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

by yoda＠isr.ist.utl.pt

Hi. I recovered a couple of Xerox tape drives for the Daybreak workstation, but I can't get any of them working on my PC. Does anyone have the specs for it? Is it a true QIC drive? Can anyone give me a hand on getting it to work with linux ftape drivers? Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and PhD Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

26 years, 7 months

3
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Xerox D-series workstations Tape Drive

by aek＠spies.com

"Is it a true QIC drive?" It uses a floppy disc interface.

26 years, 7 months

1
0
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Northstar CPU Card in Regular S100 Bus?

by wirehead＠retrocomputing.com

I have a weird question. Could a Northstar MPU-A be used in a normal S100 bus chassis with other cards to provide console, disk, i/o, memory functions? If no, why not? If yes, what issues can arise from doing this? The reason I ask is that I have a nice clean empty TEI chassis, a Northstar CPU cards, some memory boards, an SMB multifunction i/o card and a Disk Jockey 2D. I'm sure the thing would end up being fairly weird, but I don't care about that. Just exploring ideas for misc hardware sitting around my basement. Anthony Clifton

26 years, 7 months

2
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Weekend finds - uVAX II w/ SCSI!

by cmcmanis＠mcmanis.com

This weekend I saved most of a uVAX II from the scrapper. It is a configuration I didn't recognize with two BA23's. One "normal BA23 and then a Q22 jumper into a second BA23. The rack "sleeves" were connected across the back with a hinged door that held all the cabinet hardware. Pretty neat. Anyway, in what was a total shock, the thing has a "Transitional Technology Inc, QTD-1" Q-bus SCSI controller! If this thing works I'll be in heaven since I've yet to get a working SCSI disk controller for my Vaxen. This looks kind of like a Viking controller, except it has several key (and hopefully really good) differences: 1) It has a 10 pin header that looks like the DEC standard DLV-11 type serial port (rather than the viking "in the scsi cable" port.) 2) It has an NCR53C90 SCSI interface, and 18 nat'l semi 75176BN chips wired up to the 50 pin connector. (I'm hoping these are differential drivers for FAST SCSI II drives) 3) Then it has a Motorola M68901 a covered 40 pin chip (probably the processor) and one RCA 6264 ram chip and a 27C256 EPROM with the "1.7a" firmware in it. Has anyone used one of these? Do you have docs on it? Would you be willing to FAX me the setup information? (I've got a 9GB SCSI drive just waiting for this type of information :-) Other interesting bits was the KA630 + 2 8MB memory boards (M7609), a DHV-11, an M8020 SLU, and an SDI controller (two board set.) The BA23's suffered some damage when they were ripped from the rack (which I didn't save) but there seems to be a salvagable TK50 in one of them and a Q/Q backplane. (The second BA23 was all Q/Q slots! --Chuck

26 years, 7 months

5
5
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Good Week

by jrkeys＠concentric.net

Well this week has been a good one in that I picked up a very large number of manuals for all types of hardware and software from Kim-1's to early Packard Bells. I got over 20 - 2600 cartridges plus 10 for the Vectrex. I also added over 15 new mousepads to the collection. I got a NEC StarLet portable computer model PC-8401A that needs work. An HP Integral PC with a HP 82916A 1mb memory module, a HP 82919A option 001 Serial interface module, HP Rom Module UX/RO Rel 5.0 unit turns on both nothing on the screen. I picked up a Tektronic type 576 Curve Tracer that needs work. I also got a Commodore 1351 mouse and an Amiga mouse at the same thrift. I go 3 notebooks that are not 10 years old yet but they were free (1-286 & 2-386's). I also got for free a Sears TV/Monitor from June 1984 that still works. All in all the week was very good for saving items and building more for the museum.

26 years, 7 months

2
2
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Z-Star 433 VL info/parts

by SeaMasterZ＠aol.com

Hello, I have a Zenith Data Systems Z - Star 433 VL, which needs the AC-375-A power supply. It's a 22 VDC, 1.27 amp unit, and has a very unusual power plug ... 4 holes in the center and 4 slots around the perimeter ... the computer is a TYPE NTB 003, M/N: ZPD-4834-KF, serial # 4MSBLK000406 Does anyone know about this computer? Is it capable of running win 95? If anyone has a power supply or battery for sale I would like to buy it/them, should either of the laptops work I would use them for word processing away >from the main unit. Ray Cook SeaMasterZ(a)AOL.COM

26 years, 7 months

1
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Need a PDP-11/34 operators panel?

by jimw＠agora.rdrop.com

...or two? Trying (yet again, or is that still?) to make some room on the 'Garage' for winter projects, and came across a couple of potentially interesting things which could use a home... Two PDP-11/34 operator panels. These are NOT the panels with the numeric displays and keypad. These panels have three LED status indicators, two switches (boot/init & run/halt), and a power selection dial. I don't recall where/when I picked them up, and my '34 has it's panel, so... If you have a machine that needs a panel, you can have one for the cost of shipping. (unless you feel real guilty and want to throw in something for trade) If you just want to hang it on the wall, it'll cost you $25.00/ea or an interesting (and useful) trade. -jim --- jimw(a)computergarage.org || jimw(a)agora.rdrop.com The Computer Garage - http://www.computergarage.org Computer Garage Fax - (503) 646-0174

26 years, 7 months

1
0
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Apple ][ + but no Floppies

by CLASSICCMP＠trailing-edge.com

>> It's a TTL device, not serial. >The one does not preclude the other :-) >The Apple mouse is TTL, and it's not serial (it's quadrature outputs as >you said) >A PC 'serial mouse' is serial (of course) and it's not TTL, it works at >(approximately) RS232 levels For some of us (including me!), our first brush with "serial" was 60mA current loop data, a standard that I see you've ignored :-) With some of the loop supplies being able to go up to 50, 75, or even 100V in "open circuit" configuration, I'd *hate* to see what would happen to TTL connected directly! (I have to admit that I got started late enough that optoisolators were the preferred way to go from current loop to other signaling levels... but I do remember polar relays.) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

