test-drb

test-drb@ccmp.vtda.org

101090 discussions

by pete＠dunnington.u-net.com

On Mar 23, 16:33, healyzh(a)aracnet.com wrote: > Well, I know it's a /23, but I don't know the rev, knowing my luck it's not > a Rev A. I'll have to check, thanks for the warning! > > <Sigh> I gather these things would work in a 16-bit backplane such as my > /03's? Yup, that's what they were designed for. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years

teletype wanted.....

by pete＠dunnington.u-net.com

On Mar 23, 13:40, Cameron Kaiser wrote: > Speaking of teletypes, I ended up with a matching set of Philips TX-1000 > Text Tells which are, I guess, meant for teletext transfer over phone lines. > (The manual and the machines are Dutch.) Anyone ever dealt with these? > Know the communication protocol, or are they just like any other traditional > modem when they transmit/receive? The type number looks familiar, but I can't be certain. What do they look like? I expect they'll be V23 Mode 2 (1200 baud FSK receive using 2100/1300Hz, 75 baud FSK transmit using 450/390Hz CCITT tones). If they're what I think they are, they can be programmed with a number to dial, a user ID and a (numeric) password which is sent on receipt of a ctrl-E (ENQ) from the remote end, but it should also be possible to use them manually. Ob.pedantry: it would be Viewdata (comms channels), not teletext (broadcast). -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years

DEC ADV11-A A/D Converter

by pete＠dunnington.u-net.com

On Mar 23, 14:31, Chuck McManis wrote: > You mean like "this board isn't compatible with a 22bit backplane" kinds of > things. (which it isn't BTW, that's what the note is about BDAL18 is > address line 18 which is called BC1 on 18 bit backplanes.) > > I'm not sure how you would use it in a system with a 22 bit backplane. Even > if you pulled the address line off the back plane the board's CSR registers > would show up in memory space and you would have bus contention. I don't believe that's true -- that board uses BBS7 to decode I/O space, so it should appear at the correct address. The only problem is BC1, which, like other "unused" contacts, is grounded (presumably to reduce noise). Just cut the track from the BC1 finger. The ADV11 is listed as "restricted compatibility", not "incompatible". -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years

Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs

by pete＠dunnington.u-net.com

On Mar 21, 23:05, Allison J Parent wrote: > > <I don't really see how the fanout units on offer (or my unsuccessful > <back-to-back device) could do that -- the termination isn't in the > <transceiver or fanout unit, it's a resistor on the end of the cable. > < Anyway, it would still only be one termination domain. Or maybe I've > <misunderstood what you mean? If you mean my back-to-back transceiver idea > <yes, if it had worked, you could use it to split a termination domain into > <two, just like a two-port repeater, or a very simple bridge (except a > <bridge usually separates collision domains too). > > Anyone ever heard of a DELNI? Ok, it was an 8 port AUI to AUI with a 9th > for AUI to h4000 fat eithernet cable. Popular use was for cobbing 4-7 > system together locally if you didn't have the BIG backbone. Logial > equivilent of a 8 port hub used for 10bt. Yes, never knowingly used one, but I've seen them. 3Com made an 8-port(? or 6?) AUI repeater -- one of my friends used one as his hub for a while, I believe. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years

teletype wanted.....

by acierno＠mindspring.com

Hi everyone.... I tried to post the message before but never saw it posted so excuse me if you see this twice. I'm trying to find a teletype to add to my KIM-1- if anyone has one that they are willing to part with ( for a reasonable price) or knows anyone who is selling one please let me know.I've checked the obvious places (e-bay-hell) and have not yet seen one. mark ------- ICQ 40439199 http://www2.msstate.edu/~mja2

