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

by pete＠dunnington.u-net.com

On Jun 11, 14:44, Jules Richardson wrote: > > The information I have gives the makeup of each of the gap types in > terms of bit patterns, counts, what clock transitions are missing for > MFM formats etc. > > Question is, is this a standard? I mean, for any disk using MFM or FM > recording are these bit patterns going to be the same? Or is it > dependant on the controller chip being used? So long as it's FM/MFM it's pretty much the same for any controller -- otherwise disks wouldn't be so interchangable :-) If you want an external floppy, why go to a lot of effort when all you need is one of the old cards that had an external connector? It's normally a 37-pin D-connector, with a few pins used to supply the power. Of course they're ISA cards, so you'd need a machine with ISA slots, but your reference to "ISA bus hang-ups" implies you have that. You also need to be able to set the card to be the second floppy controller (but most of the ones with external connectors have that capability) or disable the on-board floppy controller (if there is one -- but most older boards can do that too). -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

6
6
0 0

AMC/AMD Z-8000 Multibus pictures

by rigdonj＠cfl.rr.com

I just posted some pictures of the AMC/AMD Z-8000 Multibus chassis and cards that I found last week at <http://www.classiccmp.org/hp/amc/>. The chassis and CPU card are marked Advanced Micro Computer. AMC was a short lived division of Advanced Micro Devices (AMD). The CPU card is marked 96/4116 Monoboard. The other two cards are wire wrapped. Most of the ICs on them are SSI ICs but the one card has a bunch of Singnetics PLS 105N Programmable Logic Sequencers. Joe

22 years, 2 months

1
0
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HP 64000 in Kansas City

by Bill.Bohan＠i-o.com

How much are they wanting for it? Bill Bohan 972-234-3950 x52 Design Engineer

22 years, 2 months

1
0
0 0

Free Dec Boards

by pspan＠amerytel.net

Hi all, Thanks for contacting me privately. There were two people that were off by the same amount so I will contact them seperately. The number was 53 for those who were interested. I had one guess of 48 and another of 58. Thank you to everyone that responded and I am sure that these boards will go to a good home. Phil

22 years, 2 months

1
0
0 0

HP64000

by Bill.Bohan＠i-o.com

The only thing I could contribute is that there is a Software package that emulates the HP64000 In compiling code, free to download. You probably already know this. Is there another HP64000 available? I could possibly get copies of manuals and SW from a place I used to work at. Bill Bohan 972-234-3950 x52 Power Supply Design Engineer

22 years, 2 months

1
0
0 0

WARNING: RANTING COMPUTER NUT...

by melamy＠earthlink.net

it is still a major waste of bandwidth... -----Original Message----- From: Paul Thompson <thompson(a)new.rr.com> Sent: Jun 15, 2004 1:06 PM To: Steve Thatcher <melamy(a)earthlink.net>, "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: WARNING: RANTING COMPUTER NUT... On Tue, 15 Jun 2004, Steve Thatcher wrote: > all." This list is for classic computers. Any chance you all can keep > your personal feelings from wasting email bandwidth. > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> This list supposedly allows for Off-Topic posts. cc-tech is the list you want.

22 years, 2 months

1
0
0 0

VT55 Programming Manual

by dbetz＠xlisper.mv.com

Does anyone want a copy of the DEC VT55 Programming Manual (AA-4949B-TC)? I have the manual but have never even seen the terminal. Anyone want it?

22 years, 2 months

3
2
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Anyone heard of Gespac?

by Mike.Neal＠egnhst.nhs.uk

I stumbled across your question whilst looking for something else. I don't know much but.......I can tell you that in a Linear Accelerator (used for treating cancer with high energy photons (X-rays) or electrons, there is sometimes a system called Portal Vision which allows digital images of the treatment site to be taken during treatment. For Varian machines, the cassette holding the image capture device is on a retractable "arm" controlled by a control system on a GESPAC G-64/96 bus. CPU is MC68HC000 and the operating system is OS-9. You may have an R arm controller or more likely some other OS-9 based system. Mike Neal **************************************************************************** The information in this email and in any attachment(s) is commercial in confidence. If you are not the named addressee(s) or if you receive this email in error then any distribution, copying or use of this communication or the information in it is strictly prohibited. Please return it to the sender and delete all copies. Thank you. Whilst e-mail and attachments are virus checked GHNHST does not accept any liability in respect of any virus which is not detected. Please note that any views or opinions presented in this email are those of the author and do not necessarily represent those of the organisation. Gloucestershire Hospitals NHS Trust http://www.gloshospitals.org.uk *************************************************************************cgh

22 years, 2 months

1
0
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Cromemco Information Needed

by Watzman＠neo.rr.com

I need as much information as possible - but at least the DIP switch settings - for a Cromemco 64KZ II memory board. Note, this is the 64KZ II, which is a different board from the Cromemco 64KZ (No "II"). If someone has a manual that they will loan me, I will scan it into a PDF file and return it. Thanks, Barry Watzman Watzman(a)neo.rr.com

22 years, 2 months

2
1
0 0

Cool 4004 based calculator

by vcf＠siconic.com

Whilst thrifting for Atari joysticks today, I came across a barely interesting looking desk calculator and a hunch compelled me to take a chance on it. It is the Unicom 141P made by Unicom Systems, Inc. The label indicates, "Made in Japan". "Hmmm...Unicom...Unicom...Japan..." It sounded familiar. Of course I was thinking "Busicom", which is the name of the Japanese company that ordered the development of what became the 4004 for a new calculator they were designing. But I couldn't quite remember the name. At $5, I figured it was worth taking a chance. It was, as I mentioned, a barely interesting desktop calculator, so worst case it would serve as a good example of a 1970s desktop calculator (I was pretty certain it was circa 1970s). So I just opened it up and <surprise> it's got an Intel 4004 inside! Unfortunately, I'm not able to test it out because it requires a funky squarish three prong power cord. I'll have to look around and see if I can find one. There's only one (out of two) relevant Google results, that being this guy's website: http://www.devidts.com/be-calc/index.html With this calculator listed on his "Alphabetic catalog of Electronic Calculators" list. http://www.devidts.com/be-calc/catalog_U.asc.htm Might anyone (Rick Bensene?) have any info about this calculator? Rick's site lists the Busicom 141 in his wanted section: http://www.oldcalculatormuseum.com/wanted.html#WANTED-BUSICOM Is this in fact a re-badged Busicom? Or just coincidence? Rick's description indicates that the Busicom 141 is based on discrete diode/transistor logic with a Nixie tube display, whereas this one has a printing mechanism only. In searching for info, I came across another interesting website here: http://www.dotpoint.com/xnumber/cmhistory.htm ...with this interesting article: http://www.dotpoint.com/xnumber/e_walther.htm Oddly enough (perhaps), this represents the only 4004-based computing device in my archive. I'm relatively stoked ;) (And I haven't been thus about a new find in a long time...) -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 2 months

16
24
0 0

Free VAX 3100/30 in Atlanta

by ken＠seefried.com

I've got a VAX 3100/30 in probably-working-but-no-warrenty free for pickup in Atlanta, GA, USA. I'll throw in an external SCSI cable (which has an odd connection) and a VT220 (without, unfortunately, a MMJ cable). Need to make some room for higher priority rubbish. Ken

22 years, 2 months

1
0
0 0

Macs: Billions and Billions sold

by sml49＠comcast.net

Chris wrote on 6/14: > >> This is a >> perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 >> on it and use it to write and to cruise the web. > > OS X will perform like poop with only 192 MB of ram. Doable, but you will > be MUCH MUCH happier going beyond 256 MB. > > The catch with the Rev A boards is, they don't "officially" support 256 > MB SO-DIMS. 128's are the largest they are supposed to handle. However, > as long as you get 8x64 chips (as opposed to the newer 8x32), they seem > to work fine. Also, watch out when you buy RAM, anything that goes in the > lower RAM slot must be Low Profile SO-DIMMs. Larger ones won't fit. And > also, some of the ram slots have metal retaining clips, those have been > known to touch the pins on the ram chips keeping them from being seen. If > you have one with metal clips, just tape off the edge of the ram chip to > keep the clips from shorting them. I'm sure you're right; I have another iMac (a 333 mhz one) with 256 running 10.3.4 and it's acceptably fast - not hot stuff but more than good enough for what I need - running iTunes at work as well as running whatever other odd apps I feel like that our corporate MIS won't allow to be installed on company hardware. I'll see how this one feels before I shell out for a RAM module. Whoever owned this machine before put the 128 mb module in the lower slot with the upper one still containing 64 mb. It's a Rev B board in this one - it's got a Rage Pro chip - not the board that belongs in this case (tangerine) but it will do. I have a complete set of Bondi plastics from another (dead) Rev B and even have the IR module. Theoretically I could recreate the machine this board belongs in, but what the heck - I like this color...and don't need the IR.

22 years, 2 months

1
0
0 0

floppy low level format question

by dwight.elvey＠amd.com

> >> PS: The old Micromation floppy controller (CP/M 1.4 days) used NEITHER >> chip family, did their own formatin LS TTL, and practically no one can >> read them. > >I have a Micromation Doubler in my CASU Super C (S100 bus CP/M machine). >>From what I rmemeber the single-density (FM) format is standard, and can >read/write IBM3740 disks. The double density format, though, is probably >unique to this card. > >> You can probably do all this in a PC sound card these days! > >Not many sound cards will handle 500kHz signals, surely? > >-tony > Hi Tony I doubt they'd take it directly. Most have anti-aliasing filters that roll of before this. I think what the other fellow was refering to was to use the DSP on a sound card but not through the audio A/D part. Many sound cards used industry standard DSP chips the were reprogrammable with flash or on board RAM. The DSP chip I'm looking at on a modem card is a AD2116. It runs at about 16 mips and has very efficient indexed addressing with increment. This is more than fast enough to bit bang a floppy signal. To sample a digital signal asynchronously really takes a sample rate of at least 4X ( Shannon's says 2X but that is in theory with analog and brick wall filters ). Most serial chips use 16X. Since you need to detect edges, you need to be running at a sample rate of near 4 to 8 megherts to stay up with a signal from a floppy at 500khz data rate. Dwight

22 years, 2 months

1
0
0 0

Free DEC 11/34 Boards

by pspan＠amerytel.net

Hi all, I have some boards out of a DEC 11/34 sytstem to give away. All you need to do is pay shipping. UPS ground charges. If no one is interested, then they will go to the scrap man on Wednesday. To be fair to everyone, I will send to the person closest to the number I have picked between 1 and 100. Here is the list of boards: 1 ea M9302 1 ea M9202 1 ea M7258 1 ea M7762 2 ea M7856 1 ea M7819 and 3 EMULEX boards 1 ea TU1110406, SU1210401 & TU1110401. These boards came out of a Telcom's billing system, but were not treated very gently when removed. Hope everyone is having a good day. Please email me back privately with your number guess by noon tuesday 6-15-04 CST. Thanks. Phil

22 years, 2 months

4
3
0 0

COSMAC BASIC hex dump

by tomj＠wps.com

I just moved my lab (ugh) and all it's contents (kilopounds), and inevitably paused to look at junk along the way, and found my RCA COSMAC DEVELOPMENT KIT manual. It's got a hex listing (remember those) for a tiny BASIC for the 1802. If it's not already commonly available I'll (postal) mail a copy so's you can have all the true vintage experience of typing in hex dumps then finding the errors. I quite distinctly recall the abominable process of typing in ANIMALS or somesuch nonsense from the SWTP docs way back when. Ugh. Wouldn't wish it on anyone, and no, it did not build character.