2
1
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Apple ][ + but no Floppies

by pete＠dunnington.u-net.com

On Dec 12, 10:41, Ethan Dicks wrote: > I didn't know that the PERQ used a sync-serial mouse at TTL levels, but > are you sure about the PS/2 mice? After all, there is an adapter you can > stick on mice to adapt them from 9-pin serial to PS/2 connector, and it's > only wires, no active components. Those which are completely passive only work on certain dual-function mice, in which the PIC can detect the change -- by detecting the voltage on a different pin -- and act accordingly, changing the protocol. In general, you can't turn any old serial mouse into a PS/2 mouse, nor vice-versa. To further confuse, there are at least two pinouts for such adapters. However, there are some active adapters, which themselves contain a processor (usually a PIC) which will convert the serial protocol into PS/2 protocol. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 7 months

1
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Apple ][ + but no Floppies

by ethan_dicks＠yahoo.com

--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > > It's a TTL device, not serial. > > The one does not preclude the other :-) Fair enough. I wasn't specific. I only meant that it used +5/gnd as opposed to +/-12 (EIA levels). > A PERQ 'Kriz mouse' is TTL (all signals are at TTL levels) and it is > serial (synchronous clock/data) interface. A PS/2 mouse is also TTL and > serial (but a different flavour of serial). I didn't know that the PERQ used a sync-serial mouse at TTL levels, but are you sure about the PS/2 mice? After all, there is an adapter you can stick on mice to adapt them from 9-pin serial to PS/2 connector, and it's only wires, no active components. To continue flogging this dead horse, VAXstation mice are serial but not strictly RS-232 serial (RS-423?) and Sun mice are yet another form of serial mouse. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

2
1
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by edick＠idcomm.com

It's likely they're monochrome (not to suggest IBM-PC-compatible monochrome) in some high-resolution format if they have only one BNC input. Dick -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Sunday, December 12, 1999 10:28 AM Subject: Re: Hewlett Packard A2094 Monitor (Standard RGB ?) >> Also there was several HP 20 inch mono monitors ready to be tossed in the >> dumpster, I thought these were Composite video inout because they had one >> BNC connector on them, but likely some sort of fixed Frequency input.. > >They _are_ composite video (meaning that they take one signal which >combines the video signal, horizontal sync, and vertical sync). They are >also fixed-frequency and they almost certainly don't work at TV rates but >at something much higher. > >-tony >

26 years, 7 months

2
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Weekend Classic Trip Report

by wirehead＠retrocomputing.com

Just wanted to let folks know the results of my Saturday trip. I left Des Moines and drove to Kansas City, where I met Mike McFadden. Mike's an extremely pleasant, helpful fellow who showed me where to find good surplus in KCMO. I'll DEFINITELY be visiting KC more often! I went there to pick up the VT220s he advertised on ClassicCmp. I walked away from one surplus place, having spent only $10, and got (1) M7606 MicroVaxII CPU board (spare for my MVAX II) (1) Cisco IGS Multiprotocol Router/Bridge and a couple miscellaneous bits and pieces. Not bad for $10. Then I drove to Lincoln, NE and visited Bill Richman, who recently posted some items for auction. Another really nice guy. Picked up the Tek 532 and the aluminum cart it sits in. I also picked up some other spiffy items, which I'll describe later. So, the entire trip (including gas) cost me $90 (less than the cost to ship the items), got me out on the road for a few hours of relaxing driving and allowed me to bring home some unusual items that are scarce or non-existent in Des Moines. Anthony Clifton

26 years, 7 months

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Hewlett Packard A2094 Monitor (Standard RGB ?)

by edick＠idcomm.com

Be careful, now! Don't agree to sell the monitor "cheap" if that means throwing good money after bad. My experience with persons wishing to buy something "cheap" means it is supposed to cost them less than it costs you. Here you're asked to risk paying $160 for a $50 video card with what apparently amounts to a customized EPROM. I'd not buy one of these unless you can, at a minimum, (a) return the card if it doesn't work as you expect, (2) ship the monitor to someone elese who wants it with advance payment in the amount of your purchase PLUS the cost of freight, which will be MUCH more than you pay the monitor. The packing task will be enough of a pain that no one should complain about paying these costs. My experience has been that collectors of old hardware won't pay these actual costs routinely, though they might if the item in question is relevant to a specific project in progress. Good luck! Dick -----Original Message----- From: Mike Ford <mikeford(a)socal.rr.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Sunday, December 12, 1999 1:55 AM Subject: Re: Hewlett Packard A2094 Monitor (Standard RGB ?) >>4. According to specs this monitor will support 3D graphics directly with >>the right video card. >>5. According to Specs it supports an impressive 1158 X 870 resolution. >>6. Seems like I get a good working 19 monitor for only $160.00 >> >>Negative Points: >>1. Its 6 years old. >>2. Don;t know how many hours are on it. >>3. History is unknown.. >>4. The Sucker is Big and weighs a ton.. >> >>So Should I do this or Not ? > >Absolutely, if it doesn't work out sell it cheap to one of us. Item 4 >though is nuts, the monitor has NOTHING to do with 3D. The only 3D monitors >I know are by NEC. ;) > >Negative 4 is very true, and these old monitors suck juice (AC juice) and >make heat. > >Look for some reviews of the SaturnGL before you jump in > >

26 years, 7 months

1
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Apple ][ + but no Floppies

by ethan_dicks＠yahoo.com

--- ndiablo(a)diablonet.net wrote: > Yep, the mice that were used in the Apple IIe/IIc (others as well?) was > exactly the same as that used in the Mac 128/512/Plus, and Lisa (which > I believe was actually just a serial mouse? i might be wrong). The original Apple mouse passes raw quadrature data to the interface, just like an Amiga mouse or a MS Bus Mouse. It's a TTL device, not serial. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

3
2
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by musicman38＠mindspring.com

I have come to the conclusion that its to costly to use the HP A2094 monitor on my PC, I can purchase a nice 17 inch Monitor at about the same cost to get a special video card which will never be fully compatible with all my applications. However I just realized that this monitor was possibly intended for the HP Apollo 400 workstation that I got at the same warehouse. Can anybody verify this ? Also there was several HP 20 inch mono monitors ready to be tossed in the dumpster, I thought these were Composite video inout because they had one BNC connector on them, but likely some sort of fixed Frequency input.. Phil..

