test-drb June 2011

test-drb@ccmp.vtda.org

141 participants
161 discussions

Usenet is officially dead from May 20th ?

by spedraja＠gmail.com

... or at least is what I've read this morning in 'El Pais', the main newspaper in Spain. What's about this ? -- Saludos - Greetings - Freundliche Gr??e - Salutations Sergio http://www.linkedin.com/in/sergiopedraja http://www.quora.com/Sergio-Pedraja https://www.xing.com/profile/Sergio_Pedraja ----- No crea todo lo que ve, ni crea que esta vi?ndolo todo

12 years, 11 months

Info on Amstrad 40095/A / DRMD20A12A MFM HDD

by classiccmp＠philpem.me.uk

Hi guys, Someone has just donated an old ST506 hard drive to the DiscFerret project... This time, it's an Amstrad drive, with part number 40095/A "DRMD20A12A". Thing is, I can't seem to find any information on it -- and at the very least I need to find out what the CHS settings are in order to create a DriveSpec file. Here are a couple of photos: Top of drive: http://twitgoo.com/2bnvcy / http://i52.twitgoo.com/n7yp.jpg PCB: http://twitgoo.com/2bnvdl / http://i53.twitgoo.com/2cgzc0k.jpg Major chips are: Hitachi HD63B01Y0P SanKen STA435A Hitachi HA13426 CF77143FT SSI 540-3CH S8714 32119.1.1F Hybrids: SC619 and SC628 Text at top corner of PCB near power connector: PY349C Head stepper motor is labelled: TYPE 103-4902-0320 10.5VDC 0.26A 0.9 DEG/STEP LOT NO. 05709I 6035095-1 Form factor is 3.5-inch, half-height (about the same height as a 5.25 HH MFM drive) From what I can gather, it's a 20MB MFM drive, with four heads -- there's a sticker on the top which reads: DEFECT:CYLINDER HEAD0 HEAD1 327 386 426 504 HEAD2 HEAD3 216 (The numbers are handwritten -- badly) There's a second sticker along the edge: W A R N I N G WARRANTY VOID IF THIS SHIELD BROKEN Does anyone have any idea what this thing might be? Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

12 years, 11 months

free for the cost of shipping : Apollo DN 4500 +extra's

by hp-fix＠xs4all.nl

Free for shipping or collecting a Apollo DN 4500 with network and SCSI interface, working is unknown (I never tested it, but the previous owner sayd it's in working condition) Including : keyboard, mouse(cable isolation in bad shape) and video cable. And also included about 30 tapes containing System and Mentor Graphics IC design software. The only thing I'm asking from the new owner is : he is willing to make a binary image of the tapes for Bitsavers.org I promised it to Al, but my workload and other obligations are in the way of completing this task. Everything is located in the Netherlands, but I'm willing to ship worldwide probably 2 heavy boxes. -Rik NB. It's shipping as one lot, I'm not going to part this up.

12 years, 11 months

SIX Button BA23 Front Panel

by tiggerlasv＠aim.com

>>On 01/06/2011 03:21, Jerome H. Fine wrote: >> For those of you who have heard about a mythical >> SIX BUTTON FRONT PANEL for the BA23, >> it does exist and actually works. > Mythical? I've probably seen more BA23s with a 6-button panel than > without, and both my BA23s have 6-button panels. Most of the BA23's I ran into over the years had the plain old (white) 4-button panels, and occasionally the (black) 4-button panels. Some had guards around some of the buttons to prevent accidental fat-fingering. If I needed more than 2 drives, I just soldered resistors onto the back of the 4-button panel. Granted, the extra drives were always write-enabled and ready, but how many people really make their drives read-only? I much prefer the 10-button BA123 chassis anyway. ;-) T