22 years, 2 months

2
5
0 0

Free: DECstation 5000/240

by bob＠applegate.org

This system is free for pickup in southern NJ (Medford/Mt Laurel area). I'll be in Boston next week, so if someone up there wants it, let me know and I can drag it along in the van. This is the collection... DECstation 5000/240 processor. Includes three 32 MB memory modules (room for 12 more). SZ-12 expansion box with one RZ55 SCSI drive (300 MB?) and one RZ56 (600 MB?). SZ-12 expansion box with two RZ56 (600 MB?) drives. SCSI cables to go from processor to drive enclosure, and from one drive encloser to another. You'll need to supply your own terminator. PMAD-A board. I can't remember what this does. Four MS02 8 MB memory boards for 5000/2xx series workstations. Possibly other miscellaneous DEC cables related to this system. If you have any questions, just ask. Bob

22 years, 2 months

5
7
0 0

Apple LaserWriter questions

by sml49＠comcast.net

On June 9 Michael Sokolov wrote: > 1. Are all LaserWriters 100% pure PostScript printers, speaking nothing > but PS? I know the very original one was, but I'm not sure about whatever > happened later and whatever they make now. > > 2. Were there any LaserWriters made with duplex printing capability? If > so, what's the earliest duplex LaserWriter? > > 3. The original LaserWriter had a serial port. But given the assault on > serial ports coming from all directions, I don't expect the current ones > to have one, or do they? When was the last LaserWriter made with a serial > port? Was there ever a LaserWriter new enough to support duplex printing > but old enough to have a serial port? > > 4. Are LaserWriter serial ports standard EIA-232 DB25 or something Apple > proprietary? If the latter, what kind of adapter would I need to make? > 1. - The LaserWriter NTX supports Diablo 630 and also a limited version of a LaserJet emulator allowing use of Courier, Times, Helvetica in roman, bold, italic and bold italic; communication needs to be via the printer's RS 232 interface (DB-25) at 9600 baud to use the emulator. My 1988 Apple LaserWriter Reference text suggests checking the 1986 LaserJet reference for more info on this, though there's a fair bit on the subject in Apple's own book. 4. - The original LaserWriter had a 9-pin RS422. Later ones came with a mini-DIN 8 RS422 plus a DB25 RS 232c. These machines speak AppleTalk over their mini-DIN 8 ports when that function is selected by DIP switch positioning - in which case the DB25 serial port is disabled. In a later post someone suggested avoiding the CX-engined original LW in favor of the LWII with the SX engine, mostly b/o problems with obtaining toner - probably a wise suggestion. Plus the SX is indestructible - mine's been in service since 1989. Total cost of repairs over 15 years of light to moderate use: $26 for a new ozone filter. I'll be glad to scan any material from the LW reference anyone may want/need. Seth Lewin

22 years, 2 months

6
5
0 0

Vax help - lost passwords

by kenziem＠sympatico.ca

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Over the weekend with a lot of help my VAXstation II/GPX was brought to life. We had to swap memory and processor cards with a spare I had in the garage. It now comes up with the Ultrix login screen This morning I fired up my the VAX in the BA23 case and it too came to life running VMS 5.4. with a nice login prompt. The question is how do I get past the login prompts to reset the passwords. - -- Collector of vintage computers http://www.ncf.ca/~ba600 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQFAzfGELPrIaE/xBZARApVZAKC2sreBbEY/MMuIJuZXtpMQSFbAxwCgwad8 uP1qku5OeToTDpM8nU7ALi8= =z4Ts -----END PGP SIGNATURE-----

22 years, 2 months

2
1
0 0

floppy low level format question

by julesrichardsonuk＠yahoo.co.uk

Hmm, my pondering about reading raw data from floppies got me thinking. I have some data on low level floppy format, which gives the following information: Each track has an index gap, followed by a gap 1, followed by a number of sectors, followed by a termination gap. Each sector is made up of an ID field, seperator gap, data field, and then a trailing gap on all except the last sector on a track. This is given as the same for both MFM and FM recording. The information I have gives the makeup of each of the gap types in terms of bit patterns, counts, what clock transitions are missing for MFM formats etc. Question is, is this a standard? I mean, for any disk using MFM or FM recording are these bit patterns going to be the same? Or is it dependant on the controller chip being used? cheers Jules

22 years, 2 months

4
3
0 0

What's the weirdest thing that you've ever found inside a computer?

by rigdonj＠cfl.rr.com

I went scrounging a few days ago and opened up a junction box and found a set of wire leads with the mini-grabbers and a plastic wire frame from a HP logic analyzer that someone had left inside. Wahoo! These always come in handy! I've previously found screwdrivers, knives, various plugs, connectors and gender menders. But I got to wondering what is the strangest thing that anyone has ever found inside a computer or similar piece of electronics gear. Joe

22 years, 2 months

37
66
0 0

Macs: Billions and Billions sold.

by cb＠mythtech.net

>This is a >perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 >on it and use it to write and to cruise the web. OS X will perform like poop with only 192 MB of ram. Doable, but you will be MUCH MUCH happier going beyond 256 MB. The catch with the Rev A boards is, they don't "officially" support 256 MB SO-DIMS. 128's are the largest they are supposed to handle. However, as long as you get 8x64 chips (as opposed to the newer 8x32), they seem to work fine. Also, watch out when you buy RAM, anything that goes in the lower RAM slot must be Low Profile SO-DIMMs. Larger ones won't fit. And also, some of the ram slots have metal retaining clips, those have been known to touch the pins on the ram chips keeping them from being seen. If you have one with metal clips, just tape off the edge of the ram chip to keep the clips from shorting them. -chris <http://www.mythtech.net>

22 years, 2 months

1
0
0 0

for sale etiquette?

by d_cymbal＠hotmail.com

What is the view of folks posting items for sale on the list? I've posted forsale items to the list before, but recently I've been putting more free items and some auctions up on VCM so I am hesitant to re-post them here and turn this into a SPAM fest. Then again, I'd like to get as wide an audience as possible. Do most readers of the list also frequent VCM (my guess is a definite maybe)? What if VCM posted a summary of all new items received for sale/auction at the end of each day? That would only add 1 msg to the list that people could quickly kill if they weren't interested but would insure available stuff was getting as wide an audience as possible for those people that don't frequent VCM regularly. Just a thought. _________________________________________________________________ Learn to simplify your finances and your life in Streamline Your Life from MSN Money. http://special.msn.com/money/0405streamline.armx

22 years, 2 months

32
82
0 0

Expando-RAM Information Needed

by Watzman＠neo.rr.com

I need a manual for an "Expando-RAM" 64k S-100 memory card (sold by S.D. Sales). There were several variants of this card, the one that I have is Revision E, it has two DIP switches at the top, the one at "U1" is 4 position, the one at U2 is 8 position (many of these have a smaller DIP switch at U2). Also, there are various jumpers all over the board, a dozen or more. Thanks for any help that you can provide, Barry Watzman Watzman(a)neo.rr.com

22 years, 2 months

1
0
0 0

OSI

by earlj＠qix.net

Hello Dave, Did you ever find a home for your OSI machine? I have a lot of OSI literature to give away. Earl Morris

22 years, 2 months

2
1
0 0

Datapoint 2200 going cheap on Ebay

by wmaddox＠pacbell.net

This machine figures prominently in the history of the 8008 microprocessor, though it in fact uses a TTL implementation of that architecture. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5100920655 --Bill

22 years, 2 months

1
0
0 0

Qbus hard disk controller

by pete＠dunnington.u-net.com

On Jun 13, 23:04, der Mouse wrote: >On Jun 13, 21:27, Jerome H. Fine wrote: > > Here is the MSCP boot code from the System Release Notes of V05.00 > > page 4-9 in Chapter 4: [...] > > > If really interested, we can provide the equivalent instructions in > > MACRO-11. > > 076000: clr r0 [005000] [ ... ] > 076152: mov @100000(r2),r4 [017204 100000] Thanks for that, both. I actually have the reconstruction of the MACRO code: ;This is the MSCP bootstrap as listed in the RT-11 5.6 INS manual ... ; along with its disassembly (by hand!). Additional comments and ; attempts to make "nicer" assembly by ; Bob Schor bschor(a)vms.cis.pitt.edu (412) 647-2116 (w) ; ;Missing word (at 76102) and most of the explanation supplied by ; Jim Crapuchettes jimc(a)netcom.com 408-732-0569 ; .asect . = 42 .word 1000 ;-; Set stack pointer for RT-11 - don't "toggle" in . = 76000 ; The contents of R0 must be the MSCP unit number. Although it is set to 0 ; below, it could be manually set to some other value and then execution ; started at 76002. start: clr r0 ;76000/5000 ;; Preset register to 0 (unit) mov #172150, r1 ;76002/12701 ;; Point to IP register ;76004/172150 1$: mov #itabl, r4 ;76006/12704 ;; Point to init/cmd params ;76010/76156 mov #4000, r5 ;76012/12705 ;; Set init step to 1 ;76014/4000 ; Do 4-step controller initialization. Begin by writing any value to IP to ; reset the controller; all the rest of initialization is done through SA. mov r1, r2 ;76016/10102 ;; Copy IP address, write to mov r0, (r2)+ ;76020/10022 ;; IP to init & bump to SA 2$: tst (r2) ;76022/5712 ;; Test for error bit in SA bmi 1$ ;76024/100770 ;; Error = start init again bit (r2), r5 ;76026/31205 ;; Test step bit in SA br 3$ ;76030/401 ;; ????, appears to skip next bic (r1)+, (r5)+ ;76032/42125 ;; ????, seems to be skipped 3$: beq 2$ ;76034/1772 ;; Wait for next step ready mov -(r4),(r2) ;76036/14412 ;; Next init param to SA asl r5 ;76040/6305 ;; Move to next init step bpl 2$ ;76042/100367 ;; Loop thru 4 steps ; Bring unit on-line, read bootstrap (block 0) from the disk and start it up. 4$: tstb -(r4) ;76044/105744 ;; Point to next cmd byte bne 5$ ;76046/1002 ;; Loop thru commands mov pc, r4 ;76050/10704 ;; Point r4 to "clr pc" and clr pc ;76052/5007 ;; go start at location 0 5$: clr r2 ;76054/5002 ;; Init for clearing memory 6$: clr (r2)+ ;76056/5022 ;; Clear memory from loc 0 cmp r2, #17204 ;76060/20227 ;; thru loc 17202 ;76062/17204 blo 6$ ;76064/103774 ;; Loop until done incb @#17101 ;76066/105237 ;; Packet length = 400 bytes ;76070/17101 mov r0, @#17110 ;76072/10037 ;; Set unit number = 0 ;76074/17110 movb (r4), @#17114 ;76076/111437 ;; Move command to cmd pkt ;76100/17114 movb -(r4), @#17121 ;76102/114437 ;; Set parameter from table ;76104/17121 mov #17004, (r2)+ ;76106/12722 ;; Set response packet de- ;76110/17004 ;; scriptor: low 16 address mov r5, (r2)+ ;76112/10522 ;; bits & PortOwn bit mov #17104, (r2)+ ;76114/12722 ;; Set command packet de- ;76116/17104 ;; scriptor: low 16 address mov r5, (r2) ;76120/10512 ;; bits & PortOwn bit cmp -(r2),-(r2) ;76122/24242 ;; Point back to resp desc tst (r1) ;76124/5711 ;; Poll controller to start 7$: tst (r2) ;76126/5712 ;; Wait for resp desc PO bit bmi 7$ ;76130/100776 ;; => 0 == response received tst @#17016 ;76132/5737 ;; Status byte = success (0)? ;76134/17016 beq 4$ ;76136/1742 ;; Yes, go to next command stop: halt ;76140/0 ;; No, stop here... ; NOTE: This table MUST be - immediately preceeded by a zero byte (the HALT ; instruction) because it is the "end-of-table" marker; and immediately ; precede the Initialization Step Parameter table since a single register ; points first to the IStep Params (1 word each) and then to the commands ; (1 byte for the command, 1 byte for the parameter), passing through them ; in reverse. .byte 2 ;; Set byte count to 1000 for OP.RD .byte 41 ;; OP.RD = ReaD .byte 0 ;; 0 parameter for OP.ONL .byte 11 ;; OP.ONL = ON Line ;; .word 20402 ;76142/20402 ;; .word 4400 ;76144/4400 .word 1 ;76146/1 ;; IS4: GO bit .word 0 ;76150/0 ;; IS3: Ring base high address .word 17204 ;76152/17204 ;; IS2: Ring base low address .word 100000 ;76154/100000 ;; IS1: bits- ;; [15] = 1, [14] (WR) = 0, [13:11] (cmd ring ;; size) = 0, [10:8] (resp ring size) = 0, [7] ;; (IE) = 0, [6:0] (int vect/4) = 0 :: command ;; and response rings = 1 element, no inter- ;; rupts and no interrupt vector. itabl =: . ;need pointer to end of table ;76000g to start ODT .end stop ;For RT-11 only, don't "toggle" in IIRC, the wierdness at 076026 is because the original RT11 code was broken. Around 5.3 it got patched to work with the RQDX3 (which sometimes sets more than one bit in the SA). -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