26 years, 7 months

2
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Announcing: The RSX-11 Freeware CD set

by CLASSICCMP＠trailing-edge.com

With thanks to many on this list for their encouragement and advice, I am proud to announce the availability of the latest volume of PDP-11 freeware: THE RSX-11 FREEWARE CD SET V2.0 a two-CD set containing three decades' worth of RSX-11 freeware. Please see http://www.trailing-edge.com/www/freeware.html for more information on this two CD-ROM set and other PDP-11 freeware volumes, or go straight to http://s1.amazon.com/exec/varzea/ts/exchange-glance/Y02Y3413832Y7998345 to order through Amazon.com. As always, this freeware is also available (for free) over the net. See http://www.trailing-edge.com/www/freewareFAQ.html for these and other sources of PDP-11 freeware. In brief: Format of the RSX-11 Freeware CD set, V2.0: This is a two-CD set. The first CD has a standard ISO9660 filesystem, and is directly readable on a PC, Mac, Linux/Unix workstation, or VMS box. The second CD has a ODS-1 filesystem, and is filled with ODS-1 virtual disks. The second CD is ideal for direct access while running RSX-11 on a PDP-11 (real or emulated). Contents of RSX-11 Freeware CD set, V2.0: Symposia/SIG Tape collections RSX77B Fall 1977 San Diego RSX78A Spring 1978 Chicago RSX78B Fall 1978 San Francisco RSX79A Spring 1979 New Orleans RSX79B Fall 1979 San Diego RSX80A Spring 1980 Chicago RSX80B Fall 1980 San Francisco RSX81A Spring 1981 Miami RSX81B Fall 1981 Los Angeles RSX82A Spring 1982 Atlanta RSX82B Fall 1982 Anaheim RSX83A Spring 1983 St. Louis RSX83B Fall 1983 Las Vegas RSX83B2 Fall 1983 Las Vegas, second volume RSX84A Spring 1984 Cincinatti RSX84A2 Spring 1984 Cincinatti, second volume RSX84B Fall 1984 Anaheim RSX85A Spring 1985 New Orleans RSX85B Fall 1985 Aneheim RSX86A Spring 1986 Dallas RSX86B Fall 1986 San Francisco RSX87A Spring 1987 Nashville RSX87B Fall 1987 Anaheim RSX88A Spring 1988 Cincinatti RSX88B Fall 1988 Anaheim RSX89A Spring 1989 Atlanta RSX89B Fall 1990 Anaheim RSX89EUR Europe 1989 Den Haag RSX90A Spring 1990 New Orleans RSX90B Fall 1990 Anaheim RSX91B Fall 1991 DECUS 11-nnn Entries 110322 MARGOT MACRO RSX11M MACRO SIB 00AMQ 110593 Control C Trap Handler for FORTRAN Version: V1.05, September 1982 110594 CPU Usage Monitor Display Facility for RSX-11M Version: X02.05, August 1984 110615 CPMRSX: CP/M to DEC Disk Translator for RSX-11M Version: V2.1, December 1984 110626 XLISP: An Experimental Object Oriented Language Version: V1.1, April 1983 110632 Task Image Zapper & Other Goodies Version: Spring 1985 110680 RSX-11M-PLUS System Accounting Reports with Datatrieve Version: October 1983 110681 MM: A Mastermind Game Version: December 1982 110689 Active Task List Scan Version: V01090 110748 BUG: A Debugging Tool Used on Existing IAS Tasks Version: V2.0, June 1984 110750 TEM: A Terminal Emulator for RSX-11 Version: 88.104, May 1988 110760 COMPOSE: VT200 Custom Character Set Generator Program Version: V1.0, October 1984 110767 DFL: A Program to Dump Physical Blocks from Floppy-Disk Version: V1.0, October 1984 110822 VT-200 SET UP Version: V1, September 1985 110823 Task to Task Communications Version: V1.01, November 1985 110836 ReGIS to HP-GL Conversion Program Version: V1.J, December 1985 110849 FIGure - A Calculator for RSX and VMS Version: V86.080, June 1986 110858 EMPIRE Version: October 1986 110870 ECR: Enhanced Console Routine Version: 1, April 1987 110871 IAS KERMIT Version: April 1987 110873 FORTRAN Aids and Tools Version: 1, April 1987 110887 CLE Version: 6.2 110896 MODES Version: 3, August 1986 110898 Finger/RSX Version: December 1987 110899 FDC; Floppy Diskette Copy Version: 1, December 1987 *And* the latest version of SRD from Johnny Bilquist -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

1
0
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by musicman38＠mindspring.com

>There are special video cards that can support a fixed frequency monitor >even in text modes, but I'm told that they cost about $200. Thanks everyone for the great information. I have now found a Fixed Frequency VGA Card that supports all Fixed Freq monitors for $139 to $159 in PCI or AGP.. http://www.si87.com/Products/Videocards/saturngl.html This would resolve any problems using this monitor. But the big question now, is this monitor really worth the cost of a new Video Card ? Or does it make more sense to just buy a new monitor ? Good Points: 1. Its a Big 19 inch monitor.. 2. It has an aperture grille, used in high end Sony type monitors. 3. Its an HP monitor its clean and no screen burn. 4. According to specs this monitor will support 3D graphics directly with the right video card. 5. According to Specs it supports an impressive 1158 X 870 resolution. 6. Seems like I get a good working 19 monitor for only $160.00 Negative Points: 1. Its 6 years old. 2. Don;t know how many hours are on it. 3. History is unknown.. 4. The Sucker is Big and weighs a ton.. So Should I do this or Not ? Phil...

