test-drb October 2001

test-drb@ccmp.vtda.org

259 participants
770 discussions

by dhquebbeman＠theestopinalgroup.com

> Our sawmill uses an HP-1000 for process control; it has an infrared paper > tape reader and an ASR 33 Teletype. And they all work. But I'd like to > replace the teletype with a PC. Does anyone know how to make a PC emulate an > ASR 33?? Most PCs running Windows either have installed or can have installed on them a terminal emulator named Hyperterm which can do what you want. However, the serial ports on PCs are RS-232C ports, while many ASR33s had 20ma current-loop serial interfaces. You'll need to either get a converter, or a separate 20ma current-loop serial card for the PC. BlackBox used to have both of these, but they got acquired, IIRC, and I can't recall the new firm's name... For the paper tapes, once read in, you can just use Hyperterm's file transfer... oops, NIX that, I see ASCII mode is not among Hyperterm's file transfer options... Hmmm, you may need to use something like PROCOMM PLUS or ProcommPlus/Win... they still have the ASCII transfer mode. Or just run DOS and use COPY, I did that with a PC and a friend's CNC machine a few years back, worked quite well. hth, -doug q

22 years, 9 months

Looking for PDP-1 listings

by dpeschel＠eskimo.com

No, not PDP-10, PDP-1. Thanks to Al Kossow, I already have the manual for MACRO, but he didn't scan the source listings (which are supposed to come with the manual) and I haven't found anyone else who has a copy. Any other listings (DDT, TECO, MIDAS, the LOGO programming language, TVEDIT or any of the timesharing systems) would be interesting too. I'm trying to spiff up the cross assembler that comes with Bob Supnik's simulator, so that's why MACRO and MIDAS are important. I'm also trying to understand Peter Deutsch's LISP, so that's why DDT is important. The others would be just for fun. I already have Spacewar from http://lcs.www.media.mit.edu/groups/el/projects/spacewar/sources/ but maybe someone has a newer version. Thanks, -- Derek

22 years, 9 months

IIgs using hard disk 20

by geoffr＠zipcon.net

Apple II SCSI card :) At 11:21 AM 10/16/01 -0400, you wrote: >! From: Louis Schulman [mailto:louiss@gate.net] >! >! Won't work, simply because the floppy port on the GS doesn't >! have the firmware to support the HD20, while >! the early Macs did. But there are many better hard drive >! options for a GS, anyway. >! >! Louis >! >! On Mon, 15 Oct 2001 16:39:02 -0400, Chris wrote: >! >! #Does anyone know if an Apple IIgs can use an old Macintosh >! #Hard Disk 20. The Mac HD is NOT scsi, but rather uses the >! #disk drive port on a Mac. It ... > >Louis --- > Umm, okay, what are those other HDD options? I'm curious... :-) > >--- David A Woyciesjes >--- C & IS Support Specialist >--- Yale University Press >--- mailto:david.woyciesjes@yale.edu >--- (203) 432-0953 >--- ICQ # - 905818

22 years, 9 months

FREE: IBM PC Convertible (austin, tx)

by mrbill＠mrbill.net

Got an IBM PC Convertible free for pickup in Austin, TX. Works fine the last time I plugged it in 2-3 years ago, has battery, AC adapter, and "port expansion" (serial, parallel, etc) "pack" on the back. In IBM canvas carrying case. Will not ship - pickup only. Bill -- Bill Bradford mrbill(a)mrbill.net Austin, TX

22 years, 9 months

New aquisitions: PCjr (minus power supply) and Amstrad PC 6400

by lgwalker＠mts.net

Just tried them again, and they downloaded with no problem. Must have been some problem on my end. Thanks for the data. Lawrence > I tried to get these scans but they wouldn't come up on my browser alas. > > Lawrence > > > I have a copy of the PCjr Technical Reference Manual. I bought a PC-Jr for my > > brother years ago and got the Reference but never used it. "L@@K RARE > > computer book". > > > > On page 2-135 > > "The system power supply is a 33 watt, three voltage-level, two stage > > supply" > > > > Appendix D-1 > > Transformer > > Input: 110 Vac 60Hz > > Output: Pin 1 - 17Vac, Pin 2 - GND, Pin 3 -17 Vac > > > > I put scans of the internal Power Supply schematic and PCB here: > > http://members.home.net/swtpc6800/PC_JR/ > > > > Download them now before AtHome goes out of businness. > > > > ----------------------------------------------- > > Michael Holley > > holley(a)hyperlynx.com > > ----------------------------------------------- > > > > > > Reply to: lgwalker(a)mts.net

