, or if you prefer, Christmas, Midwinter, Winter Solstice, Yule,... to all members of this list and their families. -tony

12 years, 7 months

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Experience and capabilities of Burroughs Michigan Laboratories, SAGE/BUIC/MORE!

by COURYHOUSE＠aol.com

My old SAGE/BUIC Buddy email me off list list your email found good book in the stacks "Experience and capabilities of Burroughs Michigan Laboratories, Inc., Ann Arbor laboratory." Ed Sharpe - _www.smecc.org_ (http://www.smecc.org)

12 years, 8 months

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RFC Ethernet Bus Interface V1

by jgevaryahu＠gmail.com

On 22 Dec 2013 Al Kossow wrote: > I'm feeling the same way this morning trying to get a Catweasel to work in Linux. > It's just special that they stole someone else's PCI ID for the MK IV board. I'm not sure they stole it so much as randomly made up a pci uid/vid pair, which happened later to be used for that isdn card. Or its possible that the pci interface chip on the cw mkiv was a large overstock of china-bought chips which had been masked for the card. I have no idea. It can be worked around by forbidding load of the module for the isdn card in linux. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

12 years, 8 months

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A Short History of Computers in the Movies: Panel Lights, Spinning Tapes, and Lab Coats

by christian_liendo＠yahoo.com

Ok article http://blog.smartbear.com/geek/a-short-history-of-computers-in-the-movies-p…

12 years, 8 months

1
0
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Alphaserver 1000 diagnosis?

by dseagrav＠lunar-tokyo.net

(I think I asked this once before, but I can't remember the result and I can't find the thread in the archive) I have an Alphaserver 1000 that I would like to resurrect. It periodically hangs or reboots. When it reboots the error is usually "Machine check while in palcode". When it hangs, the hang is so severe the halt button does not work. Either way, it always happens within 20 minutes of booting. I ran all of the diagnostics you get by moving the CPU card jumper (cache memory tests, RAM tests) and they run for an hour or so with no error. (I am assuming the diagnostic halts on error instead of just looping again, is that correct?) During the course of these I moved the jumper to the wrong place and wiped out SRM, so I had to reload SRM from floppy using the failsafe loader. That worked. The SRM diagnostics will also run for as long as I want without error. Does anyone have any idea what's wrong here or is there some kind of XXDP-like thing I can run that will better test the machine?

12 years, 8 months

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Commodore Pet Video. Take 2

by terry＠webweavers.co.nz

More video revision madness. My Commodore PET, now in high definition. http://youtu.be/bBJNSX_DKvo Terry (Tez)

12 years, 8 months

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installing 2.11BSD on a pdp11/53

by Mark＠Misty.com

Hi, I've been making progress with my pdp11/53 project. Once I figured out how to get into Emulex F.R.D. mode from ODT, I was able to configure, format, and test my QD01 connected MFM hard drive. I'd like to try installing 2.11BSD. Although I've got a TK50 drive and controller, I don't have any tapes, or anything else here that can write to them. I have a Quantum DLT8000 SCSI drive, and an Emulex UC07 scsi controller. I was able to set the UC07 as the first TMSCP controller, and F.R.D on the UC07 reports the DLT8000 drive, and tests writing and reading to tapes loaded in the drive with no errors. I followed the 2.11BSD setup.ps and HOWTO file instructions to create a tape with dd, using a Sun Solaris SPARC server connected to the DLT8000. It seems silly trying to install an OS on a 70MB MFM drive from an 80GB DLT tape, but that's what I've got to work with so far, and my UC07 can't do TMSCP and MSCP at once, so no SCSI disks if I'm installing >from SCSI tape. Back on the 11/53, if I try to "BOOT MU0", the DLT tape spins for a few seconds encouragingly, but then I get: KDJ11-D/S E.03 Media not bootable Should I be able to boot the 2.11BSD boot block on an 11/53 from a TMSCP connected SCSI tape drive? The BSD setup.ps file includes bootstrap monitor examples for TM and TS tape drives. Do I need to use one of these instead of the normal 11/53 bootstrap ROM? Or, maybe there is something about block sizes and writing the tapes from Sun Solaris SPARC dd that means they aren't compatible? Alternate paths I could take might be installing 2.11BSD using VTserver, or maybe using PUTR or an emulator to set up OS directly onto a SCSI hard drive or zip drive for use on the 11/53, but I liked the idea of doing it with tape if I can figure out how. I have successfully booted the 11/53 >from an RT11 RX33 floppy I created with PUTR, for what it's worth. Mark -- Mark G. Thomas (Mark at Misty.com)