26 years, 7 months

6
10
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FS: VMS 6.2 Distro & Docs

by kyrrin＠bluefeathertech.com

This is being CC'd to both port-vax and the CLASSICCMP lists. I have available a complete (and I do mean complete -- I've even got license PAKs!) distro set for VMS/VAX 6.2 on CD-ROM. This has not only the VMS install, but also a whole blortload of extra software from the 'Consolidated Software Distribution' kit. There's about 12-13 CD's total. Want more? How about a complete documentation set, also for VMS 6.2. This is the new DEC 'White Wall' (paperbacks in those goofy boxes), and I remember taking them out of their shrink wrap so I'm pretty sure everything's there. All the stuff could be shipped, but the books will make it heavy. I guesstimate a minimum of 30 pounds (conservative). I'm open for offers. Best offer with the earliest timestamp on the reply gets it. Be ready to cover shipping as well if you're not local (Kent, WA, southeast of Seattle). Thanks in advance. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

26 years, 7 months

1
0
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Apple ][ + but no Floppies

by ndiablo＠diablonet.net

Yep, the mice that were used in the Apple IIe/IIc (others as well?) was exactly the same as that used in the Mac 128/512/Plus, and Lisa (which I believe was actually just a serial mouse? i might be wrong). -Sean Caron (root(a)diablonet.net)

26 years, 7 months

2
1
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by ndiablo＠diablonet.net

I could almost tell you for sure that the monitor was indeed designed for use with the Apollo workstations that you're mentioning... or if not that, perhaps some that came later in the line. :) -Sean Caron (root(a)diablonet.net)

26 years, 7 months

1
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by edick＠idcomm.com

One fellow who bought a half dozen of these workstations put them in his pickup, opened the boxes up, took out the memory (apparently and odd flavor), then drove over to the dumpster and tossed the workstations/servers in the dumpster and left. Dick -----Original Message----- From: ndiablo(a)diablonet.net <ndiablo(a)diablonet.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, December 11, 1999 9:25 PM Subject: Re: Hewlett Packard A2094 Monitor (Standard RGB ?) >I could almost tell you for sure that the monitor was indeed designed for >use with the Apollo workstations that you're mentioning... or if not >that, perhaps some that came later in the line. :) > >-Sean Caron (root(a)diablonet.net)

26 years, 7 months

1
0
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Hewlett Packard A2094 Monitor (Standard RGB ?)

by edick＠idcomm.com

You can verify this yourself by visiting the HP web site. HP bought APOLLO in '88-'89 or thereabouts. Those HP workstations that have been selling around here for about $25 work with a similar monitor though I'm not certain whether it's exactly the same number. The fellow who's got them gets $25 per workstation/server and $25 per monitor. I think he's sold only one of these monitors (to me) this past year. $5 would better reflect their relative usefulness. Dick -----Original Message----- From: Phil Clayton <musicman38(a)mindspring.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, December 11, 1999 8:33 PM Subject: Re: Hewlett Packard A2094 Monitor (Standard RGB ?) >I have come to the conclusion that its to costly to use the HP A2094 monitor >on my PC, I can purchase a nice 17 inch Monitor at about the same cost to >get a special video card which will never be fully compatible with all my >applications. > >However I just realized that this monitor was possibly intended for the HP >Apollo 400 workstation that I got at the same warehouse. > >Can anybody verify this ? > >Also there was several HP 20 inch mono monitors ready to be tossed in the >dumpster, I thought these were Composite video inout because they had one >BNC connector on them, but likely some sort of fixed Frequency input.. > >Phil.. > > >

26 years, 7 months

1
0
0 0

Apple ][ + but no Floppies

by ethan_dicks＠yahoo.com

--- Mike Ford <mikeford(a)socal.rr.com> wrote: > Look at the stuff on the Apple II emulation web sites, they run down the > full treatment to shk (shrink) disc images... Cool. That's the kind of pointer I needed. > I plan to use a trio of Apples for my stuff, a IIe card in a LC, a IIgs, > and a IIc+. The first two via Appletalk to a Appleshare 3.0.4 server. Appletalk for the IIgs? I didn't know. Was there ever Appletalk for older machines (it would have to be under ProDOS, of course)? > Many authors such as yourself have been making updates and releasing their > older software to the public. You might want to think about that too. The > Apple II is still a good machine for the younger kids and the more software > the better. I was only one of the independent authors. There were others who worked on the projects, too. It was a one-man show with a room full of 1099 independent contractors banging away on stuff for the Apple II, BBS Micro, C-64 and, eventually, the PC (we even had PCjr stuff for a short while). The company was "Software Productions"; we sold our stuff under the Reader's Digest name - "Micro Mother Goose", "Micro Habitats" and "Alphabet Beasts and Company" were our best selling titles. We supported mice when mice were rare. I still have our original Apple II mouse card - $250 MSRP in 1984, replacement mice - $35 each. These were the identical kind used with the original 128K Mac. If I ever run across my old boss, I'll ask if he is willing to release our old stuff. I don't anticipate a problem, but I need to ask first. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

3
2
0 0

Nova Rescue/Prime 2550

by chris＠mainecoon.com

I'm pleased to report that thanks to the efforts of Marvin, three DG Nova fours, two expansion chassis, three disks (including two DG SMD drives) and three tape drives were saved from heading to scrapsville. Details (and a few photos) can be found at http://www.mainecoon.com/rescue.html. There's also a bit about the Pr1me 2550 I purchased from John as well... :-) best, Chris -- Chris Kennedy chris(a)mainecoon.com http://www.mainecoon.com PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97

26 years, 7 months

1
0
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DEC core question

by ethan_dicks＠yahoo.com

--- Joe <rigdonj(a)intellistar.net> wrote: > OK all you DECheads, here's a question for you. I have a DEC core memory > board that says H213 on the handle. A stick on label on the back says "4K > x16" but etched into the board it says "16k x 19 bits". Why the > difference? (I know about parity so forget the extra three bits.) Can you see the core mats or is there an opaque cover? I have some stuff that may be the same thing you have (from an 11/05). Mine is marked similarly, but three of the mats are blank. I suspect that the same PCB could be used in several machines, including an 18-bit machine w/parity, depending on how many mats were wired. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

