test-drb November 2005

test-drb@ccmp.vtda.org

255 participants
692 discussions

Anyone have Practical Computing, December 1978?

by julesrichardsonuk＠yahoo.co.uk

... apparently (according to a letter in a later issue that I'm looking at) they did a review of the RML 380Z - I'd be rather grateful for a scan of the article if anyone has a copy of that issue (and a scanner :) cheers Jules

18 years, 8 months

Shipping between US and Canada

by shoppa_classiccmp＠trailing-edge.com

"vrs" <vrs at msn.com> wrote: > > Anyone with expereince shipping USA to Canada? > > > > I'm talking small stuff, some eproms or manuals maybe a board. > > around the USA I'd just pack a box and off to the post office. > > That should work, but mail to Canada is notoriously slow and subject > to random failures. > > Most of the stuff I've had shipped from Canada was done with UPS, > since they seem to have a presence on both sides of the border. > (I don't know if it is called UPS there, though.) Then you get > delivery dates and tracking and such, for a few extra $. > > If you do more than $500 in a year (I think it is), you also turn > into an importer-exporter, and your packages get zapped with duties. > (That happened to me one year that I was buying stuff on ePay from > Canada.) (That's really weird because it is a subsidiary of UPS that > attempts to collect from you, rather than some government agency.) > > For larger stuff, I'd go with FedEx (but stay away from the helpful > little stores with their extra fees, and look for the regional center). > > HTH, > > Vince Vince - Mailing inside Canada via Canada Post is notoriously slow and subject to random failures. When I lived in British Columbia, regular mail to/from the "rest" of Canada (notably provinces like Quebec, Ontario) took weeks and randomly disappeared quite often too. And this doesn't count the weeks-long postal workers' strikes. Best situation if the recipient is near the border is to ship to a mailboxes-type place on the US side of the border. Most require the recipient to be a regular monthly mailbox renter but some are more flexible. Tim.

18 years, 8 months

Shipping between US and Canada

by shoppa_classiccmp＠trailing-edge.com

Allison wrote: > This is NON_COMMERCIAL and may weigh more than 4 pounds (less than 12) > as paper is heavy. If it'll fit in a big envelope (truly all paper) then far and away the easiest way is to just send it USPS and it'll arrive via Canada Post on the other side, you probably won't have to fill out a declaration form at all. If you put it in a box then you'll have to fill out a simple declaration form at the post office. If you send it via UPS and/or Fedex then you'll have to prepare a bill of sale/bill of lading enumerating the contents, their cost/value (not necessarily the same!), country of origin, etc. If you've done these before it's a rather simple form but it can be daunting if you've never done it before and the shipment gets hung up because you forgot one little detail. The USPS declaration form is really much easier especially for shipments of items of small/no commercial value. Tim.

18 years, 8 months

WTD: Fuse PROM programming specs / datasheets

by philpem＠dsl.pipex.com

Hi, Does anyone happen to have copies of any of the following documents? - Generic I Programming Specification (Signetics) - Generic II Programming Specification (Signetics) - Programming spec for the 74S*** fuse PROMs (National Semiconductor) - Programming spec for the 6*** series PROMs (MMI / Monolithic Memories) - Programming spec for the 27S*** series PROMs (AMD) - 76** series programming spec (Harris) - also datasheets (or at least pinouts) for 74S, 6***, 76** and 27S PROMs I'm trying to build a PROM reader/programmer, and I'd like to make it as versatile as possible. At the very least, I want to program 82S129s with it, but programming them is rather difficult without the specs for the algorithms. I've already got the Generic I spec, but my copy is incomplete - it covers 82S129s and I suspect it was probably included in one of the Signetics databooks at one time. Of course, not having access to any databooks older than 1997 makes it a little difficult to track the info down... Thanks. -- Phil. | Acorn RiscPC600 SA220 64MB+6GB 100baseT philpem at philpem.me.uk | Athlon64 3200+ A8VDeluxe R2 512MB+100GB http://www.philpem.me.uk/ | Panasonic CF-25 Mk.2 Toughbook ... Happiness is a twit filter

18 years, 8 months

Which paper tape hole is bit 1?