1
0
0 0

[SPAM] - Re: Qbus hard disk controller - Found word(s) error XXX in the Text body.

by pete＠dunnington.u-net.com

On Jun 10, 20:38, SHAUN RIPLEY wrote: > > --- "Jerome H. Fine" <jhfinexgs2(a)compsys.to> wrote: > > ... > > > > Note that none of the RQDXn have any BOOT ROMS, > > which > > is standard for a DEC controller as opposed to 3rd > > party controllers > > which usually have BOOT ROMS. And even the RQDX3 > > I have a question about BOOT ROMS. Does a MSCP > compatible disk controller need a boot rom to boot > from a HD connected to it? I am ingorant about this > issue. Yes, it does. For Q-Bus machines, the processor card (if it's a quad-height, ie KDF11B or KDJ11B) should have boot ROMs that can handle MSCP, though the older ones might not behave well with bigger/later drives. The MXV11B-2 boot ROMs can do it, and they also fit the MRV11D. DEC boot ROMs may not always work with third-party MSCP controllers, but such 3P controllers often have their own boot ROMs. You could enter an MSCP boot via ODT, but it's VERY long! -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

3
2
0 0

OSI

by SUPRDAVE＠aol.com

In a message dated 6/11/2004 11:33:53 AM Eastern Daylight Time, earlj(a)qix.net writes: Did you ever find a home for your OSI machine? I have a lot of OSI literature to give away. I loaned one out to a mutual collector. what kind of documents do you have? Any OSI stuff sounds interesting. -- I am not willing to give up my liberties for the appearance of 'security'

22 years, 2 months

1
0
0 0

Macs: Billions and Billions sold.

by sml49＠comcast.net

On 6/10 Chris wrote: > >> None of the goodwill/salvation army stores near my home in NE Massachusetts >> will even accept computers of any kind for donations. That really annoys >> me, both from a donatig and a collecting perspective. > > The one near me had the same policy. They would refuse them, and if they > were left when the place was closed, they would chuck the CPU in the > dumpster and sell whatever parts and software was left. I happened to be cruising past the recycling area at my town disposal area Saturday and scored a tangerine-colored iMac someone had put out, keyboard, mouse and all. Apparently it had been slightly bastardized at some point - it has a 233 mhz G3 Rev A motherboard swapped in instead of the 266 rev B it should have, also no hard drive but otherwise fine; booted from an OS 9 CD without a hitch. I wondered when I'd start to see machines of this vintage (early 1999) being chucked - now I have my answer. I'll leave it at a place where I do a little consulting once I install a drive and it'll save me dragging my heavy old 1997-vintage PowerBook back and forth. This is a perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 on it and use it to write and to cruise the web. Hardly a scratch on the case, too. A bargain even after buying it an 80 gig drive and a 3-button mouse.

22 years, 2 months

1
0
0 0

Wanted: M9312 ROMs

by squidster＠techie.com

Hello list, Have been fooling around with my 11/04 and all is great, but problem is I have no 70s peripherals. I only have 80s stuff; i.e. MSCP/RA/DU disks and tapes. So I'll need boot ROMs which supports RA and DU disks. Because my 11/04 used to be an embedded CNC drill controller, in the place of the regular CPU diagnostic is has a weird proprietary program which tries to initialize some long-gone/dead equipment which used to be connected to the PDP. In summary, I'm willing to pay a fair/reasonable price for the following M9312 ROMs (unless some one has spares, then I wouldn't mind them free of course :-)): 1. Console Emulator and Diagnostic ROM (P/N 23-248F1) For use on 11/04, 11/05, 11/34, 11/35, 11/40, 11/45, 11/50, 11/55 systems 2. UDA50 DU Boot ROM (P/N 23-767A9) For booting from RAnn/RDnn MSCP disks 3. TK50/TU81 MU Boot ROM (P/N 23-E39A9) For booting from TK/TU TMSCP tapes 4. RX02 DY Boot ROM (P/N 23-811A9) For booting from a RX02 8" floppy (don't have one now, but trying..) 5. RL01/02 RL Boot ROM (P/N 23-751A9) For booting from RL01/RL02 disk cartridge systems (also don't have one now, but trying...) Thanks. /wai-sun -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

22 years, 2 months

11
19
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VTServer for Windows

by wacarder＠usit.net

Does anyone on the list have a working copy of VTServer that works properly on the Windows 2000 platform? Today I was going to attempt to move an RL02 disk image from my PC to a real RL02 on a PDP-11/34, but the VTServer version that I have continuously echoes the last character that was sent from the PDP-11 to the console (in RT11, it repeatedly displays the '.', over and over. Thanks, Ashley

22 years, 2 months

1
0
0 0

Parallel drive (was: USB 5.25" floppy drive - do it

by dwight.elvey＠amd.com

Hi I doubt one can fetch data with most PC's from the parallel port fast enough to keep from being overrun, even on a byte wise basis. That is why I've suggest the DSP. May of these can run fast enough to do it on a BIT wise basis and require no external hardware, other than buffers. Dwight >From: "Steven Canning" <cannings(a)earthlink.net> > >I've been looking into this for some time. The parallel port lacks the >"through-put" to take the data on and off the floppy as serial data (as it >comes off the drive "raw") but if you added some hardware (like a Western >Digital FD controller) it will separate the data and convert it to >"parallel" data which the parallel port can support. The inverse is also >true (parallel data back to serial to fed the drive). The FDC can handle the >Single density issue. Processing power of the computer is not an issue >unless you have a painfully slow machine. I wish I had more time to work on >this project. Anyone have the Kilobaud article were someone connected a FDD >to a Heathkit ET-3400 ? > >Best regards, Steven > >----- Original Message ----- >From: "Fred Cisin" <cisin(a)xenosoft.com> >To: "General Discussion: On-Topic and Off-Topic Posts" ><cctalk(a)classiccmp.org> >Sent: Thursday, June 10, 2004 2:55 PM >Subject: Parallel drive (was: USB 5.25" floppy drive - do it > > >> On Thu, 10 Jun 2004, Jules Richardson wrote: >> > Not sure if such as a PC parallel port is fast enough to cope with the >> > data rate of a floppy drive and leave enough time for the CPU to do the >> > processing though... but that'd be nice; little more than a cable and a >> > bit of glue logic hooked up to a parallel port that could be quickly >> > swapped between machines. >> >> MicroSolutions (DeKalb IL) in their "BackPack" line, made parallel port >> floppy drives. I have a 2.8M 3.5" from them, but they also made a lot of >> other models. >> > > >

22 years, 2 months

2
2
0 0

Apple II floppys

by ron.hudson＠sbcglobal.net

Are there still places to get 5.25" diskettes for Apple II? How about the 3.5" diskettes? (apple IIc+)

22 years, 2 months

9
9
0 0

MIT Dumbkopf 1 computer

by frustum＠pacbell.net

Some time back on the vintage computer marketplace (http://marketplace.vintage.org/), somebody listed a "dumpkopf 1" computer, but only the most vague information was given about it. I think there was some speculation here that it was maybe a hoax, and that no information could be found about it on the internet. I accidentally stumbled upon the machine at this web site; I suspect that this guy was the lister in that marketplace ad: http://community-2.webtv.net/ARCHAICAUDIO/WESTERNELECTRIC/page15.html It looks to be very interesting, perhaps significant, but certainly inoperable. The web page has a number of very interesting pictures of the computer, and says that the tubes have a 1954 date stamp on them. There are some large patch panels on the machine, so perhaps it wasn't a general purpose programmable computer (in fact, the name implies the machine isn't all that smart!)