12 years, 8 months

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Heath H-11 (was Re: Why did microcomputers die off?)

by ethan.dicks＠gmail.com

On Mon, Dec 23, 2013 at 2:53 PM, steve shumaker <shumaker at att.net> wrote: > FWIW, an un-built H11 in original carton with several extra cards just > went for a single bid of $500 on EPAY over the weekend :( Wow! That sounds cheap. I have a built-up one that was hacked half-to-death by its first owner, a former boss of mine (he turned it into a hex-wide and made his own CD-interconnect for an RLV11) with at least one unsoldered serial card (no need to solder it since I have real DEC cards and they have standard, not Heath, pinouts to connect to the outside world). As an H-11 it works just fine even after I undid its previous "expansion", but I've never gotten the H-27 to boot on it (it works with an RXV21 and RX02 or with an RLV12 (now) and RL02). -ethan

12 years, 8 months

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MC68000 MOVMEM.A fast memory copy

by nw＠retrocomputingtasmania.com

On Tue, Dec 24, 2013 at 6:04 AM, Peter Corlett <abuse at cabal.org.uk> wrote: > If you had contrived the hardware design to have suitable incomplete decoding, > you could have exploited the movem hack that copies 56 bytes in 72 cycles, > which would give you north of 5MB/s on a 7.09MHz CPU. Thanks for the reminder, here is a reference for the curious, although this one does 48-bytes per loop cycle: https://groups.google.com/forum/#!msg/comp.sys.amiga.programmer/LpdAw8SZcdY…

12 years, 8 months

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cctech Digest, Vol 124, Issue 23

by michael.99.thompson＠gmail.com

> > From: Al Kossow <aek at bitsavers.org> > To: cctalk at classiccmp.org > Cc: > Date: Sun, 22 Dec 2013 09:08:12 -0800 > Subject: Re: RFC Ethernet Bus Interface V1 > On 12/22/13 8:43 AM, Al Kossow wrote: > >> Here is a first draft. Anything wrong/missing architecturally? >> >> > The one thing that I didn't think of was not handling 18 bit data transfers > on Unibus DMA, though now that I've thought of it adding the data parity > bits > to the buffering wouldn't be a big deal even if there wouldn't be any code > behind it. > > That is only an issue for two systems I can think of, KS10s and > Unichannel-15s.. > <snip> > Now, as usual whenever I think about this, I'll spend the next several > weeks > trying to get a tool chain running to actually get "hello world" running on > an ARM proto board or the equivalent on an FPGA board. Maybe it'll actually > work this time (I think I've tried doing this for several years running now > and gave up when after buying a prototyping board I couldn't get anything > to work). > >> >> Having an 18-bit Unibus interface for the KS10 is a great idea. You could easily put enough RAM on the board to emulate several Massbus disk drives and save the disk images on flash. Last year I made a Posibus Peripheral Emulator with an Actel SmartFusion FPGA/ARM http://www.ricomputermuseum.org/Home/equipment/pdp-8-l/making-a-posibus-per… I started with an Emcraft SOM module, used the free FPGA tool chain from Actel, and the FPGA and uC Linux image from Emcraft. Linux was running on the SOM when it was first powered up. http://www.emcraft.com/products/255 All I needed to to was make an interface board from the 3.3V logic in the FPGA to the Posibus in the PDP-8/L. My idea was to put the time sensitive logic in the FPGA and do everything else with a Linux device driver and application. You could do the same and use something like an M9014 module to connect to the Unibus. Once the circuit was debugged you could make a PCB that plugged directly into the Unibus and had a socket for the FPGA SOM. Since all of the Unibus logic is in the FPGA the single board could respond to many Unibus addresses and then emulate multiple peripherals at the same time. With a little FPGA logic change, and a bit of coding, you could run SIMH on the ARM in the FPGA and then emulate just about any CPU. -- Michael Thompson

