test-drb April 2012

test-drb@ccmp.vtda.org

195 participants
233 discussions

For Sale: Tandy/Radio Shack Documentation & Hardware

by slandon＠centurylink.net

Im cleaning out the shed. I got tons of tandy radio shack documentation, Also got a Tandy 1400HD Laptop that wont power up, Along with a Tandy 386 and a Tandy 486 that work perfect. 2 Huge boxes full of Micro80 Magazine, and Microcomputer magazine Lots of Model 1, 3 and 4/4p Owners Manuals Lots of software manuals.. If anyones interested in the lot I can get a listing. Id like to sell this off in one lot to get my shed space back. Im thinking $200 for it all, and theres enough to fill the back of a car. Local Pickup is always welcome at my place in Flushing MI

12 years, 1 month

how do you crack (open) a Rainbow mono monitor?

by chrism3667＠yahoo.com

There are no screws specific to keeping the back cover on. The only screw/s have to do with the orientation contraption. Do I remove that and use a case popper like a mac? ------------------------------ On Sat, Mar 31, 2012 3:04 PM EDT Tony Duell wrote: >> >> Dropping them from a high place usually does the trick ;-) > >While this is probably a quicker way of gettign the casing off, the time >taken to put it back on again is much longer than with the 'remove the >screw' method. And I think it's the total repair time that's important. > >-tony

12 years, 1 month

Reading VMS backup tapes

by elson＠pico-systems.com

> From: Dave McGuire <mcguire at neurotica.com> > > This may be a crazy idea, but...Why not do it with VMS? > Well, I have a real VAXstation here, with a tape interface that probably works, and I probably still have ESDI drives with VMS on them. But.... > You can install simh on your Linux box, get VMS up and running in > probably half an hour, complete with IP networking. Mount your tape > images via simh and extract your savesets with the software that they > were written to be extracted by. :) > I have great difficulty thinking it is that simple. > I don't know your level of expertise with VMS or simh, so please don't > take this the wrong way, but...if you want to do that and would like > some help, I'd be happy to help you out. I can put together a "canned" > simh VMS installation for something like this in a very short time. > I got simh to teach my kids some machine language programming on the PDP-11. (We had a class last Sunday.) I appreciate the offer, but this would be a last resort. I know VMS darn well, I was system manager and general developer on two VAX systems, and then on Alpha systems for a number of years. I ran a MicroVAX (KA-630) in my home from 1986 to 2007 when the hard drive broke. I upgraded it over the years, wrote my own driver for a 3rd party tape controller that never had a VMS driver, wrote a driver and built an interface for a Jupiter 7 graphics system, and interfaced a bunch of home energy monitoring stuff to it. Also attached a VCB-02 color graphics board set to it, which was never really supposed to work on a KA-630, but it did. Just the console wouldn't work right through the VCB-02, so sometimes I had to hook up a serial terminal. But, although I REALLY liked VMS 20+ years ago, I have moved on, and am now pretty comfortable in Linux. (Do miss the regularity of VMS, if you know how to specify the options of one command, then all similar commands will be the same.) The purpose of this exercise is to recover archival programs before the tapes turn into dust. If all else fails, I suppose I could go that way, but this vmsbackup program seems to try to work, it probably needs a little tweak. It detects the 80 byte header records and stops. All the VMS Backup tapes I've checked so far have two 80 byte headers, this program seems to want one 256-byte header. Jon

12 years, 1 month

OT: Re: Gates Bashing ...

by mtapley＠swri.edu

At 21:43 -0500 4/2/12, Terry wrote: >At least he IS doing something good with his money. Well said. Hear, hear! >Let's move on from the constant Microsoft bashing, please! I do make a distinction between Gates bashing and Microsoft bashing, and yet another distinction between unthinking Microsoft bashing (not meritorious in its own right) and bashing of specific destructive practices (somewhat meritorious in my view). And finally, another distinction between that and making constructive suggestions or contributions to correct damage done by destructive practices (highly meritorious in my view). I applaud the suggestion to move >from one end of that spectrum to the other. But I think I merely elaborate what Terry said first and more concisely. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