22 years, 2 months

8
9
0 0

Benson 1645 plotter experience?

by julesrichardsonuk＠yahoo.co.uk

Anyone ever used a Benson 1645-R plotter? We dragged one out of store at the museum the other day. It does its test plot fine, and we look to have got a terminal talking to it as far as handshaking and sending characters via the SA interface. It's not responding to HPGL commands at all though - in fact it's not responding to anything sent down the serial line, other than the handshaking being ok. We're using the 'SA' interface which has one RS232 port and one unknown 9 pin port. We also have an 'SW' interface module, which has two ports on it - one male and one female. According to the (nearly useless) documentation we have, one is for a terminal and one for a host computer - but it doesn't explain the point of that (i.e. whether we should be trying to drive the thing from the terminal port or the host port). Nor does it explain what the difference between 'modem' and 'hardware' connections are (surely the plotter knows nothing of what's actually connected to its interfaces and doesn't care), what the difference is between local and remote mode (this is different between manual and auto mode), what the difference is between normal and emulate mode (emulate what? Selection of Benson or one of various HP plotter types is a seperate menu option, so I don't think it's to do with Benson/HPGL protocol emulation) Nor do the docs say what the difference is between the flow control options on the SW interface (partly why we gave up and started using the SA one) - there's a choice of CTS1, CTS2, then XON 1-4. How those map to the real world we don't know. Grumble grumble. Anyone know how to kick the thing into HPGL emulation mode so we can actually talk to it? cheers Jules

22 years, 2 months

2
1
0 0

Differing Atari VCS case designs

by witchy＠binarydinosaurs.co.uk

Folks, Got a call from a friend today asking me if I'd like her VCS plus games so I'm now in possession of yet another machine but with 10 or so excellent condition boxed games, some of which I've not heard of before. However it's the machine itself that's interesting as it has a low serial (~70,000) and the case itself looks like what I call the 'US' case - extra thick edges and sculpting on the back where the joysticks etc plug in, not the plain flat back of the models I'm familiar with. I'm guessing it's one of the first UK (ie PAL signal) models since there's no CH2-3 selector switch visible and it has a TV/Game switchbox, but can anyone shed light on why the case was that thick in the first place? Shielding for US emissions regulations perhaps? Cheers! -- Adrian/Witchy Owner & Webmaster, Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 2 months

1
0
0 0

Request for information on HP 9826

by rigdonj＠cfl.rr.com

I got the message below from someone seeking more information about the HP 9826. I'm sure some of you know more about this than I do. He's particularly looking for information about the developement of the 9826. Joe Hi Joe, My name is Tom and my brother, Mark Allen, was one of the developers of the HP 9826. He helped implement RMB for HP and said he invented the knob that was used on that series. My brother passed away a few years ago and I inherited his production prototype of the 9826 which Mark won in a team raffle. I am preparing to donate the 9826 to (a computer museum) and I am looking for more information about it to include with the donation. I found your site in Google (http://www.classiccmp.org/hp/hp9-200.htm) and am surprised to find such detailed information about these old machines. I found your email address at http://www.geocities.com/SiliconValley/Horizon/9107/collectors.htm. Do you have any pointers to more information about the product and the team that developed it? From your descriptions it sounds like you may have worked at HP and may even have known my brother, Mark. Thank you for any information. Warm Regards, Tom

22 years, 2 months

1
0
0 0

VAX Vector 6000-520

by ggs＠shiresoft.com

Hi, This was on the last list of items I wanted to get rid of but no one seemed to want it. Here's your last chance otherwise it gets scrapped (I don't really want to but I need it out of my place). Please don't ask for parts off of it. That doesn't get rid of it and only makes it more difficult to get rid of. If you want parts, take the whole thing, then I don't care what you do with it. Thanks. -- TTFN - Guy

22 years, 2 months

3
5
0 0

How do you exit an Basic environment.

by awt＠io.com

> How do you exit an BASIC environment? Type BYE

22 years, 2 months

2
1
0 0

Osborne Vixen

by David.Schlinkert＠veritas.com

Mike, I don't have my Osborne 1 any more, but have a Vixen "new" in the original shipping carton. The carton has been opened to check for mice. Are you still in the market? David

22 years, 2 months

3
2
0 0

Interesting hamfest finds

by rigdonj＠cfl.rr.com

I went to a small hamfest today and found an interesting item. It's an early Simpson 260 meter with no series number and a BROWN bakelite case. I've used these meters for 40+ years and never even heard of one of these before! Other goodies include a Tektronix 465 scope and a Wavetek Function/Noise generator (cheap!). Also the seller FINALLY brought me the National Semiconductor Pacer computer that I bought several months ago. It's a large box with 2 four digit displays and a calculator-like keyboard and appears to be in perfect condition. Pictures to follow in a few days. Also I went scrounging yesterday and found a big heap of cards for the HP-1000 including three DAS cards (very big $$$ :-) Also found a Multibus chassis with power supply made by AMD. It a Z8002 CPU on one card and two other wire wrap cards in it. I haven't had a chance to look at it closer. Joe

22 years, 2 months

1
0
0 0

Computer museums

by KParker＠workcover.com

Well I probably run a high risk of getting flamed a bit here but the wife and I are planning a trip - figured we've worked long enough and deserve it. Planned route is ex Adelaide (South Australia) to Sydney, then Los Angeles (to catch up with the daughter), then New York, onto London, then maybe Spain, then Zurich, over to Berlin, then Tokyo, down to Singapore and then home. As we are in the planning phase Id' interested if anyone knows if there are any computer museums (or similar things of interest) in these locations. TIA!!! +++++++++++++++++++ Kevin Parker Web Services Manager WorkCover Corporation p: 08 8233 2548 e: webmaster(a)workcover.com w: www.workcover.com +++++++++++++++++++ ************************************************************************ This e-mail is intended for the use of the addressee only. It may contain information that is protected by legislated confidentiality and/or is legally privileged. If you are not the intended recipient you are prohibited from disseminating, distributing or copying this e-mail. Any opinion expressed in this e-mail may not necessarily be that of the WorkCover Corporation of South Australia. Although precautions have been taken, the sender cannot warrant that this e-mail or any files transmitted with it are free of viruses or any other defect. If you have received this e-mail in error, please notify the sender immediately by return e-mail and destroy the original e-mail and any copies. ************************************************************************

22 years, 2 months

13
12
0 0

Interesting part

by Lee.Davison＠merlincommunications.com

> So what I should have asked (what I meant to ask) is does anyone > have any data on this part to determine how long the delay is? Speed of sound in mercury is 1450m/s, how long is the path of the delay line? Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

1
0
0 0

TSZ07, "5F MOTOR FAULT"

by drb＠msu.edu

Dear all, I just obtained a TSZ07, and of course promptly tried to load a tape. The drive blows for a while, rotating the front hub, routinely seems to get the tape about halfway through the serpentine path, then emits an error message "5F MOTOR FAULT". The rear hub seems to be moving at least some, the front hub works the way I remember these units working. (Ok, _my_ memories are of 1600bpi Cipher-badged units from my Prime days.) Any suggestions, or am I screwed? Thanks, Dennis Boone

22 years, 2 months

1
0
0 0

Tektronix 2225 scope

by witchy＠binarydinosaurs.co.uk

Folks, I'm on holiday this week and I've borrowed the spare Tek 2225 scope to fiddle with. Can anyone give me a head-start on this beastie so I can go over my dead TRS80 M1 and see what's actually working? I'm a total scope novice so I'm searching for online tutorials on general scope use but if anyone's got experience of the 2225 that'd be great :) Cheers! -- Adrian/Witchy Owner & Webmaster, Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 2 months

2
1
0 0

Kodak Displaymaker "video graphics system"

by pat＠computer-refuge.org

Has anyone heard of this before? It's an all-in-one unit about 10"x11" footprint and 2.5" high, with a single 5.25" floppy drive out the front of it, and a chicklet keyboard on top, covering the front half of the unit. On the back is a "video/audio in", RS-232, RGB analog, RGB-TTL, Composite video, and modulated video connector, along with an IEC power connector and power switch. I got this with some other toys a couple weeks ago, and it seems to be missing the software that goes with it (it demands to boot from the floppy drive). I opened it up, and inside it looks vaugely PC-ish, with an 8088, and a 2x31 pin header that might be a connector for an ISA slot if used with the appropritate header->card edge adaptor. Anyways, if anyone knows anything about this, or can lend me a copy of the software, I'd be very appreciative. Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

22 years, 2 months

1
0
0 0

Sun Sparcserver 490

by ggs＠shiresoft.com

Hi, Someone had agreed to pick up the Sun Sparcserver 490 (Sunnyvale, CA). However, I have not heard from him in several weeks. So it's being offered again. It is a Sparcserver 490, in a very nice Sun rack. It weighs about 250-300lbs. I also have a lot of Sun documentation that goes with it. It's free for the taking. Just *take* it! Thanks. -- TTFN - Guy

22 years, 2 months

1
0
0 0

Amiga Golden Gate II

by Lee.Davison＠merlincommunications.com

Sorting through my stash in preparation for moving I've uncovered one of these cards, unfortunately it's had all its socketed chips robbed at some time (not by me) which are all GALs. Anyone got the fuse maps for these? I really don't want to have to work out the logic by hand. Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

3
3
0 0

Free in Socal: NCR systems

by elmo＠mminternet.com

I have two matching NCR 3230 boxes available for pickup. They are 486/33's with three ISA slots, floppy, and one has a 170m drive. 16 and 32 megs memory. I believe they would support a 486/66 chip. They've very small POS-oriented boxes that look very slick. They were constructed for use as routers. I also three non-vintage PCs: A Dell P120 Minitower, fully equipped, reliable, speedy, a P3 dual-processor tower (defective cpu), and a clone Celeron 300 / Slot 1 system, status unknown. These are optionally available to whomever picks up the NCR units, otherwise they're going to recycling center.

22 years, 2 months

2
1
0 0

Stupid Amiga Tricks

by Arno_1983＠gmx.de

Message: 2 Date: Thu, 10 Jun 2004 18:15:48 -0400 >>>>> "paul" == Paul Koning <pkoning(a)equallogic.com> writes: paul>>>>>> "Fred" == Fred Cisin <cisin(a)xenosoft.com> writes: paul> paul> Fred> So Commodore thought they could be successful at defying paul> Fred> convention by giving the later model a lower model number paul> paul> Fred> The Ford model A came after the model T paul> paul> And the 11/730 came after the 11/750 which came after the 11/780. paul> The 11/05 came after the 11/20, and the 11/04 came later than that... paul> paul> paul Not to forget the Sun SPARCstation 5, which came after the 10 and had the new style (gray/violet opposed to gray only) housing... -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de +++ Jetzt WLAN-Router für alle DSL-Einsteiger und Wechsler +++ GMX DSL-Powertarife zudem 3 Monate gratis* http://www.gmx.net/dsl

22 years, 2 months

5
8
0 0

Stupid Amiga Tricks

by dave04a＠dunfield.com

At 12:26 10/06/2004 -0700, you wrote: > >Why does everything have to be so difficult? > >I'm trying to set up an Amiga 500 for tonight's Computer History Museum >event. It's got a DB-23 RGB output and a Mono out. I've got an Amiga >1080 high resolution color monitor. It's got a Video and Chroma input, >plus a DA-9 RGB input. I've got an Amiga RF Modulator that plugs into >the DB-23 on the back of the Amiga and has a composite Video and Audio out >(and an RF out). Then I have several video cables. One is a DB-25 to a >DIN. Another is a DIN to three RCA leads. And then there's the DIN to >DA-9. At least one of these might be for the Atari 520ST (which I also >need to set up). > >None of this connects up in a way which gives me colour on the display. > >Is it too much to ask to have products designed by people who are not >insane? Hi Sellam, I have an Amiga 500 with a Commodore 1084 monitor. The cable I use is a DB-25 to DIN-6 (5 pins around the outside, one in the center) - this does give me color. IIRC, the RGB output on the A500 is the rightmost DB25 connector when viewed from the back, however, I'm pretty sure it's marked RGB or something like that. The Atari ST's use a honkin big circular connector - I recall it's something like 13 pins (3 rows of 4 plus 1) - Best thing for the Atari is to use an Atari SC124 (mono) or SC1224 (color) monitor. If you don't have one available, you can build an adapter for a mono display on most PC SVGA monitors (I build one before I found the monitors, and it does work). Some of my ST's have RCA connectors for RF out, which you can display on a TV (not nearly as nice). Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