12 years, 8 months

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Source for MB8866

by snhirsch＠gmail.com

Does anyone have a source for a Fujitsu MB8866 FDC chip? I've found some mention of it being a direct substitution for a WD1791, but the latter does not cooperate in this machine. Steve --

12 years, 8 months

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Free (only pickup) 2 HP9000 D-serie systems

by hp-fix＠xs4all.nl

Dave, Don't worry they've been spoken for. The new owner will pick them up tomorrow. And it's not the last parisc machine I have. But I find myself owing a lot of equipment which only future seems te be occupying storage space. So those have to go.. -Rik -----Oorspronkelijk bericht----- Van: "Dave Land" <xmechanic at landcomp.net> Verzonden: ?23-?12-?2013 08:43 Aan: "On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Onderwerp: Re: Free (only pickup) 2 HP9000 D-serie systems On 12/20/13 2:27 PM, Rik Bos wrote: > I've two HP 9000 D-series systems one D380 and the other a D280 (I think) > > Those are pa-risc systems running HP-UX 11i one is a dual processor system > the other has 1 proc. > > The D380 is loaded with a video card and several other cards. > > With some drives and other goodies, free for pickup only. > > Systems are located in the Netherlands near Groningen. > > If no one wants them I'll scrap them. > > > > -Rik > > > > > > > Man, I'd take them in a minute if I was in NL. You realize of course you could load these with HPPA-Linux now that we're getting the debian-ports archive refreshed with recent builds. :) See: http://parisc-linux.org or my site at http://landcomp.net:884/wp/ to see what has been going on recently. :) Hope if they are salvagable, you don't throw them out! Dave L. -- Dave Land Land Computer Service xmechanic at landcomp.net ICQ: 676030523

12 years, 8 months

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Apple Duo 230 Battery?

by earl＠baugh.org

Does anyone know of a source for a battery for an Apple Duo 230 laptop? I've got a Duo, and got it working, but no battery (works on AC). Ultimately, I'd like one battery "for show" that's all original (don't care if it works or not) and another I can "crack open" to restore/repair for actual battery power use... I've been watching various outlets for a while, and simply haven't seen/found any.. Thanks. Earl

12 years, 8 months

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Free (only pickup) 2 HP9000 D-serie systems

by hp-fix＠xs4all.nl

I've two HP 9000 D-series systems one D380 and the other a D280 (I think) Those are pa-risc systems running HP-UX 11i one is a dual processor system the other has 1 proc. The D380 is loaded with a video card and several other cards. With some drives and other goodies, free for pickup only. Systems are located in the Netherlands near Groningen. If no one wants them I'll scrap them. -Rik

12 years, 8 months

2
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Lobo Max-80 Question

by billdeg＠degnanco.com

> > Does anyone know exactly what was in the Lobo branded "SASI" external hard > drive? I've managed to convince my Max-80 to talk with a 10MB MFM drive > behind an Adaptec ACB-4000 bridge controller. It formats and verifies > without a complaint, accepts bad sector information and creates a working > CP/M volume. But, for some reason I cannot get it to boot from the hard > disk. > > It won't be the end of the world if I have to cold-start from a floppy, > but my curiousity is getting the better of me. The utility that writes > the boot sectors works fine - there's a brief flicker of drive activity > and no error messages. When I set the DIP switches to cold-boot the hard > disk, I can see the busy LED on the bridge board light up solid and the > machine freezes. Under normal I/O, the drive activity LED illuminates at > the same time as the one on the ACB-4000, but at boot I never see the > drive itself respond. > > I'm assuming that there's some incompatibility between the ACB-4000 and > the boot PROM. It would help to know what it's expecting to see. I've > been digging through the boot ROM sources, but nothing jumps out so far. > > FWIW, I've tried an Adaptec ACB-5500 controller (same results), a Xebec > 1410 (won't format or verify, but can be written/read) and a Xebec 1410A > (I/O errors). > > Steve Steve, What OS are you using? I understand that the original OS had an OS bug related to direct hard drive booting. I can check around if you have not yet resolved the problem Bill