26 years

FOCAL (was: KIM/6502 code)

by CLASSICCMP＠trailing-edge.com

>Does anyone know if any FOCAL (DEC originals or otherwise) documentation is >online? The DECUS PDP-8 Focal sources (in PAL10) are available. FOCAL.PA begins with: /**** FOCAL 5/69 **** /E.A.TAFT - REVISION OF FOCALW 8/68 /EAT/ 25-JUL-72 /ASSEMBLY INSTRUCTIONS FOR DECUS VERSION: /INPUT FILES: / FOCAL.569 FOCAL LANGUAGE PROCESSOR / FLOAT.569 FLOATING POINT PACKAGE / EXTEND.569 EXTENDED FUNCTION PACKAGE / 2USER.569 2-USER OVERLAY What I have is in the "nickel" PDP-8 DECTAPE archive rescued by me from the University of Indiana several years ago. The Focal stuff, in particular, is on the web at: http://www.trailing-edge.com/~shoppa/focal/ If you were asking about FOCAL-10 (for a PDP-10), this is available on the web as well, from the home to all good software that's PDP-10 related: http://pdp-10.trailing-edge.com/www/lib10/0462/ If you want the PDP-11 (specifically, for RT-11) sources, you can find this at the Metalab.unc.edu PDP-11 archives as DECUS entry 11-0447. Go to http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/ then go into the RT-11 archives, pick the "decus11" directory, and you'll see three 110477 directories (d1, d2, and d3), one for each original floppy. I also have much RSX and DOS-11 FOCAL stuff that's not indexed yet. I hope this helps. If none of these packages meets your needs, you might ask again for your specific platform(s). Enjoy! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years

FOCAL (was: KIM/6502 code)

by paulrsm＠ameritech.net

Does anyone know if any FOCAL (DEC originals or otherwise) documentation is online? I am delighted to find someone with this software. I would have been satisfied with a printed hex dump, but if you have the manual and the source code, yee-haw! When you find it please contact me. I'll take photocopies, faxes, scans, .PDF, anything. As far as being "machine-readable", for the KIM that would be paper tape or cassette tape; neither are as useful as a "human-readable" version. I found the Denver Area 6502 Group on the web at www.6502group.com; so far they have not been able to help me with FOCAL. www.6502.org has no leads to it that I could find. I want to get this stuff to run on my Apple IIe. I am interested in any KIM/SYM/AIM/6502 software that folks might have, especially with source code. Anyone have issues of MICRO (the 6502 journal) they want to get rid of? I do have the Best of MICRO, vols 1-3 and a few separate issues (#73-76), plus the MICRO on the Apple vols 1-3. Paul R. Santa-Maria Ann Arbor, Michigan USA paulrsm(a)ameritech.net ---------- > From: Richard Erlacher <edick(a)idcomm.com> > To: classiccmp(a)classiccmp.org > Subject: Re: KIM/6502 code (was ClassicCmp paper tape) > Date: Wednesday, March 22, 2000 08:48 PM > > I don't know that anyone has machine-readables of the FOCAL interpreter that > was cooked up in the Denver Area 6502 group, but I do believe I have a > printed manual and a printed listing of the interpreter. I'm quite certain > that I won't be able to find it until well into spring, however. Now that > many of us have scanners, new life is breathed into software available only > in the printed listings. > > Frankly, I hope someone has machine readable files of these items, but I'm > not aware of them. > > Dick

26 years

KIM/6502 code (was ClassicCmp paper tape)

by bill_r＠inetnebr.com

>Hi All > I've been resisting putting this out but I've run out >of my resources. I have a real dilemma! > I've been trying to get in touch with Tom Pittman >but I've not had too much success. I have a copy <snip> >The fellow that claimed to have contacted him was >"Bill Richman" <bill_r(a)inetnebr.com>. I have sent him >mail but not gotten a reply. I hate being in this position. >I know that there are a bunch out there that are looking >for this code. Just for the record, I forwarded your information to Tom, as I don't feel comfortable handing out his e-mail address. He replied that he would get back to you shortly. I'll try to remind him tonight. Bill Richman http://incolor.inetnebr.com/bill_r (Home of the COSMAC Elf microcomputer simulator!)