22 years, 2 months

14
24
0 0

Deja-vu?

by Lee.Davison＠merlincommunications.com

Is it just me or are most of the last few messages repeats? Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

4
3
0 0

How do you exit an BASIC environment

by vax3900＠yahoo.com

I got the "CMT MC-II 8088 cmos system" with BASIC module, <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3818900921> All the language that left in my brain is A=1 B=1 C=A+B PRINT C Now the problem is how to exit the basic environment. EXIT or QUIT does not work. __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/

22 years, 2 months

9
13
0 0

Parallel drive (was: USB 5.25" floppy drive - do it

by dwight.elvey＠amd.com

Hi Steve Sure, but I have a DSP and I know how to program it. I've not done CPLD's or FPGA's. It is just a matter of what resources I have handy. I still think the DSP is a little more flexible and friendlier environment. Dwight >From: "Steve Thatcher" <melamy(a)earthlink.net> > >actually don't need a DSP (digital signal processor). A CPLD or FPGA could do most (in some cases, all) of the entire logic required except for the buffering of track data. > >best regards, Steve Thatcher > > >-----Original Message----- >From: "Dwight K. Elvey" <dwight.elvey(a)amd.com> >Sent: Jun 11, 2004 8:35 PM >To: cctalk(a)classiccmp.org >Subject: Re: Parallel drive (was: USB 5.25" floppy drive - do it > >Hi > I doubt one can fetch data with most PC's from the parallel >port fast enough to keep from being overrun, even on a byte >wise basis. That is why I've suggest the DSP. May of these can >run fast enough to do it on a BIT wise basis and >require no external hardware, other than buffers. >Dwight > >>From: "Steven Canning" <cannings(a)earthlink.net> >> >>I've been looking into this for some time. The parallel port lacks the >>"through-put" to take the data on and off the floppy as serial data (as it >>comes off the drive "raw") but if you added some hardware (like a Western >>Digital FD controller) it will separate the data and convert it to >>"parallel" data which the parallel port can support. The inverse is also >>true (parallel data back to serial to fed the drive). The FDC can handle the >>Single density issue. Processing power of the computer is not an issue >>unless you have a painfully slow machine. I wish I had more time to work on >>this project. Anyone have the Kilobaud article were someone connected a FDD >>to a Heathkit ET-3400 ? >> >>Best regards, Steven >> >>----- Original Message ----- >>From: "Fred Cisin" <cisin(a)xenosoft.com> >>To: "General Discussion: On-Topic and Off-Topic Posts" >><cctalk(a)classiccmp.org> >>Sent: Thursday, June 10, 2004 2:55 PM >>Subject: Parallel drive (was: USB 5.25" floppy drive - do it >> >> >>> On Thu, 10 Jun 2004, Jules Richardson wrote: >>> > Not sure if such as a PC parallel port is fast enough to cope with the >>> > data rate of a floppy drive and leave enough time for the CPU to do the >>> > processing though... but that'd be nice; little more than a cable and a >>> > bit of glue logic hooked up to a parallel port that could be quickly >>> > swapped between machines. >>> >>> MicroSolutions (DeKalb IL) in their "BackPack" line, made parallel port >>> floppy drives. I have a 2.8M 3.5" from them, but they also made a lot of >>> other models. >>> >> >> >> > > > >

22 years, 2 months

1
0
0 0

Parallel drive (was: USB 5.25" floppy drive - do it

by melamy＠earthlink.net

actually don't need a DSP (digital signal processor). A CPLD or FPGA could do most (in some cases, all) of the entire logic required except for the buffering of track data. best regards, Steve Thatcher -----Original Message----- From: "Dwight K. Elvey" <dwight.elvey(a)amd.com> Sent: Jun 11, 2004 8:35 PM To: cctalk(a)classiccmp.org Subject: Re: Parallel drive (was: USB 5.25" floppy drive - do it Hi I doubt one can fetch data with most PC's from the parallel port fast enough to keep from being overrun, even on a byte wise basis. That is why I've suggest the DSP. May of these can run fast enough to do it on a BIT wise basis and require no external hardware, other than buffers. Dwight >From: "Steven Canning" <cannings(a)earthlink.net> > >I've been looking into this for some time. The parallel port lacks the >"through-put" to take the data on and off the floppy as serial data (as it >comes off the drive "raw") but if you added some hardware (like a Western >Digital FD controller) it will separate the data and convert it to >"parallel" data which the parallel port can support. The inverse is also >true (parallel data back to serial to fed the drive). The FDC can handle the >Single density issue. Processing power of the computer is not an issue >unless you have a painfully slow machine. I wish I had more time to work on >this project. Anyone have the Kilobaud article were someone connected a FDD >to a Heathkit ET-3400 ? > >Best regards, Steven > >----- Original Message ----- >From: "Fred Cisin" <cisin(a)xenosoft.com> >To: "General Discussion: On-Topic and Off-Topic Posts" ><cctalk(a)classiccmp.org> >Sent: Thursday, June 10, 2004 2:55 PM >Subject: Parallel drive (was: USB 5.25" floppy drive - do it > > >> On Thu, 10 Jun 2004, Jules Richardson wrote: >> > Not sure if such as a PC parallel port is fast enough to cope with the >> > data rate of a floppy drive and leave enough time for the CPU to do the >> > processing though... but that'd be nice; little more than a cable and a >> > bit of glue logic hooked up to a parallel port that could be quickly >> > swapped between machines. >> >> MicroSolutions (DeKalb IL) in their "BackPack" line, made parallel port >> floppy drives. I have a 2.8M 3.5" from them, but they also made a lot of >> other models. >> > > >

22 years, 2 months

1
0
0 0

SCSI cable

by fire＠dls.net

VaX enthusiasts, I finally managed to get QBus SCSI card for my MicroVax II thanks to Ebay. It appears like it will fit in fine. It says KZQSA M5976-SA on the side. It has two Centronix-50 Female connectors on it. Question is what is easiest way to connect this to internal full-height DEC SCSI drive with standard 50-pin connector. Get a f-f gender connector and a cable with Centronix-50 F connector on one end and ribbon with internal connectors along it, and terminator at end? I cannot recall what model DEC drive this is, but I thought it was 4GB. How do I find DEC Drive model? I see numbers 74046725-0 A01 GM on side rail, 70-2988501 on top of drive, Model DSP5400S Rev RH12E-CY A01 on back of rail, and another label on the back of drive reading KB34426075 R-75. Board says 54-21265-06 A05 and ZG40516250 and 74P6 and Side 2 5021264-06 A01 I used to like programming in C and Fortran on this machine and the drive died a few years ago. I was hoping to load VMS on to the new big disk and have lots of space to play around in. Thanks for your assistance, Bradley Slavik

22 years, 2 months

3
2
0 0

HP logic analyser questions

by philpem＠dsl.pipex.com

Hi all, Does anyone here own or use a HP 1650B (or 1651B) logic analyser? Do they need DSDD 3.5" disks or can they accept DSHDs as well? I ask because someone has just offered me a HP 1650B - system disk, a few pods and a 1650B analyser - but doesn't have any manuals or know what type of disk it needs. I'm guessing DSDD-only, given that the system disk is supposedly DSDD. Is it possible to duplicate the operating system boot disk using standard hardware (i.e. a PC or my RISC PC)? Anyone got PDF versions of the Operator's Manual, Service Manual and/or Programming Manual? Sorry for the OT-ness of this message - sure, it's not a computer, but it meets the 10-year-rule - the power-on selftest screen displays "COPYRIGHT 1987", so that would make the firmware, what, 16 years old? Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem(a)dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.dsl.pipex.com/ | 48xCD, ARCINv6c IDE, SCSI ... How come all the buttons keep flying off my shirt?

22 years, 2 months

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Sandia and Los Alamos Auction

by tponsford＠theriver.com

Hi All Another Los Alamos, Sandia Auction this weekend. If you live within a driving radius of Albuquerque, you should really check these out. I unfortunatly cannot make it this weekend. :-( So someone else will have to bid on the Sun Enterprise 450 : http://www.bentleysauction.com/pictures/albuquerque/06-12-04%20Sandia,%20LA… There are also several Ultra 10's 5's and 2's As well as your SGI Octanes, O2's and an Impact 10000 Also a Digital RA90 Rack and a Vax 4000-400 and several MV II's Complete list: http://www.bentleysauction.com/misc/catalogs/nm061204.txt And this time they even have some pictures: http://www.bentleysauction.com/pictures/albuquerque/06-12-04%20Sandia,%20LA… Having been to these auctions before. This stuff goes real cheap!! Have fun!! Cheers Tom --- Please do not read this sig. If you have read this far, please unread back to the beginning.

22 years, 2 months

5
5
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Stupid Amiga Tricks

by vcf＠siconic.com

Why does everything have to be so difficult? I'm trying to set up an Amiga 500 for tonight's Computer History Museum event. It's got a DB-23 RGB output and a Mono out. I've got an Amiga 1080 high resolution color monitor. It's got a Video and Chroma input, plus a DA-9 RGB input. I've got an Amiga RF Modulator that plugs into the DB-23 on the back of the Amiga and has a composite Video and Audio out (and an RF out). Then I have several video cables. One is a DB-25 to a DIN. Another is a DIN to three RCA leads. And then there's the DIN to DA-9. At least one of these might be for the Atari 520ST (which I also need to set up). None of this connects up in a way which gives me colour on the display. Is it too much to ask to have products designed by people who are not insane? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 2 months

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MicroVAX 3100-30s available in Cambridge, UK

by pete＠dunnington.u-net.com

On Jun 10, 10:12, Witchy wrote: > > > Given the recent discussions, you could > > contribute a decent set of ROM images now :-) > > Heh; time to see if the ROM reader/burner we've got upstairs works! It > looks like a parallel port job for a PC so I hope we've still got the > software for it too...... :-) Be careful; ones I've seen that look like parallel port connecitons need a special card with the voltage regulators on them (I've got an ALL-02 like that). -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

2
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Atari Mandala VR System

by wayne.smith＠charter.net

Good catch - I did mean Amiga. I've seen about everything the web has too offer on this and am hoping to get my hands on some actual hardware. Thanks. -W > Date: Sun, 6 Jun 2004 12:19:52 -0500 (CDT) > From: Martin Scott Goldberg <wgungfu(a)csd.uwm.edu> > Subject: Re: Atari Mandala VR System > To: cctech(a)classiccmp.org > Message-ID: <200406061719.i56HJqdK017402(a)alpha2.csd.uwm.edu> > Content-Type: text/plain; charset=us-ascii > > >I'm looking to buy (or at least get a chance to look at) an original > >Mandala virtual reality system for the Atari - the one that > was sold by > >Vivid beginning in around late 1989 or so. Basically works like the > >Playstation Eye Toy. > > > >Anybody have one or know who does? > > > >-W > > > > Actually that was an Amiga driven system, not Atari. You can > read the specs about it here: > > http://www.siggraph.org/~fujii/etech/1991_14.html > >