2
1
0 0

KDA50 cableset... sorry! :)

by ndiablo＠diablonet.net

Sorry about my omission from the previous message; I meant the card-to-drive cabling, not the card-to-card cabling. Thanks! -Sean Caron (root(a)diablonet.net)

26 years, 7 months

1
0
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Weirdest RK05 problem I have *ever* seen.

by dylanb＠sympatico.ca

-----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, December 11, 1999 6:57 PM Subject: Re: Weirdest RK05 problem I have *ever* seen. >> >> I have not even begun to look at the drive yet but I thought I would float >> the problem here in case someone has actually had something happen as weird >> as this. >> >> PROBLEM: Both drives don't work.. only "Write Protect". Is you tip either >> drive on it's left side they work fine, (blower starts up, lights, >> everything..). [not the right side] > >Are you saying that tipping one drive on its side makes _both_ of them >come up? > No.. even weirder.... Take any one drive (they are not connected together)..and plug it in. The 5V supply works (Write Protect).. nothing else happens. Flip EITHER drive on it's left side and it happily comes up! I can't believe both drives have the same problem. Also, both drives have a bad -15V when mounted.. flip it on its side and away it goes... >>From what I rememberm the blower is controlled by a relay on the relay >board on top of the PSU chassis (rear left of the drive). The other relay >controls the spindle motor. The blower relay is controlled by either ACLO >or DCLO (I forget which), which, of course, is bussed between the drives. >I'd start there -- sounds like something is pulling that line active, and >turning off the relay. > Yes.. the control logic won't let anything come on unless all three supplies are functioning right.. -15V is the problem. >> >> Looks to be PSU problem but I have not popped the top yet. > >Possibly, although WrtProt working implies the PSU is doing something. Yes +5V is okay on both. > >> >> In all the years I have worked on RK05s I have never seen this! > >Ditto... > I have 13 right now but 11 are 2 hours away.... so I have to get these running quickly to test the 8A.. (it seems to be running). >Do you have the prints? I'd certainly start by looking at that relay >board (take care -- live mains!!!) and the signals that control it. > Yes.. but again far away - storage (my home is filled with older PDP-8 stuff right now).. I went on highgate and had a look. It will be nice to have a print set for everything next weekend (no more travelling). john PDP-8 and other rare mini computers http://www.pdp8.com >-tony > >

26 years, 7 months

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DEC core question

by rigdonj＠intellistar.net

OK all you DECheads, here's a question for you. I have a DEC core memory board that says H213 on the handle. A stick on label on the back says "4K x16" but etched into the board it says "16k x 19 bits". Why the difference? (I know about parity so forget the extra three bits.) Joe

26 years, 7 months

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Just received the first of the PDP-8As

by dylanb＠sympatico.ca

Just came in last night: PDP-8A500 with: M8315 \ M8317 > CPU, clock, serial, parallel M8316 / H219B - 16K core M8365 - printer M7104 \ M7105 > RK8E RK05 Disk Interface M7106 / Also got two RK05 drives with the M993 RK05 cable. I got a disk pack filled with diagnostics for all the Dec devices and Dec x/8. Pretty cool. It looks to be in running condition. A few 8Es and another 8A coming in this week. Next weekend a UFO will be dropping off 50+ PDP8s and PDP11s. john PDP-8 and other rare mini computers http://www.pdp8.com

26 years, 7 months

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Motorola 68k family ( was Re: Comparison of system specs. )

by ndiablo＠diablonet.net

Well, I can't say much from the Amiga side, but after playing around with Macs for a number of years, I don't think there were really any instances where instructions were _removed_ that broke software... I do remember there were a few specific issues when features were _added_ and a lot of software broke, like when the 68020 macs were introduced with onboard caches that broke some software that used self-modifying code, and when the 68040 was introduced with its onboard caches, I think it ended up breaking some software as well. This is all mac-related stuff, though, so I don't know if there were ever any similar issues over on the Amiga side. -Sean Caron (root(a)diablonet.net)

26 years, 7 months

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Two PDP-8A questions

by dylanb＠sympatico.ca

-----Original Message----- From: Ethan Dicks <ethan_dicks(a)yahoo.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, December 11, 1999 5:40 PM Subject: Re: Two PDP-8A questions > > >--- John B <dylanb(a)sympatico.ca> wrote: >> I hope someone can answer these questions... >> >> Where does the 16 pin front panel connector plug into the main options board >> and which way? (There are two sockets on the Options board) > >It doesn't. It plugs into a 16-pin header/ribbon cable that comes from the >backplane. The two empty sockets are for user boot roms. > Thank you. I don't get books on all these systems until next weekend. >> Where does the main serial line plug into (which port on which board)? > >The DKC8AA (I don't have the handle number here) - it has two Berg connectors >facing front (for the full front panel) and three facing backwards - the >one closest to the edge fingers is the serial connector. The other two, >for the sake of completeness, are 12-bits in and out. The output port can >be used to drive an LA-180, but the data is inverted from normal and the IOTs >are not the same. With a recompiled driver, however, you could drive a >parallel printer with it. > Okay thanks.. I will work on the RK05s now.. they both have a bad -15V supply...but bioth work fine when tipped on their left hand side. >Do you need a copy of the 1977-1978 microcomputer handbook? I have a spare. >Let's talk. > >-ethan > > >===== >Infinet has been sold. The domain is going away in February. >Please send all replies to > > erd(a)iname.com >__________________________________________________ >Do You Yahoo!? >Thousands of Stores. Millions of Products. All in one place. >Yahoo! Shopping: http://shopping.yahoo.com >