22 years, 9 months

IBM Punched Card equipment docs

by mhstein＠usa.net

IBM PC system meant something different back then :) Here's the list, for Norm, Erik, Dave and anyone else who inquired or may be interested; a little musty but generally in good shape. REFERENCE/OPERATION MANUALS 24/26 Card Punch/Printing 46/47 Tape-to-Card Punch 56 Card Verifier 65/66 Data Transceiver/Printing 77 Collator 2, 1 no cover 82/83/84 Sorters 101 Electronic Statistical Machine 2, 1 no cover 402/403/419 Accounting Machine 3, 1 no cover 519 Electric Document-Originating Machine 2 519 ditto, Principles of Operation 528 Accumulating Reproducer 548/552 Interpreters 549 Ticket Converter 550/551/552 Card Interpreters - Principles of Operation 557 Alphabetic Interpreter - Preliminary 601 Electric Multiplier - Principles of Operation 602-A Calculating Punch 604 Electronic Calculating Punch 2 650 Magnetic Drum Data-Processing Machine 654 Auxiliary Alphabetic Unit CUSTOMER ENGINEERING REFERENCE MANUALS 602-A Calculating Punch - w/wiring diagram 77/85/87/89 Collators 402/403/419 Accounting Machine w/wiring diagram 24 Base 24/26/27/28/46/47/56/65/66/526/534/536/824/826/834/836, Wiring diagrams for 024 and 056 only Also, some interesting pamphlets about system design, procedures & control with these machines and I'll even throw in ref manuals for a Honeywell 400 and the Burroughs B200 Series (not the famous B205, but 250-280). The stack is abt 7" high, wt. abt. 10 lbs. Don't know about any others, but FWIW, I see there's a 604 manual at: http://www.spies.com/~aek/pdf/ibm/604_OperMan.pdf What I'd like to do to save time & trouble is ship it all to Norm since he generously offered to scan it, and then you can sort out who needs and gets what. mike/ccs

22 years, 9 months

Network protocols - RS232 Serial

by mhstein＠usa.net

That's the baby, all right, but both the units and the manuals say "Products"; guess when they made yours that was the only product they had :) And these are the NC16 serial-only model, HW or XON/XOFF selectable, no parallel ports (but I do have some S/P converters... :) And I was mistaken, now that I think back; the RJ45 model (which these are) can not select DCE/DTE, it's fixed (although I don't recall which). $2995 (no, no decimals in there) when new!!!! Just found the price list. And these later models handled binary data a little better. Did I mention modem/printer sharing, many-to-many? Or computer-less local e-mail & messaging (within 250 K of course)? mike ------------Original Message------------- Date: Thu, 18 Oct 2001 19:41:00 +0100 (BST) From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: Network protocols - RS232 Serial > > Now that the OT ramblings are dying down, a serious one (sort of): > > Anybody have a use for one or more Data Products Inc. NC16/250 > NetCommanders (Not to be confused with Diamond's NetCommander ISDN > adapter)? Are you sure that's not 'Digital Product Inc'? I have a couple of NetCommanders here. Quite nice multi-port RS232 and parallel 'switchboxes'. <snip>

22 years, 9 months

ASR 33 Emulation - help!

by dhquebbeman＠theestopinalgroup.com

> Douglas Quebbeman wrote: > > > > For the paper tapes, once read in, you can just use Hyperterm's > > file transfer... oops, NIX that, I see ASCII mode is not among > > Hyperterm's file transfer options... Hmmm, you may need to use > > something like PROCOMM PLUS or ProcommPlus/Win... they still > > have the ASCII transfer mode. Or just run DOS and use COPY, I did > > that with a PC and a friend's CNC machine a few years back, worked > > quite well. > > Nobody on this list likes KERMIT anymore ? > Just wondering. I was never a big Kermit fan. It came at the very end of the days when it would have been of most use to me (76-81). As a nearly charter member of Ward & Randy's BBS, I adopted Ward Christiansen's XMODEM protocol, and used MODEM/MODEM86 during those years. First time I saw it was a copy that came with an 8051 protoboard in '87 and it gave me fits, being generally much less capable than a clone of Andrew Flugelman's terminal emulator/transfer program (forgot the name). PROCOMM most closely resembled Andrew's program, so that became my standard terminal emulator under DOS, and later Windows. Regards, -dq

22 years, 9 months

5.25 floppies available

by mythtech＠Mac.com

More stuff being made available by me. I have 5.25" half height floppy drives, both HD and DD's. All working, all free (+ shipping, or you can pickup in NJ). I have about 10 of each. Any takers? -chris <http://www.mythtech.net>

22 years, 9 months

IIgs using hard disk 20

by dhquebbeman＠theestopinalgroup.com

> > Great product, I used mine with a Cutting Edge 30MB external drive > > until the drive's piggyback OMTI SCSI <=> MFM adapter went south. > > > > Anyone know where I can get one of these tiny adapters? > > Doug, what size was the OMTI bridge controller? I have several of the > 3.5" form factor. If that size, do you have the model number? Ok, On the board: SMS MODEL OMTI 3 FAB 005298 REV A.3 ASSY 0005447 REV A Chipset is NCR 0380xxx family with SMS & OMTI labeling. Paper label on one chip says OMTI 3127 and repeats the assembly number given above. ROM is labeled 1002550-A, 3127(C). If a working one of these doesn't get the drive going, then the pro0blem was with the drive. But I was hoping I'd killed the controller with improper termination. It sometimes seems to work at first, but then craps out as it warms up. The drive activity light comes on and stays on at that point. I'd sure love to get the damned drive backed up... I think I have copies of everything on there, but perhaps not. Regards, -dq

22 years, 9 months

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test-drb October 2001