by ajp166＠bellatlantic.net

> >Subject: Re: Which paper tape hole is bit 1? > From: "Barry Watzman" <Watzman at neo.rr.com> > Date: Sat, 19 Nov 2005 09:50:58 -0500 > To: <cctech at classiccmp.org> > >I have a chart of paper tape hole patterns for all 128 characters, and it >shows the LSB (bit zero, although the chart numbers them 1-8) as the edge >hole on the 3-hole side, with the bits in order 0 to 7 (or 1 to 8). > >However, one question, this chart shows the high-order bit (parity bit) >punched for every character, no exceptions. Was that a standard convention >in sending ascii files to paper tape? There were three, even, odd and stick (usually 1 but could be 0). TTY when used with PDP-8 was stick at 1 (hole). PDP-8 convention was stick at 1 (hole) for ascii PDP-8 RIM format channel 8 is not used and channel 7 signals addres or data pair (lower six bits x4 for 12 bits address and 12bits data). This allows the 4 six bit pairs to specify and address and data anywhere and non consecutively. PDP-8 BIN format bit 7 was 2 6bit addresses to follow and then the rest are data (six bit pairs). The address is an origin and the data follows in sequential locations. Nominal PDP-8 use was short BIN loader hand toggled in. Load bin tape that contains small BIN format program or loads the RIM loader for more complex programs (basic, focal). BASIC would then read an ascii program tape. Some systems the 8th hole was used for data. PDP8 convention for hole numbering is outside 3 hole side is 1 and numbered through 8 across. 1 2 3 S 4 5 6 7 8 Allison

18 years, 8 months

DEC 861B and 871B power controllers

by pete＠dunnington.plus.com

I'm looking for a spare 871B power controller -- that's the smaller 8A 240V type, with six outlets, used on smaller QBus PDP-11 systems. I have a rack with more than one system, and I'd like to be able to switch two of them on and off independantly from their front panels. I might have a spare 861B (that's the larger 12-outlet 16A 240V version) to trade if that helps. Size and weight suggest it would be better for me to find one in the UK, ideally near York, if possible :-) -- Pete Peter Turnbull Network Manager University of York

18 years, 8 months

Need recommendations on a terminal server setup

by pete＠dunnington.plus.com

On Nov 18 2005, 15:13, Wolfe, Julian wrote: > I'm getting ready to make my 11/23+ available online for people to play > with, but I'm a bit stumped as far as how I should attach the serial lines > to my Ethernet network. At home, I have a Xylogics Annex terminal server with connections to some consoles, including (when I sort out the cables) my PDP-8, 11/23+ and 11/40. Most of those aren't switched on all the time, though. It also has a real VT420 and a Wyse 50, and a few other things attached. Elsewhere, I have an Origin2000 and its MMSC which I'd like to be able to talk to, and I thought of a similar sort of thing as you -- an old laptop running Linux. I also have a spare Racal Interlan terminal server that would do the job, and I've seen Cisco 1000-series, 1600-series, and 2500-series boxes going cheap on eBay that would suit. Some ofthem support 8 or 16 serial lines. However, I've found a little Lantronix MSS1-T which is effectively a 1-port terminal server. If you need several serial lines connected from one PDP-11, go for a terminal server, mounted in the same rack as the PDP. If you're thinking of buying a Cisco or similar, make sure it's a terminal (or console) server -- Cisco call them access servers. The ones with one or two WAN serial ports are not what you want. -- Pete Peter Turnbull Network Manager University of York

18 years, 8 months

Minix

by RMeenaks＠olf.com

Yep, close to 50% and the materials are IDENTICAL! We americans love bond paper and color diagrams, so we end up paying twice as much for textbooks. This semester alone cost me $450 for 3 textbooks and none of them were international editions. There was one book that costs $150 and the international edition was only $60! Ram > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Gil Carrick > Sent: Saturday, November 19, 2005 10:29 AM > To: 'General Discussion: On-Topic and Off-Topic Posts' > Subject: RE: Minix > > > International editions of the textbooks are cheaper. Usually > published in paperback and on thinner paper, etc. We have > many international students here at UTA, many from India. > They almost always have international editions of their texts > that they buy over there and bring with them. I am not sure > of the difference, but I think it must be substantial. Less > than 50% of the price of the standard edition I am sure. > > Gil > >

18 years, 8 months

WTB: HP-85B...

by lbickley＠bickleywest.com

I have an HP-85 - but am interested in acquiring an HP-85B w/128K memory. Please contact me off-list if you have one you'd be willing to sell or trade... Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

18 years, 8 months

semi-homemade micro

by ajp166＠bellatlantic.net

> >Subject: Re: semi-homemade micro > From: woodelf <bfranchuk at jetnet.ab.ca> > Date: Mon, 14 Nov 2005 18:02:27 -0700 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Scott Stevens wrote: > >>It's not licence-bound to a book the way earlier versions were. You can download Minix from their website at no cost at all. >> >>http://minix1.hampshire.edu/ >> >>or >> >>http://www.minix3.org/ >> >> >But I like the book, note I lost my copy a few years ago. Hard copy is nice. > It is. I have the version that came with 2.02 on CD. Excellent book and reference. Worth the price. Whats nice about it I can read the text, look at the code, run it if I care to and borrow ideas. Allison

18 years, 8 months

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test-drb November 2005