26 years, 7 months

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M865/M833 questions (and serial cable info)

by ethan_dicks＠yahoo.com

In re-reading the PDP08 FAQs, I came across a mention that the older KK8E cards (three digit handle numbers) are somehow "broken". Can anyone elaborate? I have a couple of KK8E sets, one with the M833 timing module and M865 20mA- only TTY interface. What might be odd about them? I need to be able to use the M865 as I only have one M8650 KL8J interface (with two cables - one EIA and one 20mA, but the 20mA cable is missing the Berg housing - it's a bundle of loose connector pins on the interface end). Speaking of cables, I was attempting to build a new cable for my PDP-8/a and re-discovered a minor detail - the DKC8AA has this interesting feature - the EIA input and the TTL input to the serial hardware are not connected at the board level. There is this loopback wire that must be installed on the Berg connector to get the input data into the hardware. I remembered this after much frustration from the days when I used to get discarded cables from my former employer who made sync serial hardware. We shipped a nearly-fully- compatible cable with each and every one of our boards. All I need to do to convert these to PDP-8/a use is to add that jumper wire. If anyone is in need of a Berg-to-DB25 cable, let me know. I have a box of them that can be converted to PDP-8 use (for a nominal fee, of course ;-) -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Motorola 68k family ( was Re: Comparison of system specs. )

by ethan_dicks＠yahoo.com

--- "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > Unfortunatly I don't remember where I read that for sure, and I'm not 100% > sure it's the Dragonball, but the Dragonball sounds like the right follow > on processor. I recall the same thing. > I think I read it in the TEAM Amiga Mailing list, in one of > Dave Haynie's posts, but like I said, I don't remember. I did see Dave Haynie mention that there were some fundamental differences in the Dragonball that caused binary-level compatibility problems, but I don't recall the specifics, either. > However, I think even some of the 68040 and 68060 series chips don't have > all the instructions of earlier processors. We got any 68k pro's around > here? For all practical purposes, the differences with the 68000 and the '40 (and higher) are more related to priv'ed instructions, not missing instructions. There may be some missing ones, but they are not ones that were well used (BCD packing and unpacking instructions come to mind, but I'm not 100% sure of that). Cache and timing issues for instruction-set-dependeng loops are much more of a problem. Because the 68K family didn't change as massively as the Intel x86 family, programmers tended to use cycle-counting loops more often than they should. Who here remembers the first generation of VGA games that didn't run right on the 486 because the loops were running too fast? DOS programmers learned their lesson years ago when poorly-written software broke with every new hardware design. Such things came more slowly to the Motorola world. The first compatibility problem came with the 68010 and the MOVEcc instruction. It's unpriv'ed on the 68000, and priv'ed on the 68010 and up. AmigaDOS provides a call to extract the relevant condition bits that one is supposed to use. The practical solution was to install an exception trap to handle when some errant programmer used the forbidden instruction and emulate the real thing. It's much, much slower, but it's the kind of thing that doesn't get executed in a loop, so wall-time execution speed is essentially unaffected. For the trivial-minded, the AmigaDOS calculator that came with AmigaDOS 1.1 uses the offending instruction and makes a good test that the exception handler is installed. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Two PDP-8A questions

by ethan_dicks＠yahoo.com

--- John B <dylanb(a)sympatico.ca> wrote: > Okay thanks.. I will work on the RK05s now.. they both have a bad -15V > supply...but bioth work fine when tipped on their left hand side. I saw that posting. How odd. I have a similar problem with one of my PDP-8/Ls. A retaining nut is loose on one of the three fuse holders. IIRC, the RK05 has an external circuit breaker, but no exernally mounted individual fuses like the power supplies from the late 1960s. I'd suppose your problem is some kind of loose component or connection, but I couldn't suggest where to look. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Weirdest RK05 problem I have *ever* seen.

by dylanb＠sympatico.ca

I have not even begun to look at the drive yet but I thought I would float the problem here in case someone has actually had something happen as weird as this. PROBLEM: Both drives don't work.. only "Write Protect". Is you tip either drive on it's left side they work fine, (blower starts up, lights, everything..). [not the right side] Looks to be PSU problem but I have not popped the top yet. In all the years I have worked on RK05s I have never seen this! john PDP-8 and other rare mini computers http://www.pdp8.com

26 years, 7 months

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Okay, I'm an idiot. ^_^

by DSEAGRAV＠toad.xkl.com

Yeah, I still manage to confuse myself with MM. ^_^ Sorry. -------

26 years, 7 months

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It Lives!

by ethan_dicks＠yahoo.com

I've finally gotten one of my PDP-8/Ls back on its feet - the solution: remove *all* the cards, hose down the backplane with contact cleaner and clean each and every finger of each and every card. The hit-and-miss stuff just wasn't cutting it, nor was alcohol. I don't know what's in the contact cleaner, but I have a small case of it I aquired from a now-defunct Commodore Dealer here in town (there are *no* ingredients on the label, nor any references to MSDS sheets, so it must be old). As a bonus, I set up a tripod and an 8mm camcorder and took 1 second shots between each card insertion. I now have a 1.75 minute time-lapse movie of the cards popping in, one by one. What I _don't_ have is a way to digitize the movie. :-( When all was done, I fired up the machine and it ran the following program the first time: 0020 7604 LSW / Clear accumulator and OR in the Switch REgister 0021 5020 JMP 0020 / Do it again Core is fine, power fail/restart is fine, all the front panel switches appear to be fine. This machine hasn't worked right for *years*. A good stiff cleaning is all it took. Now, on to TTY tests and eventually, MAINDECs. One gotcha with this box - one of the fuse holders is loose at the back of the PSU. In its untightened state, it produces an open circuit if I move the box around and don't wiggle it back to its groove. I may need to remove most of the cards to remove the PSU to get to the nut. <sigh>. One down, two to go. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Hewlett Packard A2094 Monitor (Standard RGB ?)