12 years, 1 month

another hidden pdp11

by nierveze＠radio-astronomie.com

hello all, yesterday my wife and I emptied our garage(25 years of diverse things stocked inside).I found again my hp1000,I saw a vax8200,a a lot of things that suddenly made me rich :-))etc...and I found something I had totally forgotten ,bought a long time ago as a part of lot bought at the near army base:a Tektronix microprocessor emulation system,made of two (big!!!) racks a 8510 and a 8310.I opened them just to see ,and immediately I saw the two purple dec handles in the 8510.... A lsi 11/2 was here.I brought the rack inside ,removed the dust and spiders, connected to the terminal line labeled 'auxilliary' a VT320 and powered it up,after a few tests,I found the correct speed (2400 bauds) and got the odt, using the run/halt switch of the front panel. I has 32k of ram,the console is at correct place,but the fdc is not at 177170,so I doubt it can boot standart rt11.Unfortunately I found an error in the memory:bit 9 of the first 16k bank is stucked to 1,it may be only a ram chip (4116)to change,the 2nd bank is correct,a few test programs were ok. So if you see such a machine it can be useful. I'd like to find maintenance informations about the Tektronix boards. I'try to repair the mem board,and will continue to play with it. Best regards to all. Alain Nierveze 492 all?e Montesquieu 33290 Le Pian Medoc France nierveze at radio-astronomie.com www.radio-astronomie.com

12 years, 1 month

FREE: "Electronics" magazines from 1973-1975

by tom94022＠comcast.net

Steven: I'll take them, u can ship them FedX Ground using my FedEx number System Surety Group 14469 Manuella Rd Los Altos CA 94022 Account # 104208657 You can take them to a FedEx Office store and have them pack them if u want. They'll probably wind up at the Computer History Museum if they want them. Tom (650) 941-5324 > Message: 27 > Date: Mon, 2 Apr 2012 18:33:47 -0700 (PDT) > From: steven stengel <tosteve at yahoo.com> > To: cctech at classiccmp.org > Subject: FREE: "Electronics" magazines from 1973-1975 > Message-ID: > <1333416827.82454.YahooMailClassic at web110610.mail.gq1.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > About 2 dozen old "Electronics" magazines - see photos here: > > http://66.147.242.85/~oldcompu/maine/electronics1.jpg > http://66.147.242.85/~oldcompu/maine/electronics2.jpg > > You pick-up or pay shipping from 92656 So Cal.

12 years, 1 month

FREE: "Electronics" magazines from 1973-1975

by tosteve＠yahoo.com

About 2 dozen old "Electronics" magazines - see photos here: http://66.147.242.85/~oldcompu/maine/electronics1.jpg http://66.147.242.85/~oldcompu/maine/electronics2.jpg You pick-up or pay shipping from 92656 So Cal.

12 years, 1 month

Wanted: Decision Data 6606 printer

by wdonzelli＠gmail.com

I have a big old Decision Data model 6606 line printer that is rusted, busted, done and dusted. I am considering sending to the grinder, because it would be a *lot* of work getting back and running. My mind would be really put at ease if someone on the East coast had a nicer DD 6606 that they would like to part with (which, when it comes to floor standing line printers, is not too much to ask). Anyone? -- Will

12 years, 1 month

PRIME NUMBERS

by dave.g4ugm＠gmail.com

In the UK thats not what they should teach. They are suppposed to teach primes have two distinct factors, 1 and the prime. As for 1 these are both the same number its not prime. On 2 Apr 2012 07:34, "Eric Smith" <eric at brouhaha.com> wrote: Derrik Walker wrote: > > Whats frakked up, is that they still teach one is a prime to this day. I wonder how much progress Bill Gates has made on the mathematical problem he pointed out in his book, of factoring very large prime numbers.

12 years, 1 month

Re-inking plotter pens (Epson HI-80)

by jules.richardson99＠gmail.com

I acquired a little Epson HI-80 plotter the other day - for a "consumer-grade" device with a small page size it looks to be quite a nice little unit. Of course the pens are all but dried up (there's a little life left in the red and blue, enough to see that the self-test is working). So... has anyone tried adding fresh ink to these? I assume the pens themselves haven't been sold in well over 20 years. It looks like it's probably possible to open the pens up, but I assume that any replacement ink needs to be just the right consistency for it to soak into the pen tips properly but not end up all over the place. cheers Jules

12 years, 1 month

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test-drb April 2012