12 years, 8 months

2
2
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8086 Emulator for Debugging?

by holm＠freibergnet.de

Hi, I have an unusal east german PC, an A7150 aka CM1910. This Computer isn't build out of a motherboard and Slot Cards, it hast Modules and a passive Backplane with something like a Multibus-1 Bus using DIN41462 connectors, one for the System Bus (MMS16) the other for a Localbus. The Computer contains a CPU with 8086/87 and two SZ80-A based Subsystems for Graphics (using a NEC 7220) and Disk IO (2 Floppies and at ST506 Interface). The Computer is running DOS3.3, CP/M86 and a Unix called MUTOS, an realtime System called BOS1810 is also available, but I don't know an western equivalent for it. The 1810 ic comming from the soviet name of the 8086 Chips, they are named K1810xx. Here at robotrontechnik.de is a page about this Computer http://www.robotrontechnik.de/index.htm?/html/computer/a7150.htm buit it is in german. Here are some pictures of cards from this machine: http://www.robotrontechnik.de/index.htm?/html/computer/a7150.htm Ok, so far so good. This Machine is running DOS, but it isn't that much XT Compatible. The Graphics are emulating CGA (doublescan) for this mode but are capable to do 640x480 in 256 Colors. The Processor is clocked with 4,9 Mhz, which schould be a little faster than a average XT but the Bus arbitation brings in some more delay. The BUS is capable of multimastering which isn't used in this machine but takes time.. I have at least 3 of this machines, they aren't that rare in the former GDR and the Eastern Block. I've tried to put in a NEC V30 CPU which is working principially, but the BIOS in the Machine rejects it later. The Machine Checks are simple to precise. For Example the ACT Acceptance Test reports a bad PIT Timer (8254) since it Checks the correctness of the timer with some loop of instructions >from the CPU. The BIOS of this machine consists of 4 2764 EPROMS and it therefore 32Kbyte long. So far the Intro, Now I wan't to disassemble the BIOS with the checks to build a version that's capable to run on a V30. Why? Just for fun... I've now looking for available 8086 emulators to load end step trough the BIOS code while looking what happens there (I'm not a x86 guy at all). Found two emulators on the Net (emu8086 and I8086emu) both both of them aren't capable to load a binary file as BIOS and step trough it. The emu8086 has'nt any capability to load the code in that are that I want f000:f800 until the end of the 1MB, at least I found no way to do this an dgot no answer to my question to the author and the 2nd one wich runs on Windows and Linux (FreeBSD to) as long as they are 32BIT OS's seems to support not more than 64KB Code in the last available release. So the final question is: Does someone know wo a software that can do that? Kind Regards and a merry Christmas, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

12 years, 8 months

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S-100 PCBs available

by LYNCHAJ＠YAHOO.COM

There are still three (3) of the S-100 bus extender boards left if you are looking for them. These are the nice ones with a logic probe, LEDs, speakers, fuses, lead clip-ons, etc. http://s100computers.com/My%20System%20Pages/Extender%20Board/Extender%20Boa rd.htm The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $12.75 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. There is also one S-100 Parallel IO V2 PCB (limited edition) available for $30. These are a limited special order and have all the patches and improvements from the last batch. No cuts or jumpers required. Please send a PayPal to LYNCHAJ at YAHOO.COM with the subject "S-100 bus extender" or "S-100 Parallel IO V2" and I will send your board(s). Thanks and have a nice day! Andrew Lynch

12 years, 8 months

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Wargames magazine

by dgriffi＠cs.csubak.edu

Someone went through the trouble to identify the magazine in the movie Wargames that set off the events in that movie. http://mw.rat.bz/wgmag/ -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

12 years, 8 months

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Apple Duo 230 Battery?