by musicman38＠mindspring.com

Subject: Hewlett Packard A2094 Monitor (Standard RGB ?) I found a Website with the specs on the HP monitor I found. Could someone take at look at the specs and tell me if this is standard RGB , or is it possibly VGA compatible ? Monitor Specifications: (From the Website) Screen Attributes 19" Aperture grill " viewable image .30 mm dot pitch Input Signal Video Signal : Analog H Frequency : 68.7 V Frequency : 75 Hz Sync Signal : Green, Composite, Separate Input Connector 5 BNC Maximum Resolution Maximum : 1152x870, 75 Hz Macintosh : 1152x870, 75 Hz Flicker free : User Controls Analog controls BR, CT, CV, VE Plug and Play

26 years, 7 months

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OMNIBUS LA-180 interface

by ethan_dicks＠yahoo.com

I finally dug out my OMNIBUS LA-180 interface card - M8365, pcb p/n 5011818B. I don't know much about it except that I used a 40-pin cable straight to the parallel input connector on the LA-180, and that whateve IOTs it uses must be the "standard" line printer ones because it took no fiddling with. I plugged it in and OS/8 was happy with it. No muss, no fuss. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Two PDP-8A questions

by ethan_dicks＠yahoo.com

--- John B <dylanb(a)sympatico.ca> wrote: > I hope someone can answer these questions... > > Where does the 16 pin front panel connector plug into the main options board > and which way? (There are two sockets on the Options board) It doesn't. It plugs into a 16-pin header/ribbon cable that comes from the backplane. The two empty sockets are for user boot roms. > Where does the main serial line plug into (which port on which board)? The DKC8AA (I don't have the handle number here) - it has two Berg connectors facing front (for the full front panel) and three facing backwards - the one closest to the edge fingers is the serial connector. The other two, for the sake of completeness, are 12-bits in and out. The output port can be used to drive an LA-180, but the data is inverted from normal and the IOTs are not the same. With a recompiled driver, however, you could drive a parallel printer with it. Do you need a copy of the 1977-1978 microcomputer handbook? I have a spare. Let's talk. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Now I'm really subscribed!

by foxvideo＠wincom.net

Friday evening I tried to send a message to CLASSICCMP, and was informed that since I was not a subscriber, I couldn't. Now I subscribed back before the first VCF, so it must have been over two years ago. After several exchanges with "listproc(a)u.washington.edu," I was informed that I was subscribed, and am now getting TWO of each message. Not wanting to tackle that automated system again, I am sending this message in hope that a human being can straighten things out. Regards Charlie Fox Charles E. Fox Chas E. Fox Video Productions 793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada email foxvideo(a)wincom.net Homepage http://www.wincom.net/foxvideo

26 years, 7 months

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Two PDP-8A questions

by dylanb＠sympatico.ca

I hope someone can answer these questions... Where does the 16 pin front panel connector plug into the main options board and which way? (There are two sockets on the Options board) Where does the main serial line plug into (which port on which board)? john PDP-8 and other rare mini computers http://www.pdp8.com -----Original Message----- From: Jim Strickland <jim(a)calico.litterbox.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, December 11, 1999 4:32 PM Subject: Re: Apple ][ + but no Floppies >> Appletalk for the IIgs? I didn't know. Was there ever Appletalk for older >> machines (it would have to be under ProDOS, of course)? > >Yup. AppleIIGS had appletalk built in. I've used it to print. It's slow >but it works. There were also appletalk cards for the 2e's. > > > >-- >Jim Strickland >jim(a)DIESPAMMERSCUMcalico.litterbox.com >----------------------------------------------------------------------- > BeOS Powered! >----------------------------------------------------------------------- >

26 years, 7 months

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Apple ][ + but no Floppies

by ethan_dicks＠yahoo.com

--- "Charles P. Hobbs" <transit(a)primenet.com> wrote: > > You still need those Apple II DOS system disks? I can make them now. . . I'm not the original requester, but I have several Apple II systems and no *original* system floppies, just a couple of boxes of bootable stuff from the place I used to write kiddie games at (c. 1984). Given that I do kinda have a working system, is there a way to send Apple II disk images like you can with a Mac? Back in the bad old days, we used to transfer stuff to/from the Apple with a faux-serial cable out of the game port (bit banged TTL to the bit banged TTL port on a C-64, to be precise). I do have an Apple IIc+ that has both 5.25" and 3.5" diskettes, if that helps. Thanks, -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 7 months

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Scary!!! (warning eBay related)

by healyzh＠aracnet.com

I just got a copy of eBay Magazine in the mail today. What a scary thing to have a magazine on. Of course now I'm starting to wonder what kind of list I'm on, that's the second magazine I've gotten in the last couple weeks that I've no idea why I got it. What's really scary is they've got 2-3 pages that are a 'barometer' of how stuff on eBay is doing. The good news is that as far as I can tell, classic computers aren't listed. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 7 months

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Hewlett Packard A2094 Monitor (Standard RGB ?)

by rigdonj＠intellistar.net

At 11:01 PM 12/10/99 -0500, Carlos wrote: >At 12:00 AM 12/9/99 -0500, you wrote: >> Input Signal >> Video Signal : Analog >> H Frequency : 68.7 >> V Frequency : 75 Hz >> Sync Signal : Green, Composite, Separate >> >> Input Connector >> 5 BNC >> >> Maximum Resolution >> Maximum : 1152x870, 75 Hz >> Macintosh : 1152x870, 75 Hz >> Flicker free : >> >> User Controls >> Analog controls >> BR, CT, CV, VE >> >> Plug and Play > >Plug and play? what! Only on the system that it was designed for! This is typical of the hype that manufacturers are spewing! Joe

