test-drb April 2007

test-drb@ccmp.vtda.org

257 participants
560 discussions

by rescue＠hawkmountain.net

Since CP/M machine discussion came up... I have an ATR8000. In addition, it has a (forgot brand) board that goes between the cpu and the mainboard and gives it a SASI ? interface. I also have a Xebec bridgeboard (S1410?) to then convert that to MFM. The only thing I didn't get was the MFM drive (it had long since be recycled by the previous owner into a PC). What I never was able to figure out was how to low level format the HD ! I don't know that I have the formatter. (Either that or it is there and I simply don't know how to use it). I would love it if someone could fill in that long outstanding blank for me... Also, any idea if a SCSI drive could be hooked up in lieu of the Xebec and MFM drive ? I know SASI and SCSI1 are close... but I don't dare do this till I know it will work (don't want to toast the hardware). -- Curt

17 years, 2 months

TONIGHT: 5.25" or 8" floppy disk urgently needed in Austin, TX

by sellam＠vintagetech.com

I got a call from Lucy Frost of Granite House (a video production company) in Austin just now. She's desperately in need of a 5.25" or 8" floppy disk for a video shoot they are doing tonight. They are doing a spoof infomercial for a client around the Btrieve software product. Yes, that Btrieve...it's still being published by a company called Pervasive Software. Anyway, if you can help (Jim Battle?) then please contact her directly: Lucy Frost 512/844-2520 cell 512/481-1300 office lucy at granitehouse.com She tells me they Buda to Roundrock is her vicinity. She knows about the Goodwill Computer Works and is going to try calling them today to see if they can help. I also suggested she try other local thrift stores in the area as they normally have some 5.25" floppies in the electronics section. I don't believe there is any preference for either size format. They just need one and need one now. They had a 5.25" floppy ready for the shoot but it's been misplaced. Someone please help Lucy. -- 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 ]

17 years, 2 months

Linux question

by wayne.smith＠charter.net

> Date: Mon, 16 Apr 2007 23:43:58 +0100 (BST) > From: ard at p850ug1.demon.co.uk (Tony Duell) > Subject: Re: Linux question > To: cctalk at classiccmp.org > Message-ID: <m1HdZvW-000J1GC at p850ug1> > Content-Type: text/plain > > > Ask a question about Linux, everyone falls over themselves > to help - > > and that's certainly nice. > > > > But ask a question about a classic system like the Kaypro 10 - like > > poor Ralph Dodd did on April 12th - and the response is > disinterested > > silence. > > I disagree with the last comment. I am not 'disinterested'. > > I didn't actualy provide the answer to the linux question > because others > had got there before me and I had nothing to add. But I > easily could have > given the answere. Darn it, I've got cat running on this machine > (obviosuly), I can do a 'man cat' to see if there's anything > useful, and > so on. > > No, going back to that Keypro 10. I don't have one. I don't > have a technical or service manual (or a schemaitc) for it. > Coming from a TRS-80 background I have little experience of > CP/M machines (I always felt LDOS was a superior OS), I don't > have a single CP/M luggable. I have no experience at all of > the 3rd party ROMs that I believe were mentioned in the > original question. I can't help the OP. It doesn't mean I'm > not interested -- I am. But the only contribution I could > make would be > 'Sorry, I don't know' and that would be a total waste of bandwidth. > And that's my point. This is a Classic Computer list, yet no one on the list is able to respond to this guy's Kaypro 10 question. Perhaps the question was obscure, but this is truly the playground of obscurity. I would venture that 10 years ago Dodd's post would have received at least a few responses, as there were a lot of CP/Mers then on the list. They seem to have mostly moved on, and the composition of the list has changed. That's not necessarily a good or bad thing - but it is change. At one point in time I would have ventured that 70-90% of the list had some sort of CP/M machine, but I bet that number is now well south of 50%. "Disinterested" probably comes off as a bit too negative. People aren't really distinterested per se, the current composition of the list just isn't focused on these types of machines. Perhaps it would have been better to say "bewildered silence". -W

17 years, 2 months

DEC Terminals available...

by lbickley＠bickleywest.com

If you're in the market for some DEC terminals - VT420 mostly - go to Weirdstuff (Sunnyvale, CA) this week! Doing my weekly Weirdstuff check - I found a lot (approx. 50) of DEC VT420's that are about be scrapped - likely by Friday of this week! Weirdstuff is willing to sell known working (you can test yourself) VT420's for $10 w/o keyboard or $20 w/keyboard. The retail store has been told of this deal - so you can go there - or if you're going to purchase quantity, contact "Jimmy" 408-743-5650 x320. They also have some DEC VT320, VT330, VT520, WYSE and other terminals available for additional $ (They are NOT scheduled to be scrapped). LOCAL PICKUP ONLY (absolutely NO SHIPPING). [I have no financial interest in this transaction] Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

17 years, 2 months

DEC Terminals available...