by earl＠baugh.org

Brad, Yeah, if I can FIND one, I figured the folks at AHCS could help me rebuild it. I'm probably going to have a "big" rebuild laptop battery task, once I at least find batteries for all the Mac laptops I got on that palette of Macs. However, sadly, the Duo 230 is the ONLY one that didn't have even ONE battery pack in the pile. I've been hunting on ebay and various other sites, but aside from one or two units (and one full unit and docking station) I've not seen any even LISTED for sale... I'm still interested in 2 of them, if anybody knows of a source... Earl > Message: 18 > Date: Sat, 21 Dec 2013 02:46:03 -0500 > From: BE Arnold <bearnold at outlook.com> > Subject: Re: Apple Duo 230 Battery? > > Many battery packs of that time are nothing more than a bunch of NiCad sub-C cells. If we could determine that it is such, I can build you one. > Can you bring one to the meeting today? > > >> On Dec 21, 2013, at 12:34 AM, "Earl Baugh" <earl at baugh.org> wrote: >> >> Does anyone know of a source for a battery for an Apple Duo 230 laptop? >> I've got a Duo, and got it working, but no battery (works on AC). >> Ultimately, I'd like one battery "for show" that's all original (don't care >> if it works or not) and another I can "crack open" to restore/repair for >> actual battery power use... >> >> I've been watching various outlets for a while, and simply haven't >> seen/found any.. >> >> Thanks. >> >> Earl

12 years, 8 months

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Looking for: one (1) Apple II keyboard keyswitch

by derschjo＠gmail.com

I've been slowly restoring an Apple II (original) to working condition and my last hurdle is getting the keyboard working reliably. When I started a handful of keys didn't work, worked intermittently or had debouncing problems and I managed to get them working fairly well again by carefully working in some contact cleaner into the switch. (It's a real PITA since these things are solid blocks of plastic and cannot be disassembled.) I have one key left that I cannot make work through this method. I'd rather not sacrifice another keyboard just for a single keyswitch; does anyone have any of these going spare or have a "salvage quality" Apple II keyboard I could pull a switch from? (Or does anyone have better repair advice for these switches?) Thanks as always, Josh

12 years, 8 months

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Looking for HP 12597A 8bit dup interface

by hp-fix＠xs4all.nl

I'm looking for a HP 12597A 8 bit dup interface for the HP 2100, 21MX, 1000 series. Want to connect my tape punch to my HP 2100S cpu, if someone wants to part >from it contact me. -Rik

12 years, 8 months

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Emulex P4000 software

by b4＠gewt.net

Afternoon, I have a couple of these (in need of PSu repair...rigged up a temporary ATX supply). I managed to find the software on Emulex's FTP site...but it's password protected in a zip file. Does anyone have the software or the password? I'm currently bruteforcing it, but it could take awhile... -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 8 months

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Walt Mossberg's last article at the WSJ. the products that changed the digital industry

by christian_liendo＠yahoo.com

I don't agree on everything, but to each their own http://online.wsj.com/news/articles/SB1000142405270230485810457926431315580… 1. Newton MessagePad (1993) 2. Netscape Navigator (1994) 3. Windows 95 (1995) 4. The Palm Pilot (1997) 5. Google Search (1998) 6. The iPod (2001) 7. Facebook? 8. Twitter (2006) 9. The iPhone (2007) 10. Android (2008) 11. The MacBook Air (2008) 12. The iPad (2010)

12 years, 8 months

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Merry Christmas! (a little early)

by sales＠elecplus.com

* * * * .--. \/ \/ \/ \/ ./ /=* \/ \/ * * ... (_____) \ ^ ^/ \ \_((^o^))-. * (o)(O)--)--------\. \ ( ) \ \._. | | ||================((~~~~~~~~~~~~~~~~~))| ( ) | \ \__/ ,| \. * * * * * * ./ (~~~~~~~~~~~) \ * ||^||\.____./|| | \___________/ ~||~~~~|~'\____/ * || || || || A || || || | * <> <> <> <> (___||____||_____) ((~~~~~| * Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6932 - Release Date: 12/18/13

12 years, 8 months

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