26 years, 7 months

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(no subject)

by CLASSICCMP＠trailing-edge.com

>> Still a reliable surplus vendor, incidentally: >> >> http://www.cadigital.com/ >*Snort!* One of the few places I've seen that makes the >prices on E-Bay look cheap. Their target market is definitely >*not* hobbyists. Those 8" drive prices are for new-in-the-box never used drives, incidentally. If I'm charging a customer $100 an hour to go on site and service their machine, I'm not doing them a favor by installing a heavily-used drive to save a few bucks. And if you want to compare prices, maybe you want to look in the back of a late-70's BYTE, see that a Shugart 801 sold for $350+ back then to hobbyists, adjust for inflation since then, and arrive at an adjusted price today of over $1000 for a new Shugart 801. California Digital's prices are a bargain by this method. I certainly can't justify keeping parts in my inventory for over twenty years! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

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Fwd: Computer for sale

by cfandt＠netsync.net

Anybody out in the Midland, Michigan area, here's a Heath H89 available. Would seem to be a very good complete system for a person who wants one! It's likely CP/M as it's got the soft-sector H37 floppy drive as opposed to HDOS which typically uses the H17 and 10-sector floppies. Contact Don directly of course: >Date: Sat, 11 Dec 1999 08:30:08 -0500 >Reply-To: DonaldF F Christensen <dfcsenior(a)JUNO.COM> >Sender: Heathkit Owners and Collectors List <HEATH(a)LISTSERV.TEMPE.GOV> >From: DonaldF F Christensen <dfcsenior(a)JUNO.COM> >Subject: Computer for sale > >Attention Heath Collectors: I have a vintage Heath/Zenith computer set-up >from about 1982.It consists of the following components: H-89 Computer >console(monitor-keyboard- >floppy drive). external H-37 Floppy Drive System, H-25Dot Matrix Printer >and 2 boxes of >documentation. All components are very clean and thought to be in usable >or restorable >condition. This set-up is for pick-up only. Make me an offer. I/m anxious >to get it out of my basement. Don W8WOJ Midland, Michigan > >Sponsored by the City of Tempe > >Listserver Submissions: heath(a)listserv.tempe.gov >Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath >'name' 'call'" >Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath" Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.antiquewireless.org/

26 years, 7 months

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Hewlett Packard A2094 Monitor (Standard RGB ?)

by edick＠idcomm.com

I seriously doubt that the sync signals have any effect at all on the "stereo" vision effect you may observe when playing some games, etc. In fact, at the risk of saying "bah, humbug" about what's obviously a popular feature, the monitor, as far as I can see, can do little to help what's being displayed on it. Of course, being bright, sharp, well converged and linearized, is always better than not. Using a fixed ffrequency monitor on a PC is always a pain in the *ss. No matter how diligently the vendor of these cards calining to make it work have pursued the features, there's always some sort of problem, be it the mouse, the floppy disk, something is going to screw up. I'd advise anyone contemplating this sort of monitor to get an a/b switch as sold by MEI and countless others and use the BIG monitor for WIndows or whatever they want, and use a $10 vga from the thrift store for everything else. That should do the trick with minimal pain. That way they must have a video card capable of supporting their monitor, but don't have to have a custom BIOS rom on it to support the BIG monitor. IF the card you are considering will support the non-interlaced 1280 by 1024 at the vertical rate, or close to it, for which the monitor was designed, you should consider yourself lucky. These won't be cheap, because the video DAC has to be very fast, (run the numbers!) to cough up pixels in 64k colors at 1.12x the product of the horizontal rate and the number of pixels. That $160 card which was mentioned yesterday on this thread was capable, but $160 is not an ordinary price! Dick -----Original Message----- From: Carlos Murillo <cem14(a)cornell.edu> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, December 10, 1999 9:09 PM Subject: Re: Hewlett Packard A2094 Monitor (Standard RGB ?) >At 12:00 AM 12/9/99 -0500, you wrote: >> Input Signal >> Video Signal : Analog >> H Frequency : 68.7 >> V Frequency : 75 Hz >> Sync Signal : Green, Composite, Separate >> >> Input Connector >> 5 BNC >> >> Maximum Resolution >> Maximum : 1152x870, 75 Hz >> Macintosh : 1152x870, 75 Hz >> Flicker free : >> >> User Controls >> Analog controls >> BR, CT, CV, VE >> >> Plug and Play > >Plug and play? what! > > >The a2094 is a very nice fixed frequency monitor for the hp9000-700 series >circa 1992-1994. 72 Hz vertical, 1280x1024 NI resolution. Very dark, nice >tube. Sync on green. I believe that it has extra sync stuff to do >stereo vision effects with the right graphics card. The card in my 735 >has a stereo output, but the monitor that I have (A1097C) is nowhere >as nice as the A2094. > >Looks like the person who wrote the data for that web site plugged >it into a mac, it sort of worked, and then assumed that those were the >original specs. Being sturdy, it probably will sync at 75Hz >and survive, but it was designed for 72Hz. > > >

26 years, 7 months

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Fw: Computer for sale (h89 in Michigan)

by dogas＠leading.net

Forwarded from the Heath list. Contact author directly. Regards - Mike -----Original Message----- From: DonaldF F Christensen <dfcsenior(a)JUNO.COM> To: HEATH(a)LISTSERV.TEMPE.GOV <HEATH(a)LISTSERV.TEMPE.GOV> Date: Saturday, December 11, 1999 9:00 AM Subject: Computer for sale >Attention Heath Collectors: I have a vintage Heath/Zenith computer set-up >from about 1982.It consists of the following components: H-89 Computer >console(monitor-keyboard- >floppy drive). external H-37 Floppy Drive System, H-25Dot Matrix Printer >and 2 boxes of >documentation. All components are very clean and thought to be in usable >or restorable >condition. This set-up is for pick-up only. Make me an offer. I/m anxious >to get it out of my basement. Don W8WOJ Midland, Michigan > >Sponsored by the City of Tempe > >Listserver Submissions: heath(a)listserv.tempe.gov >Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath 'name' 'call'" >Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath"

26 years, 7 months

1
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Apple ][ + but no Floppies

by rhudson＠ix.netcom.com

Can anyone help me out I have a working apple ][ plus but no floppies with DOS or Prodos on them. Also no serial port on the machine. Whats to do? Ron rhudson(a)ix.netcom.com

26 years, 7 months

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