22 years, 2 months

5
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HP Boards available

by CCTalk＠catcorner.org

I hope these are on topic. They all seem to be about 20 years old. I can't find any copyright. I have the following HP manufactured boards. 93799A (HS BUF INT) (I have 5 of these) 69731B (Digital Output Board) (I have 2 of these) 13037 (INTF) 12979(I/O) buffer Anybody need and/or want any of these? Make an offer (I'm a realist, I just don't want to see these go for scrap). Shipping would be from 07848 (New Jersey USA). Kelly

22 years, 2 months

1
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Teletype 33-TU in Kansas City at surplus exchange

by sales＠billottiautosales.com

I have one of these and was wondering how much you sold it for. I would appreciate this information. Thanks, Bill B

22 years, 2 months

1
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decstation cache in boston

by mbg＠TheWorld.com

>I live less than an hour from boston, I talked with Fred last night and >unless somebody beats me to it, I will pick up everything from Fred. Great... I had talked with him about it, but was not sure I would be able to do it in a timely fashion, what with moving my other condo contents... I'm glad someone could commit to it... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com | | Member of Technical Staff | megan at savaje.com | | SavaJe Technologies, Inc. | (s/ at /@/) | | 100 Apollo Drive | URL: http://world.std.com/~mbg/ | | Chelmsford, MA 01824 | "pdp-11 programmer - some assembler | | (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

22 years, 2 months

1
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Fw: Macs: Billions and Billions sold

by jkeys＠houstoncomputermuseum.org

----- Original Message ----- From: "jkeyshcm" <jkeys(a)houstoncomputermuseum.org> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org>; <sml49(a)comcast.net> Sent: Friday, June 11, 2004 11:49 AM Subject: Re: Macs: Billions and Billions sold That sounds like a great idea and I would love to do it for a display at the museum and shows that we do. Can share the software and tips? Thanks > ----- Original Message ----- > From: "Seth Lewin" <sml49(a)comcast.net> > To: <cctalk(a)classiccmp.org> > Sent: Thursday, June 10, 2004 7:09 PM > Subject: Re: Macs: Billions and Billions sold > > > > On June 9 John Allain wrote: > > > > > > > > > > But anybody have any creative ideas on what to do > > > with two or three Mac Classics that I keep finding. > > > I can't throw them out, on conscience. > > > > At one MacWorld I attended one vendor had taken dozens of Pluses, SE's, > > SE30's and Classics and built what can only be called a throne out of > them, > > with a Lisa for an ottoman - and ran the Pyro! screensaver on them all, > then > > photographed show-goers sitting on it and handed out the Polaroids. That > > took dozens of mini-Macs but perhaps you could use the few you have to do > > something equally silly - run the Energizer Bunny, network version. Hook > 'em > > together with PhoneNet, install the init on them all and the "Start > Wabbit" > > application on one, and let it rip. Bunny marches across one screen, then > > the next, then the next and around and around. I have the software if you > > want it. Sort of a deranged kinetic art form... > > > > Seth Lewin > > > > >

22 years, 2 months

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Any MacIvory boards from Symbolics? Was: Macs: Billions and Billions sold.

by cb＠mythtech.net

>Good question -- does the Mac Classic have any NuBus slots? I'd like to >snag one of the Symbolics MacIvory lisp machine cards to run on a Mac. The Classic does not have any expansion slots at all. I think the smallest Mac you can get that supports NuBus would be the IIsi (with a PDS to NuBus adaptor). But that doesn't have a built in screen. None of the All In One macs supported NuBus (at least not directly, I believe I read somewhere that the SE/30 could use the IIsi adaptor card, but even if it could, you woudn't be able to close the case with it installed). Did the MacIvory card come in another other format? LC PDS maybe? A number of AIO macs have LC PDS slots. -chris <http://www.mythtech.net>

22 years, 2 months

1
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VME 6U Powered Chassis

by RMeenaks＠OLF.COM

Hi, Does anyone have a small (3-slots to 7-slots) VME powered-chassis? I am looking for a 6U-based chassis to complement my Ultra-2 Sun workstation. Thanks... Ram (c) 2004 OpenLink Financial Copyright in this message and any attachments remains with us. It is confidential and may be legally privileged. If this message is not intended for you it must not be read, copied or used by you or disclosed to anyone else. Please advise the sender immediately if you have received this message in error. Although this message and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Open Link Financial, Inc. for any loss or damage in any way arising from its use.

22 years, 2 months

1
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floppy low level format question

by dwight.elvey＠amd.com

Hi Jules The formats for MFM and FM are mostly well defined but they are not the only formats out there. There was a problem with one of the early controller chips ( I think it was the 1791 ) that had problems with all 0 gaps or something. In general, FM is FM and MFM is MFM. The clock rates are different for 8 inch and 5-1/4, single, double and quad. There are at least two other common soft sectored formats that I know of. There is the Aplle II format and there is M2FM that Intel used. Hard sectored formats used all kinds of encoding. Most use a simple return to zero type clocking. Sector headers had any number of different combinations. Anyway, going directly into the port is always going to be tough for a PC. PC's are busy with a number of things and don't make particularly good "real time" processors. I'd been thinking of the same things you've been thinking of. There is another way. A while back there was some modem boards called "softmodems". These were made by Cardinal and DSI ( later bought by that sound board company? ). These have DSP chips that run quite fast enough to bit-bang the data from a floppy. One can load code into these boards and run fast enough to monitor the data stream of a floppy. I've hacked the ones used by Cardinal and DSI to use for some DSP projects. I've been considering doing the same to capture images of disk. I'd though it would be easiest to use the disk controller in the PC to deal with select, track stepping and head loads while using this board to read the data. Once the timing data is captured, one can store or decode at ones leisure. Dwight >From: "Jules Richardson" <julesrichardsonuk(a)yahoo.co.uk> > > >Hmm, my pondering about reading raw data from floppies got me thinking. >I have some data on low level floppy format, which gives the following >information: > >Each track has an index gap, followed by a gap 1, followed by a number >of sectors, followed by a termination gap. > >Each sector is made up of an ID field, seperator gap, data field, and >then a trailing gap on all except the last sector on a track. > >This is given as the same for both MFM and FM recording. > >The information I have gives the makeup of each of the gap types in >terms of bit patterns, counts, what clock transitions are missing for >MFM formats etc. > >Question is, is this a standard? I mean, for any disk using MFM or FM >recording are these bit patterns going to be the same? Or is it >dependant on the controller chip being used? > >cheers > >Jules > > > >

22 years, 2 months

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Macs: Billions and Billions sold

by cb＠mythtech.net

>perhaps you could use the few you have to do >something equally silly - run the Energizer Bunny, network version. Hook 'em >together with PhoneNet, install the init on them all and the "Start Wabbit" >application on one, and let it rip. Bunny marches across one screen, then >the next, then the next and around and around. I have the software if you >want it. Sort of a deranged kinetic art form... Hehe, that's the greatest thing! I should write something similar for myself. I currently have 3 Mac screens (two different Macs), and a Windows screen all facing me... I should write a little cross platform app to do something similar so I can have it run across each of my 4 screens. hehe... now I know what to do on my next down day :-) -chris <http://www.mythtech.net>

22 years, 2 months

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Vacuum tube logic thing

by et＠arpanet.com

Hi. I realize it's been a while, but I just came across your post, and was wondering if you still have the logic trainer? Thanks.

22 years, 2 months

2
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Apple II floppys

by dave04a＠dunfield.com

At 23:56 10/06/2004 -0500, you wrote: >Finding disks of any density is almost impossible nowdays. I picked up >about 100 of them from a local computer dealer as old stock -- he just >wanted to get rid of them, so I got them for free. > >Same seems to be true on DSDD 3.5" disks -- I haven't seen them available >for several years, just the HD ones now. > >Gary Hildebrand >ST. Joseph, MO I've got 10,000+ 3.5" DSDD disks in boxes of 500 - Many as you want are yours for the cost of shipping (from Ottawa). Only catch is they have no write protect tabs (from the days when I used to ship on diskette)... I made up a little cheater to slip in under the disk corner - not the best for daily R/W use, but works very well for making permanent/backup copies of things. Also have a Victory autoloading drive if anyone is interested. (load/accept/reject under serial port control - processess 100 disks at a time). Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

22 years, 2 months

1
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Prerelease Mac Portable?

by cb＠mythtech.net

I noticed this on ebay tonight: <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4610&item=510057941 2> Seller thinks it may be a prerelease model because the FCC sticker says it isn't approved and can't be sold. Possibly they are correct, maybe it was a review model sent out before they hit the stores. I'd love to have it, opening bid of $9.99, but I'm sure it will go above my price range before it closes (and now that I've pointed it out here, that's almost a sure event). -chris <http://www.mythtech.net>

22 years, 2 months

9
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RX50

by hinkamp＠wpb.nuwc.navy.mil

Hi Thom, Do you have any RX50 floppy disks? John /------------------------------------------------------\ | Atlantic Undersea Test and Evaluation Center (AUTEC) | +------------------------------------------------------+ | John James Hinkamp Hinkamp(a)wpb.nuwc.navy.mil <mailto:Hinkamp@wpb.nuwc.navy.mil> | | AUTEC Software Engineer 561-655-5155 x4325 (work) | | Andros Island, Bahamas 561-655-5155 x5690 (home) | +------------------------------------------------------+

22 years, 2 months

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[SPAM] - Re: Qbus hard disk controller - Found word(s) error XXX in the Text body.

by pete＠dunnington.u-net.com

On Jun 10, 22:19, Jerome H. Fine wrote: > >Pete Turnbull wrote: > > > > On Jun 8, 19:18, Jerome H. Fine wrote: > > > Controller Model Max RD5n Drive > > > RQDX3 (M8639-YB) RD53 > > M8639-YB is not RQDX3, it's RQDX2. > > YOU ARE CORRECT!! I did not check the details enough!! > I almost always seem to have at least ONE typo in anything > over 50 words. :-) I have that trouble too. > And even the RQDX3 is difficult > to use with any MFM drive except DEC RD5n and DEC RD3n > drives. As for the RQDX1 and RQDX2, I don't ever seem to > remember seeing one without a real DEC drive, although I have > heard that XXDP has been patched to use a non-standard (i.e. > non-DEC MFM drive). With regard to being able to FORMAT > a drive with an RQDXn controller, normally special XXDP programs > from DEC are REQUIRED! The RQDX1 and RQDX2 do tricks at startup to try to figure out what kind of drive they have connected (things like selecting unusual head numbers, seeking to high-numbered tracks) and if the results aren't what they expect, they won't recognise the drive. You can use many non-DEC 10MB drives with an RQDX1, given a suitable (early) version of the ROMs, but other sizes are tricky (and a drive that works with one version won't necessarily work with another). All the relevant drive parameters are fixed in the RQDX1/2 firmware. Things are much easier with the RQDX3, as it stores the drive parameters on the drive, so if you can once format it, it works. The table of values for approved drives is in the formatter program. In the later versions of the RQDX3 firmware, there is the capability to accept a new table entry from the formatter, and later versions of the XXDP formatter (ZRQCG0 and later) allow you to feed it values. If you do that, you also have to tell the formatter NOT to read the defect list (because there isn't one on a non-DEC drive, and when it tries to read it near the end of the 15-30 minute format operation, it will fall over). Working out the right values, however, is non-trivial. I've done it twice. The first time, in about 1990, it took days to work out what some of the entries meant. Now I just use drives it knows about already. You can also format a drive on an RQDX3 on a Vaxstation with VS2000 diagnostics. I don't know if that lets you bypass the UIT (Unit Identifier Table) as well, but I expect so. -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