by Billy.Pettit＠wdc.com

Lyle Bickley wrote: If you're in the market for some DEC terminals - VT420 mostly - go to Weirdstuff (Sunnyvale, CA) this week! Doing my weekly Weirdstuff check - I found a lot (approx. 50) of DEC VT420's that are about be scrapped - likely by Friday of this week! Weirdstuff is willing to sell known working (you can test yourself) VT420's for $10 w/o keyboard or $20 w/keyboard. The retail store has been told of this deal - so you can go there - or if you're going to purchase quantity, contact "Jimmy" 408-743-5650 x320. They also have some DEC VT320, VT330, VT520, WYSE and other terminals available for additional $ (They are NOT scheduled to be scrapped). LOCAL PICKUP ONLY (absolutely NO SHIPPING). ------------ I can't get up to the Bay area again until Memorial Day. If any of you local to the Bay area decide to buy some of these, would pick up one (with keyboard) for me? I can mail you a check, PayPal or your preference. Just can't pick it up until end of May. Billy

17 years, 2 months

Kaypro 10 format.com

by ajp166＠bellatlantic.net

> >Subject: Kaypro 10 format.com > From: info <info at harrells.net> > Date: Wed, 18 Apr 2007 15:52:00 -0400 > To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> > >With all the Kaypro 10 in the group I wondered if someone could send me >a copy of the format.com. I think thats the floppy formatter. >I have a k10 without the kayplus bios and a new hard drive that needs formatting. I have download the kaypro disks from dave's site and the system disk 2 is really multiplan. It may be an image of a bootable disk, IE: system tracks filled in. >I have a program called hdskfmt.com which I was told would work but >it is just a disk certify program. Thanks Does it certify or fail? Does it require a command line arguement to get to format? I thought the formatter for K10 hard disk was HDFMT as well. Allison

17 years, 2 months

HP 1611 Microprocessor Logic Analyzer

by Billy.Pettit＠wdc.com

Al Kossow wrote: I found the docs I have this morning. Basic service manual and Z80 personality module up on http://bitsavers.org/pdf/hp/te/1611 I have the 8080 and 8085 module docs that I'll get to eventually. --------------------- Thanks Al. I appreciate it. I'll be spending the weekend going through these 3 manuals. Then see if I can modify the 1611 to do other, older machines. Billy

17 years, 2 months

IDE Qbus controller (was TU-58s)

by ajp166＠bellatlantic.net

> >Subject: Re: IDE Qbus controller (was TU-58s) > From: Roger Ivie <rivie at ridgenet.net> > Date: Wed, 18 Apr 2007 12:40:41 -0700 (PDT) > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > >On Wed, 18 Apr 2007, Allison wrote: >> Devices that arent MSCP like DD(tu58), DK(RX02), DY(RX02), >> DL(RL02) might make for examples. I'm fortunate to have >> the uncut sources on RL02. Unfortunately I'm not an >> experienced PDP-11 programmer. The upside is I have the >> RT-11 docset. > >You might take a look at the sources for the Pro350/380 hard >disk driver. IIRC (I did some mucking about with that driver, >although it has been years), the controller was quite similar to >the WD1010 stuff that eventually became IDE. >-- that is helpful info. I suspected there were other drivers that might be closer to the hardware then the MSCP route. Allison

17 years, 2 months

Quick survey on equipment

by zmerch-cctalk＠30below.com

Rumor has it that Ethan Dicks may have mentioned these words: >On 4/18/07, Ralph E. Dodd <redodd at comcast.net> wrote: >>Apple II with CP/M card > >My boss at a job in 1984 had one of those for running business >software. I never got to use it, but it seemed to do the trick for >him. > >I should google it to read up on the details, though I'll probably >never run across one in the wild. Dunno... how wild do you wanna get? I think I have a card stuffed in the attic - I don't have a ][, tho... Laterz, Roger "Merch" Merchberger -- Roger "Merch" Merchberger | A new truth in advertising slogan SysAdmin, Iceberg Computers | for MicroSoft: "We're not the oxy... zmerch at 30below.com | ...in oxymoron!"

17 years, 2 months

hardware parity generation

by julesrichardsonuk＠yahoo.co.uk

hacking time... Is parity generation a simple case of chaining exclusive-or gates for the required number of data bits? e.g. for 8 data lines: d0 --+ XOR--+ d1 --+ | XOR--+ d2 --+ | | XOR--+ | d3 --+ | XOR--- parity d4 --+ | XOR--+ | d5 --+ | | XOR--+ d6 --+ | XOR--+ d7 --+ (possibly inverted at the end, depending on requirement for odd/even parity) ... I think that works, but thought I'd ask for list wisdom first :) I don't have a parity generator IC (LS280?) handy, but if the above works then a couple of LS86 chips would do the job*. *possibly a little slower than a "proper" LS280, but that's not critical for what I had in mind. cheers Jules

17 years, 2 months

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test-drb April 2007