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101090 discussions

Collection transport costs (was Re: Would You Pay $200,000 for an Original Apple Computer?)

by ethan.dicks＠gmail.com

On Fri, Nov 12, 2010 at 4:47 PM, Teo Zenios <teoz at neo.rr.com> wrote: >> Over a period of 10 years, its not hard to sink $20K into shipping >> fees alone when you collect stuff that needs to be shipped freight. > > Sure if you collect large machines and have them shipped cross country. Most > of the heavy items I have are local pickups... Nearly all of my heavy DEC stuff came from The Ohio State University or businesses around Columbus. I did drive to Dayton once for an 11/750, but I've gotten no item larger than an RL01 or PDP-8/a or VT-52 from out of state. There was the time I ordered an LA-180, but I used a "free shipping on your next order" from Newman Computer Exchange to order that - it came strapped down to a pallet via van freight from MI, right to my front door. I did use it for consulting work later (on a locally-sourced 11/23), but at the time, I picked the heaviest thing for my PDP-8/a that I thought I'd be likely to want. So I've spent a few hundred on renting lift-gate trucks and such over the past thirty years, but even a double-H960 PDP-11/34 setup w/drives and software and docs fit in the back of my 1976 Microbus with room up front for a passenger/loadie. I'm sure someone who collects IBM iron has an entirely different story to tell. -ethan

15 years, 5 months

Paper tape fan-folder Was: Re: Punched cards - which paper/cardboard?

by chd＠chdickman.com

On Fri, Nov 12, 2010 at 5:35 PM, Philipp Hachtmann <hachti at hachti.de> wrote: >> what about fan-fold paper tape? > > I made a "machine" that is able to fanfold paper tape. Yes, but.... > currently only something like a > proof of concept. It worked too unprecisely by far. It needs to be > reconstructed using precision components instead of a mixture of pneumatics, > a stepper motor, and handcrafted wooden parts :-) I was thinking about trying to make one myself. I have a case of rolled paper tape. Any chance you could share a picture or two? The other thought I had was to shear fan-fold printer paper into narrow strips, but the paper shear I have access to is not sufficiently precise to get a consistent tape width. -chuck

15 years, 5 months

need teco suggestions

by bqt＠softjar.se

On 11/11/10 15:22, Richard<legalize at xmission.com> wrote: > I need a TECO command suggestion that will fit in 3 lines of 18 chars > each. > > It would be nice if I could have 5 chars leftover to have "TECO:" or > "TECO " in there:-) What should it do? One thing that I occasionally do is having a list of files in a buffer, I want to add some cruft before and after each file name, to create something useful to run as a command file. Something like this then (without testing, off the top of my head): <xaiPIP $l-2ci/re=LB:[KAKA]$ga-2dl.-z;> I can probably come up with more complex versions of that as needed, as well... :-) Johnny

15 years, 5 months

Meant OSI!

by bdamer＠digitalspace.com

Sorry folks I meant an Ohio Scientific!

15 years, 5 months

Old cromemco C3 in a rack...

by bdamer＠digitalspace.com

If anyone is interested in this, feel free to contact Sharon directly.... HI Bruce, Thanks for the quick reply. I'm attaching a couple of photos. One of the pictures shows the Hazeltine monitor (also available) that was used with the computer. I believe the unit is an Ohio Scientific C3. Here is a link to an eBay item for an Ohio Scientific ad for a similar machine. Ours came with a hard disk, but we no longer have it. http://cgi.ebay.com/1979-Ohio-Scientific-C3-C-Computer-29MB-Hardrive-Ad-/19… What you see in the pics is all we have for the machine. I'd like your opinion and the opionion of any of your contacts whether I should continue to try to find this a home, or just pitch it. I don't want any money for it, but don't really want to pay shipping, either. Also, FYI, I have some sales literature from the period for OSI (including some of the Bill Cosby brochures) and a few others, if anyone is interested. Thanks again, Sharon Maule (309) 231-9237

15 years, 5 months

Christies Auction is more than just the Apple I

by christian_liendo＠yahoo.com

They are selling more than just the Apple 1 A collection of Alan Turing?s Writings Alan Turing?s Off Prints Lot 60 Sale 7882 The First Published ENIAC Patents ENIAC Patents Lot 63 Sale 7882 An ENIGMA Cypher Machine: ENIAC Patents Lot 59 Sale 7882 A book by Charles Babbage ENIAC Patents Lot 57 Sale 7882 http://8bitaficionado.com/2010/11/12/christies-of-london-is-auctioning-off-…

15 years, 5 months

Would You Pay $200,000 for an Original Apple Computer?

by marvin＠west.net

I saw this article about a Christie's auction and found it "funny" in a way. It will be interesting to find out what it actually brings. http://mashable.com/2010/11/12/apple-1-auction/

15 years, 5 months

Virtual memory

by roger.holmes＠microspot.co.uk

> From: Johnny Billquist <bqt at softjar.se> > > Gah. I have no idea what PPU mean, nor PP. You're probably just not old enough. In the 50s the main processor was called the CPU (Central Processing Unit) to differentiate it from the various PPUs, (Peripheral Processing Units). The first machine I programmed, the IBM 7094 had a CPU and two PPUs, one to read cards and write the images to tape transports, which would then be switched over to the CPU to read, compile and execute the job and write the results back to another tape transport which then got switched to the other PPU which then transferred the tape image to a line printer. Somehow now (when most peripherals have embedded processors which could be called PPUs) we seem to have stopped using the term.

15 years, 5 months

surplus source for MRA connectors?

by shoppa＠trailing-edge.com

> In particular, the MRA42P solder cup 42 pin "winchester" plug for > Diablo 31 disk drives. Manufacturer's webpage lists Powell and CDM as stocking distributors. http://dilp.netcomponents.com/winchesterelectronics.html Does the CHM or someone local to you have a RK03? Some mid-late-70's early DEC and DG 3rd-party sellers (AED? DSD? General Robotics?) sold Diablo drives with their own homegrown Unibus and Omnibus interfaces but that stuff was kinda crufty when it brand new, never mind 30+ years later. Wasn't the Diablo 30 the same as the RK03? Tim.

15 years, 5 months

CDC 6000/7000 operation, was: Virtual memory

by dm561＠torfree.net

Date: Wed, 10 Nov 2010 09:58:23 -0800 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: CDC 6000/7000 operation, was: Virtual memory On 9 Nov 2010 at 23:53, Richard wrote: > What you're calling the display controller I was lumping into the PPU. > > The project ends up being the same scope -- you need to drive the > display and there's not much in the display itself. Yup, the 6612 display controller occupied an entire chassis (chassis 12) in the 6600. It basically provided character generation and positioning control for the DD60. At first blush, the DD60 interface looks to be the same as that of your unit. I couldn't find a logic diagram for the 6612 (or 6602) on bitsavers, but I did find the programming reference manual, which might provide some hints: */pdf/cdc/cyber/peripheralCtlr/60333900B_6602_6612_Console_Display_Sep 74.pdf * = insert your favorite bitsavers mirror. --Chuck ++++++++++++++++++++++++++++ I scrapped a CDC display controller many years ago and probably still have some cards out of it (made a nice solid desk as well); doesn't quite look like the picture although the keyboard sure looks familiar. Had a large diode matrix 'PROM' PCB IIRC. I'll check the model number when I'm back home again in case there's anything useful. mike

15 years, 5 months

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