1
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Stupid Amiga Tricks

by Lee.Davison＠merlincommunications.com

> Why does everything have to be so difficult? [1] To stop you from getting bored. > I've got an Amiga 1080 high resolution color monitor. ... I've got > an Amiga RF Modulator ... Then I have several video cables. > None of this connects up in a way which gives me colour on the display. Video out on the modulator to Chroma in on the monitor, mono video out on the Amiga to Video in on the monitor. > Is it too much to ask to have products designed by people who are not > insane? Yes, see [1]. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

2
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Amiga external SCSI question

by Lee.Davison＠merlincommunications.com

> Is the Amiga A2091 external interface the same pinout as the old > Apple 25-pin connector? I have the pinout for the A2091, but not for > the Apple. Yup, I used a MAC SCSI box on my A2000/A2091 for years. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

1
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Macs: Billions and Billions sold.

by cb＠mythtech.net

>> None of the goodwill/salvation army stores near my home in NE Massachusetts >> will even accept computers of any kind for donations. That really annoys >> me, both from a donatig and a collecting perspective. > >The problem is that they now have to pay to get rid of anything that >doesn't work or is simply not saleable. Blame it on the environment :) That wasn't the case for the one near me (pay to dump garbage... in NJ? BAH! We love toxic waste, we like to build sports stadiums on it). The one that had been near me told me they wouldn't take them, because they got sick of people expecting support, or wanting to return them when Windows crashed. Since they had a strick "All Sales As Is, All Sales Final" policy, they were simply tired of pointing that out to people. So they stopped selling CPUs to avoid the headaches. -chris <http://www.mythtech.net>

22 years, 2 months

1
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Amiga external SCSI question

by doc＠mdrconsult.com

Is the Amiga A2091 external interface the same pinout as the old Apple 25-pin connector? I have the pinout for the A2091, but not for the Apple. Doc

22 years, 2 months

1
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RX50

by geoffr＠zipcon.net

Do you just need floppies formatted for RX50? what machine do you need them for? if it's for a Rainbow, then CPM and MSDOS will format them for you. At 12:45 PM 6/10/2004, you wrote: >Hi Thom, > >Do you have any RX50 floppy disks? > >John > >/------------------------------------------------------\ >| Atlantic Undersea Test and Evaluation Center (AUTEC) | >+------------------------------------------------------+ >| John James Hinkamp Hinkamp(a)wpb.nuwc.navy.mil ><mailto:Hinkamp@wpb.nuwc.navy.mil> | >| AUTEC Software Engineer 561-655-5155 x4325 (work) | >| Andros Island, Bahamas 561-655-5155 x5690 (home) | >+------------------------------------------------------+

22 years, 2 months

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NY/NJ/CT - Part time tech Jobs available...

by curt＠atarimuseum.com

Hello all... I checked with Jay on this and he said it would be okay to make a posting. I run a small computer consulting firm, I am looking for tech's/engineers for on-call on-site support in the following area's: New York: Manhattan, Westchester, Putnam New Jersey: Northern and Rockland, NY area Southern Connecticut 1. I am looking for Macintosh Classic/OS X skilled (both OS and HW) 2. Cisco Networking Engineers (Routers/firewalls/switches) 3. Cable Plant/Punch-down/Patch Panel installers 4. PC Techs with Windows 95-XP skills as well as H/W Skills (Prefer those who know DOS and don't use the excuse "It's plug and play" when resolving IRQ/Port I/O issues. 5. Server Side engineers with Solaris, Windows NT/2K, Novell 3-6 This is part time, hourly on-call work as well as short term installation/upgrade projects. Those eligible: I am looking for skilled/experienced individuals, not those who've had "lab time" and taken a certification and passed, sorry but I need individuals who already have time in real world customer environments. I prefer to offer these opportunities to those currently unemployeed versus those looking for some side work, so please if you are already employeed, let me know, I would still keep you in mind but give those currently out of work these assignments ahead of you. Please email your resume to legacyengineer(a)att.net Curt -- Curt Vendel & Karl Morris ----------------------------------------------------------------------- The Atari Museum http://www.atarimuseum.com The Atari Explorer http://www.atari-explorer.com

22 years, 2 months

1
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Qbus hard disk controller

by pete＠dunnington.u-net.com

On Jun 8, 19:18, Jerome H. Fine wrote: > >Jay West wrote: Jay, could you look at the ROMs on your RXDXen and see what the 23-xxx numbers are? > > I believe I have a few spare RQDX2's, but those dont do RD53 drives just > > RD52 I think? > > Jerome Fine replies: > > Controller Model Max RD5n Drive > ------------------ ------------------ > RQDX1 (M8639) RD51 > RQDX1 (M8639-YA) RD52 > RQDX3 (M8639-YB) RD53 > RQDX3 (M7555) RD54 - RD3n drives also allowed > > NOTES: > (1) RQDX1 must be the last board in the Qbus (i.e. ONLY one allowed) > (2) All RQDXn also allow the RX50 > (3) RQDX3 also allows the RX33 and RT-11 can FORMAT an RX33 media The difference between RQDX1 (M8639) and RQDX1 (M8639-YA) is just the ROMs, which were field-upgraded, so check the ROM numbers not the handle. Only the third version is -YA, which supports RD52. The first version has problems with RX50s. V.7.0 23-238E4 and 23-239E4 V.8.0 23-264E4 and 23-265E4 V.9.0 23-042E5 and 23-043E5 M8639-YB is not RQDX3, it's RQDX2. There were three versions of the ROMs for this, and only the last two supported RD53. The difference between M8639[-YA] and M8639-YB is a diode and some hackery in the top left corner; this too could be done in the field so don't rely on the handle number. The purpose was to eliminate the "must be last card in backplane" problem. V.9.4 23-172E5 and 23-173E5 V.10D 23-178E5 and 23-179E5 V.10E 23-188E5 and 23-189E5 The RQDX3 also had several versions of its "microcode", and the first doesn't directly support RD3x (it has other problems too). The first three or four have problems with anything bigger than an RD53. ??? 23-166E5 and 23-167E5 V.1.10 23-216E5 and 23-217E5 V.2.? 23-243E5 and 23-244E5 V.3.? 23-285E5 and 23-286E5 V.4 23-339E5 and 23-340E5 (RQDX3-F002 / EQ-01532-02) I'm not sure if the 23-166E5 and 23-167E5 really exist; I have every version of the RQDX3 ROMs except those, and the numbers may be a typographic error (as implied in one of the FCOs). Or else they were so bad they were replaced before or very quickly after the RQDX3 release. I also have the RQDX1/2 ROMs versions 7, 8, 9.0, 9.4, 10E, but not 10D. -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

3
2
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Stupid Amiga Tricks

by Lee.Davison＠merlincommunications.com

> Wasn't the expansion bus connector upside down on the A500 compared > to the A1000? No, it was back to front and on the wrong side. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 2 months

1
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Macs: Billions and Billions sold.

by cb＠mythtech.net

>None of the goodwill/salvation army stores near my home in NE Massachusetts >will even accept computers of any kind for donations. That really annoys >me, both from a donatig and a collecting perspective. The one near me had the same policy. They would refuse them, and if they were left when the place was closed, they would chuck the CPU in the dumpster and sell whatever parts and software was left. Alas, the place is now closed, so I can't dive there any more (the building owner felt a Salvation Army store wasn't the right type of "image" for the shopping district it was in... humm... I guess it stood out to much against the gas station, car dealership, porn movie rental place/subway sandwich shop (yes, both in one store... get your porn and a snack at the same time), Hooters and swamp land. Go figure. -chris <http://www.mythtech.net>

22 years, 2 months

1
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MicroVAX 3100-30s available in Cambridge, UK

by pete＠dunnington.u-net.com

On Jun 10, 23:21, Antonio Carlini wrote: > I've just checked and I already have these: > [list of EPROMs] > I do have other machines around that I could > (eventually) check and probably read the EPROMs > (once I check out the programmer - or image > them in the office). > > So who is going to be the repository holder? How about adding them to mine, at http://www.dunnington.u-net.com/public/DECROMs/ -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

1
0
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USB 5.25" floppy drive

by pete＠dunnington.u-net.com

On Jun 10, 14:45, Barry Watzman wrote: > [Next I will want a USB 8" drive ..... which, actually, with the right > software, would not be a bad idea !!] Ah, but could it (or even a 5.25" one) do single density? -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

1
0
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HP serial card

by pete＠dunnington.u-net.com

On Jun 10, 10:05, Stan Sieler wrote: > Re: > > brown-painted panel, labelled "RS-232-C", over a DB25S, on the other. > > Part number 02670-60068. > > > > I've no idea what it's off, and no way to test it; yours for the price > > of postage if you can use it. > > My guess is that it's for an HP 267x printer/printing-terminal, > but I'm not sure. (No, I don't need one :) Thanks :-) Well, I certainly don't need it, so if not claimed by Monday night, it will be used to enrich the local environment (Tuesday is bin day). -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

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tektronics XP419C

by slug＠aeminium.org

Hello Marc, on my search through google i found a message from you saying that you could put to work several tektronics XP419C X terminals. I got one but i need the X server binary so i can download it to the machine using tftp/nfs. Could you please point me to some location or better, would you be kind enough to send me the .tar.gz of it? Regards, Nuno -- CT1FOX - http://aeminium.org/slug D30B 54C0 40A7 7D61 C44F 4BA4 F071 2168 F494 ACB9

22 years, 2 months

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Apple LaserWriter questions

by msokolov＠ivan.Harhan.ORG

As an alternative to DEC LPS, one other possibility I'm considering for a perfect PostScript printer would be an original Apple LaserWriter. But since I'm NULL in apples, I need some help. 1. Are all LaserWriters 100% pure PostScript printers, speaking nothing but PS? I know the very original one was, but I'm not sure about whatever happened later and whatever they make now. 2. Were there any LaserWriters made with duplex printing capability? If so, what's the earliest duplex LaserWriter? 3. The original LaserWriter had a serial port. But given the assault on serial ports coming from all directions, I don't expect the current ones to have one, or do they? When was the last LaserWriter made with a serial port? Was there ever a LaserWriter new enough to support duplex printing but old enough to have a serial port? 4. Are LaserWriter serial ports standard EIA-232 DB25 or something Apple proprietary? If the latter, what kind of adapter would I need to make? MS