26 years

Fwd: [GreenKeys] TTY Diagrams, Specs, BSPs FS

by jfoust＠threedee.com

There's some ASR-33 info in this offer from the Greenkeys list... - John >X-POP3-Rcpt: jfoust@threedee >From: Merz Donald S <merz.ds(a)mellon.com> >To: TTY Friends <greenkeys(a)qth.net> >Subject: [GreenKeys] TTY Diagrams, Specs, BSPs FS >Date: Wed, 22 Mar 2000 16:44:59 -0500 >Sender: owner-greenkeys(a)qth.net >Reply-To: Merz Donald S <merz.ds(a)mellon.com> > >FOR SALE: Teletype Documentation > >Each of these packages is a thick stack of Teletype docs from AT&TCo. There >are 20 >or more docs per set. There may be some duplicates. Condition ranges from >like new >to covered with Teletype oil. Mostly offered for the cost of postage and >aggravation. > >Package 1: Model 28 Bell System Practices. Starts with General Instructions >for installing >the Model 28 ASR and covers all manner of modification kits such as >horizontal and vertical >tabulation, multicopy roll paper, keyboard modifications, etc. This is just >a random set--no >attempt was made to organize these or make a complete set. As-is. $5 >postage-paid. > >Package 2: Model 28 Bell System Practices. Same as #1 except a few less docs >in this set. >$5 PPD > >ASR User Manual photocopy. Old copy of AT&T 1961 ASR user guide. Free with >any purchase. > >Bell System Practices Manual Set for Model 164C1, C2, C3 & C4 Telegraph >Transmission >Measuring Sets. 2 manuals: Description/Principles Of Operation and >Calibration and Test >Methods. Both original and like new. This looks like a nice instrument but I >have never seen >one of these. $8 PPD > >Bell System Practices Manual Set for Model 164C1, C2, C3 & C4 Telegraph >Transmission >Measuring Sets. As above but the "Calibration and Test Methods" manual is a >photocopy. >$6 PPD > >Package 3: Model 28 Wiring Diagrams: A 1" thick stack of un-sorted diagrams. >$5 PPD > >MWO 80-3: Mandatory Modification Work Order For M-28 ASR, KSR & KTR. This is >a >comb-bound set of wiring diagrams and modification instructions dated >August, 1971. I'm >not sure what this set was used for. $5 PPD > >Package 4: This is a polyglot of wiring diagrams for "Multi-voltage >Rectifiers," "High-Speed >TDs," "Selective Calling Systems," "CXB200 & MU43," and much more. A total >of about a >1-1/2" thick pile. $5 PPD > >Package 5: M33, 101C, "Four-Row TWX," wiring diagrams. About 1" thick. $4 >PPD > >Package 6: Dataspeed wiring diagrams, Data Systems Schematics, "Recognizer >Module" >diagrams. About 1" thick. $5 PPD > >Package 7: 48V rectifier, high speed receiving distributor, multi-voltage >rectifier, >isolation repeater and others. About 1" thick. $4 PPD > >Package 8: Model 35 wiring diagrams, specifications for various >modifications and a >couple M35 BSPs. About 1/2" thick. $5 PPD > >Package 9: A reasonably complete set of M33 wiring diagrams on 11x17 paper >plus a >package of various M33 diagrams still in unopened wrappers. About 1" thick. >$5 PPD > >Package 10: Everything you wanted to know about the Model 33 but were afraid >to ask. >This includes a complete set of M33 wiring diagrams and a mostly complete >set of >BSPs for the Model 33. This is really nice. About 2" thick. $24 PPD > >Package 11: BSPs and wiring diagrams for a lot of the early Bell data gear. >Covers 101C, >113A, 202C, 402D, 1001D and many more. Nice. About 1-1/2" thick. $7 PPD > >Contact Don at merz.ds(a)mellon.com > >---- >Submissions: greenkeys(a)qth.net

26 years

HP 85 tapes / TU58 tapes

by jhfine＠idirect.com

I have a friend who may be selling some of his TU58 / HP 85 tapes. Is there anyone who wishes to trade and PDP-11 Qbus hardware. I am also looking for a SONY SMO S501 or compatible magneto optical drive and cartridges (512 bytes per sector).

26 years

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test-drb