test-drb April 2003

test-drb@ccmp.vtda.org

272 participants
486 discussions

Needed rackmount stuff for an 8/E, 8/M, and 11/20...

by root＠parse.com

Hoping someone has some spare rackmount parts. For my 8/E, it was pulled out of a rack, so it just needs the parts that are inside the rack -- approximately 1+3/4" high sliders; my /E has the part that goes *into* the sliders. For my 8/M, it needs the complete rack kit, as does my 11/20. Anyone able to help out? Thanks in advance, -RK -- Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting and Training at www.parse.com Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers!

21 years, 8 months

Running T5200 R u interested?

by sidneybnice＠earthlink.net

Everything works but the floppy drive. Don't know if it is the controller or the floppy drive. Anyway it is in my closet taking up space. ______________________________ Respectfully and with my best regards, Sidney B. Nice sidneyb(a)vonl.com

21 years, 8 months

How many Mark 8's?

by jontitus＠attbi.com

Hello: Let me chime in on the number of Mark-8 computers, etc. Several years ago I went through some old records that showed the royalties paid to me by both Radio-Electronics magazine and Techniques. R-E paid a small royalty for each of the instruction booklets they sold. You may recall the original magazine article could not hold all the information and construction details. Techniques paid a royalty on the sets of printed-circuit boards (PCBs) they sold. Based on the information I still have, I figure R-E sold about 7500 copies of the booklet, and Techniques sold about 400 sets of PCBs. Unfortunately, the original R-E article and the booklet failed to publish a key piece of information: the wiring diagram for the board-to-board connections. So, I heard from many people who needed this information, but these communications took place before email and low-cost fax, so I have no record nor recollection of how many people I spoke with. As you can probably guess, I also have no idea how many people actually built a Mark-8, nor do I know how many of those built systems still exist. My original Mark-8 is in the Smithsonian, and it was in working condition when it left here, so that counts as one system. The prototype memory board for the original point-to-point wired Mark-8 prototype went to the American Computer Museum in Bozeman, MT in October. The ACM also got mimeographed copies of the original "Mark-8 Newsletter" and its successor, the "Micro-8 Newsletter." If anyone has questions about the Mark-8, refer to the Web site: http://www.his.com/~jlewczyk/adavie/mark8b.html which contains information I wrote back in 1999. (I need to go back and clean it up a bit.) Please note, the email addresses in that posting are incorrect. People can reach me at the permanent email addresses: KZ1G(a)ARRL.NET or jontitus(a)hendrielane.com For a while longer, the jontitus(a)attbi.com email still works. We expect a shift to comcast.net sometime soon, though. Cheers, Jon Jon Titus 36 Sunset Drive Milford, MA 01757-1362 USA Phone: +1-508-478-8040 E-mail: jontitus(a)attbi.com Member, National Association of Science Writers

21 years, 8 months

H89 CP/M hard-secored boot diskette

by dwightk.elvey＠amd.com

Hi I guess the next question is, does anyone have the dumps of these chips or what the new mapping is?? I suspect that there is some remapping of the memory and some for the I/O. I don't know why it would take 3 chips though. I'll have to dig through my stuff to find a schematic. I may be able to figure it out from there. Dwight >From: "Patrick Rigney" <patrick(a)evocative.com> > >> > > Tony, out of curiousity, what are your versions of the >> various PROMs and >> > > EPROMs at U516, 517, 518, and 520 on your Z90? >> > >> > That would involve getting to the Z90, which is not going to be >> > trivial.... > >FYI, I found this while trolling through some links on retroarchive.org. >Excerpt (edited) from an Arpanet message dated 17-feb-1984: > >"When I ordered CP/M the first time and it didn't work, I called >Heath and they said "Oh, yeah, you need a hardware upgrade!" >So I did the following: > >1) Replaced the 444-42 in U517 with a 444-66 >2) Connect a jumper from the middle pin of U503 to pin 17 of P509 >They assured me this would work. However, to make the full upgrade, >I could also do: >3) Replace the 444-40 in U518 with a 444-62 >4) Replace the 444-43 in U550 with a 444-61 >If I did this, I would lose cassette capability. Since this wasn't >necessary (they said) I decided to just do 1 & 2. > >When I did this and it still didn't work, I called Heath again. They >said it should have worked and my disk must be bad. So they sent me >a new disk..guess what, still didn't work. Then they say hardware >problem with the disk drive. That's when I put my problem on the net. >Mr. D. C. Finch of Phoenix was kind enough to write me a letter >(they have R/O access to the net) which told me that indeed 3 & 4 >were necessary (at least for CP/M 2.2.03 and later). So this morning >I called Heath again and they said, "That's right, you have to replace >all three chips!" Just wish they had said that back in November!! >I'll be happy to give anyone the details of Mr. Finch's letter if >asked, I don't think most people are that interested.

21 years, 8 months

Tandy 6000 available for pickup in AR (was RE: TRS-80 Madness)

by kelly＠catcorner.org

not by me... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=179&item=3412008207&r d=1 A 6000 with external HD and some software. Must pick it up though. Comes with a bunch of PeeCees too. Guy says you can pick and choose what you want. Only 4 hours left and is only $1.00 right now... Kelly

21 years, 8 months

Interfacing HP82905A Printer to HP85

by vassilip＠dsl.cis.upenn.edu

The manual is available at <http://www.series80.org/Manuals/HP82905B.pdf> The www.series80.org site contains scanned manuals, programs and pictures of the HP Series computers and peripherals. **vp

21 years, 8 months

Juki 6100

by Profllew＠aol.com

Mike Davis, You probably already have an answer on your question about a ribbon for the Juki, but on the rare chance you haven't: Ribbons for the IBM Selectric II work on the Juki. Some of the newer ribbons tend to snag about half way thru and I have to remove the old ribbon half and attach the new to make the ribbon work. I'm trying to find a driver for the Juki to install on newer word processors. Bill Lllewellyn

21 years, 8 months

HP Laserjet Series II

by jklein＠electronic-boardroom.com

God bless you John! Mine has just started having paper getting stuck on the "teeth roller" underneath the larger one next to the green felt "hot" area. It needs a new smaller roller cause worn out. There are a number of rollers that look like this, how do I tell which one it is in order to order the right one? Thanks very much. Somewhere down the line I'll return the favor. Regards, June

21 years, 8 months

V-Tel

by acruicks＠cix.compulink.co.uk

Dear Andreas, I found your message; http://www.classiccmp.org/pipermail/cctech/2002-December/005834.html I wondered whether you would be willing to give me a copy of your 'V-Tel' client? I've been looking for something to Telnet into a mail server using the PsiMail Internet TCP/IP stack, but all I've found so far is alpha-quality Telnet clients. I would be very grateful if you could help. Regards, Alex Alex Cruickshank 12 Barton Way, Croxley Green, Herts., WD3 3QA, UK +44 (0)1923 773112 acruicks(a)cix.co.uk

21 years, 8 months

Favorite Terminal Emulator

by classiccmp＠vintage-computer.com

Does anyone have a favorite Windows based terminal emulator? I've been evaluating several but I haven't come across any with every terminal I'd like to emulate and every feature I've been looking for. Tiger Term - http://www.tigerterm.co.uk <http://www.tigerterm.co.uk/> is my current favorite but it's missing a few terminal emulations that I'd prefer (VT100 being the most important). Any package I consider would support most vintage terminal types and ascii file transfers as well as a few more common protocols (XModem, Kermit, etc.) So, does anyone have a favorite for when they aren't firing up there ADM3A or VT52? Erik

21 years, 8 months

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test-drb April 2003