22 years, 2 months

4
3
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Looking for Pittman's Tiny Basic

by bob＠applegate.org

Tom offered to send me a paper tape if I could read it. I asked on this list and got a lot of offers to help... thanks to everyone who wanted to help! Today I got email from Tom again. He moved several years ago, and just went to look for the tapes. The box labeled TINY BASIC had paper tapes, but not for Tiny. He's optimistic that he might still have the original tapes somewhere and he plans on looking for them. The only version he found so far has been for the 1802. In the mean time, if anyone on the list has any version of Tom's TB, he might appreciate getting copies, even if it's just the binaries. I'm desperately seeking the 6502 version, so hopefully someone can get a copy to Tom. He must have sold quite a few copies, considering they were originally $5 each ($5 for software? Amazing!). Hopefully someone has some old copies laying around. Bob

22 years, 2 months

2
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Help with Lisa Needed

by mross666＠hotmail.com

>Does anyone know for sure that if the 4 batteries on the Lisa motherboard >are dead, if that will prevent it from powering up? This machine was >working >about 3 years back when it went into storage. Thanks for any tips. No, it won't... but one thing you have to watch; there are two microswitches to detect if the covers are on or not - one front, one rear. If they aren't closed, either by the covers or 'bodging', the thing won't power up. I've picked up a couple of cheap 'dead' Lisae where that was the only problem! Mike http://www.corestore.org

22 years, 2 months

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HP serial card

by pete＠dunnington.u-net.com

I've been tidying up (ahem) the workshop and came across a board I'll surely never use. It's some sort of Hewlett Packard serial card, about 8.5" long and 4.8" wide, with a 50-way edge conector at one end and a brown-painted panel, labelled "RS-232-C", over a DB25S, on the other. Part number 02670-60068. I've no idea what it's off, and no way to test it; yours for the price of postage if you can use it. -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

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Simulators & AppleII copy protected disks ?

by cb＠mythtech.net

>Does anyone know if there is software available to transfer Apple II >disk images on a raw-binary basis (ie: not necessarily well formed >sectors), and if so, are there any simulators which can make use of >such images? > >I know this would be fairly complex, as the Apple could do half >tracks etc., and timing can be critical to many Apple copy protection >schemes. These factors would also have to be delt with somehow - is >there anything available which can do this? I don't know about getting past the copy protection, but there is at least one fairly vast archive of Apple II software available online. I never remember the exact address, but it is something with asimov.net (the A2 newsgroups usually make mention of it from time to time) Your friend can always check there to see if the software he needs to transfer has already been made into a disk image that he may be able to use with the emulator. -chris <http://www.mythtech.net>

22 years, 2 months

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Cheetah Cub memory board For Sale or Trade

by doc＠mdrconsult.com

:-) Seriously, I have no use for the board and it looks to be in excellent shape. There's no point in letting it languish in a box for several more years. Specs again: ISA bus memory board Cheetah Int'l. Inc. "Cheetah Cub 2Mbyte Fast Memory" 4 banks of 18 256Kx1 socketed chips There is a set of DIP switches per bank, but there is no labeling and I have no docs. I've also never tested it and have no way to do so. For sale - Steve Thatcher says the memory chips are worth $0.75/each, and the baseboard probably sold for hundreds of dollars, so I figure $200USD. When you finish laughing, make me an offer. ;) For trade - GVP SIMM32 1MB or 4MB modules or 1Mx1 DRAM chips, or other ger for an Amiga 2000. If you have trade beads that are worth more than the Cheetah board, let me know. I'm not allergic to letting go some cash. Doc

22 years, 2 months

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The Lear Siegler ADM3 story concludes.....

by d_cymbal＠hotmail.com

They were there.......they weren't there.......they were there. After removing a rather large dumpster's volume of *stuff* (literally - should give you an idea of why we couldn't find them in the first place) from my father's storage shed we uncovered some of the little pale blue friends hiding in a back corner after all. There were not as many as we had originally thought (only 4) but they were there. 1 is already sold, 1 has a screen issue and I still need to test out the other 2. Anyway if you are local to Methuen MA and are interested let me know. I would prefer not to have to deal with shipping hassles unless I can't move them locally. I am thinking $10 for the unit with the screen prob and assuming the other 2 test out ok, $25 each for those. I also have a bunch of Visual Technology model 55 and 310 terminals if those are of any interest to anyone. Thanks for humoring me throughout this ordeal.

22 years, 2 months

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decstation cache in boston

by trash3＠splab.cas.neu.edu

I live less than an hour from boston, I talked with Fred last night and unless somebody beats me to it, I will pick up everything from Fred. Joe Heck

22 years, 2 months

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Cheetah Cub board

by melamy＠earthlink.net

Hi Doc, you are welcome. Always take your shoes off though, so you won't ruin a good pair of shoes... best regards, Steve > Thanks, Steve, Tony, Bill, Brian, Gene, and everybody for the >tutorial. It helped a lot. Now, instead of being afraid to pick up the >gun, I can go shoot off some toes.. > > > Doc

22 years, 2 months

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LF: Cromemco System3 boot floppy & HD info.

by dave04a＠dunfield.com

Mike K. and I are working on resurrecting a Cromemco System 3 This is a large S-100 rack-mount unit with dual 8" floppy drives and internal hard drive. Got it powered up yesterday, and all DC supplies appear normal. Managed to get it working to the point where it tries to boot from the A drive (floppy) - unfortunately we have no boot diskette. We able to get into the 'RDOS' ROM monitor for which we have no documentsion. Discovered the 'BA-BD' commands which try and boot: BA accesses the first 8" floppy, BB accesses the second 8" floppy. BC&BD just "hang". Also discovered an 'I' command (IPL?) which also hangs... We were not able to get any action from the hard drive - I don't know if it would be booted by 'BC', 'BD' or 'I' (or something else). I did note that the HD power was disconnected when we opened the box, so I do not know if the hard drive even works. Q1) Does anyone out there have a boot diskette for a Cromemco System 3? I'm pretty sure that if we had a boot diskette we could bring the system up. Q2) Can anyone tell be exactly what needs to be done to boot the hard drive? Are there any diagnostic procedures that we can use to confirm that the HD is operating? Any information or pointers to information on this system would be very much appreciated. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

22 years, 2 months

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Cheetah Cub board

by melamy＠earthlink.net

hmmm, I thought there were four rows of 18 chips. That sounds like 8 banks of 256K which seems like 2meg to me... unless I got something wrong as for board worth, the 256K chips are worth a bit. I found a site that had them for sale at $0.75 each. If you need a PC to run it in, buy one on eBay... LOL (couldn't help that one) best regards, Steve -----Original Message----- From: Doc Shipley <doc(a)mdrconsult.com> Sent: Jun 9, 2004 1:28 PM To: General(a)mdrconsult.com, Discussion@mdrconsult.com@null, On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org>, null@null Subject: Re: Cheetah Cub board Steve Thatcher wrote: > that is a Micron part number for a 100ns 256K ram. It is probably an EXPANDED memory card unless it has two bus connectors then it might be EXTENDED memory (didn't we just have a conversation about PC memory...) Ehh? 256K? So either the board provides 16MB of RAM, and the 2Mbyte silkscreen is just the shipped configuration, or somebody was wasting 87% of their money? BTW, the 10ns was a brain fart. I dunno much about DRAM, but I can read the -6, -7, and -etc extensions... :) So, more relevant to me, is the board itself worth anything outside the DRAMs? I have a friend doing a 68000 SBC project who could use some, and I think some of the rest would look fabulous on my Amiga 2000's A2091 board. One note - It looks like the DIP switches can be set per bank, but without docs, I'm guessing that taking any of the RAM off will render it inoperable. > It is more than likely one of the two memory standards and will work in any OLD PC. But I don't have any old PCs. :) BTW, your line wraps seem to be set to 256 or something. Doc

22 years, 2 months

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Help to ID Unibus board

by squidster＠techie.com

Hello list, I've recently acquired a PDP-11/04 which in its past life was the controller of a CNC precision drill/router (not the network kind) system. Inside which have 2 boards (Unibus of course) described as below: First clue: Upper left hand corner says it's from "Advanced Controls Corp.". A quick search points to http://www.acsmotion.com as they seem to be in the same field, industrial/machine controls. Alas, their tech support doesn't even have a clue as to what a Unibus is... Both boards appear to be the same model/type, but one is a earlier revision with a lot of reworks; i.e. jumpers and 2 smaller daughterboards, of which the later revision board doesn't have. Each board have 2 BERG-like male connectors (50-pin and 40-pin) which (guessing here) connects to the actual drill/router itself. The board is made out of SSI/MSI/LSI TTL ICs. The most complex/prominent are the two 12bit Analog Devices DACs from the DAC80 variety, both made in the late 80s: DAC #1 - ADDAC80N (24-pin) - CBI-V - 8802 DAC #2 - ADDAC80D (24-pin) - CBI-V - 8811 I guess these are for the X-Y positioning, but of course I may be WAY out here.. Board #1 - S/N 11926 (sticker) - P/N 18992-103R (scribbled on handle) On the upper left hand corner: - Advanced Controls Corp. - PCB Detail No. 17795 Rev. H - ASSY No. 18992 Rev. - Replaces 17750 Board #2 - S/N 0000005077 (sticker) - P/N 18992-102R (scribbled on handle) On the upper left hand corner: - Advanced Controls Corp. - PCB Detail No. 17795 Rev. D - ASSY No. 17750 Rev. If anybody can positive ID these boards, it'd be great! If anybody has the programming docs for these, it'll be even greater! :-) /wai-sun p.s. These boards seems to have last tested OK on Oct 28, 2002 (from a "tested" sticker)! -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

22 years, 2 months

1
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Cheetah Cub board

by melamy＠earthlink.net

the little guys are only 256K by 1, so it takes 9 of them to make a 256K byte bank. PC memory has always been spoken off by the byte. As for the Amiga, it will take 8 (or 9) to make each 256K byte upgrade. Of course, getting nit picky, 256K bytes could be thought of as a 2meg bit upgrade - it sounds impressive and it what a saleman would have said... LOL I can understand your need to stick your face in mud rather than buy a PC... :) best regards, Steve -----Original Message----- From: Doc Shipley <doc(a)mdrconsult.com> Sent: Jun 9, 2004 3:09 PM To: Steve Thatcher <melamy(a)earthlink.net>, General(a)mdrconsult.com, Discussion@mdrconsult.com@null, On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org>, null@null Subject: Re: Cheetah Cub board Steve Thatcher wrote: > hmmm, I thought there were four rows of 18 chips. That sounds like 8 banks of 256K which seems > like 2meg to me... unless I got something wrong No, I guess I got it wrong. I thought you meant 256K per chip, or 4MB per bank (16 * 256K plus 2 * 256K for parity). So are these 256K per bank, or 256K per chip? IOW, if they turn out to be compatible and I install 16 of them on the Amiga A2091, will that be a 2MB or 0.25MB upgrade? I'm a complete retard at memory components. It doesn't make sense to me at all, even after a fair amount of reading and some explanation from some Smart People. > as for board worth, the 256K chips are worth a bit. I found a site that had them for sale at $0.75 each. Well, that wouldn't suck. Of course that means they're really worth about $0.20/each. :) > If you need a PC to run it in, buy one on eBay... LOL (couldn't help that one) Heh. I'd rather stick my face in the mud.... [family joke] Doc

22 years, 2 months

2
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