12 years, 11 months

Fwd: Seattle Retro-Computing Society inaugural meeting June 25th

by aek＠bitsavers.org

-------- Original Message -------- Subject: Seattle Retro-Computing Society inaugural meeting June 25th Date: Sat, 4 Jun 2011 20:16:11 -0700 (PDT) From: SRCS Admin <searetcompsoc at gmail.com> Organization: http://groups.google.com Newsgroups: alt.folklore.computers I am pleased to announce... the Seattle Retro-Computing Society's inaugural meeting, on Saturday, June 25th, 2011! Do you do any of the following with old computers near Seattle? + Use them + Collect them + Play games on them + Write programs for them + Develop new hardware for them + Help other people do any of the above If your answer was "yes," as I expect it will be if you're reading this near Seattle, then the SRCS is for you! We exist so you can show off your awesome stuff, bounce ideas off of fellow enthusiasts, and be inspired by one another's achievements, plans and aspirations. No idea is too big or too small, and we're not picky about what flavor of vintage machine you prefer! Come on down and tell us about it! The meeting is graciously hosted by the Living Computer Museum, a relatively new organization which is building a computer museum in Seattle's SODO neighborhood. There will be refreshments, presentations on various vintage topics of interest, and enough table space & power to set up anything you may want to show off! For further details, please see our page at http://srcs.nfshost.com/. Hope to see you there!

12 years, 11 months

Info on Sharp CS-4801?

by derschjo＠mail.msu.edu

Hey all -- I picked up an oddball calculator/computer -- it's labeled on the bottom as a Sharp CS-4801 "Electronic Calculating Machine." At first glance, it looks like a standard desktop 4-function printing + stat function / memory calculator, but it also has a small QWERTY keyboard that slides out from the front. The display is a 20-character alphanumeric VFD. Opening it up reveals a Z80 CPU, 32K of RAM and an EPROM, so there's clearly more than meets the eye here. Unfortunately, I can't get the machine to do anything other than normal calculator functions. I haven't yet dumped the EPROM, but I plan to later this weekend. Anyone know anything about this series? Thanks, Josh

12 years, 11 months

SIX Button BA23 Front Panel

by tiggerlasv＠aim.com

Jerome Fine wrote: > If possible, it would also be "nice" to have those 2 extra > LEDs for the floppy drives displayed on the 6 button > panel (or at least added somehow). ISTR that the RQDX3 doesn't have the drive circuitry to support the front panel LED's. Only the RQDX1 and RQDX2. T

12 years, 11 months

Ferguson BigBoard I & Microcornucopia Magazine

by elazzerini＠interfree.it

Hi at all, this email to remember my website with the hope to can to contact and to maintain alive all possible about and around this (but not only) great old board. For the Bigboard: <http://web.tiscali.it/enrico.lazzerini> http://web.tiscali.it/enrico.lazzerini <http://www.fergusonbigboard.altervista.org/> http://www.fergusonbigboard.altervista.org/ For the Magazine: http://enricolazzerini.interfree.it Regards Enrico - Pisa (ITALY)

12 years, 11 months

Reading TOPS-10 and maybe TOPS-20 9 track magtapes?

by dbetz＠xlisper.com

Does anyone on this list, preferably close to the Boston area, have the ability to read TOPS-10 9 track magtapes? I have a friend with a few tapes from which he'd like to extract the contents. Thanks, David

12 years, 11 months

SIX Button BA23 Front Panel

by bqt＠softjar.se

On 2011-06-01 10.00, Ethan Dicks<ethan.dicks at gmail.com> wrote: > On Wed, Jun 1, 2011 at 3:19 AM, Pete Turnbull<pete at dunnington.plus.com> wrote: >> > On 01/06/2011 03:21, Jerome H. Fine wrote: >>> >> >>> >> For those of you who have heard about a mythical >>> >> SIX ?BUTTON ?FRONT ?PANEL for the BA23, >>> >> it does exist and actually works. >> > >> > Mythical? ?I've probably seen more BA23s with a 6-button panel than without, >> > and both my BA23s have 6-button panels. Yeah. Nothing mythical about the 6-button panel. Glad to see that I'm not the only one thinking so. > I remember_trying_ to put two hard disks in one machine for quick > disk-to-disk copies. I have a fuzzy memory that it didn't work for > me, but I don't remember whacking either drive to the point that they > didn't work when returned to their former homes. As far as I know, the BA23 backplane distribution panel can *not* be used for two disk drives. I know there is a DEC note/article about this not working. You need the external distribution board for the RQDX3 to use two drives. If you use the BA23 backplane distribution panel with two harddisk drives, you have a high chance of corrupting both disks. (If I remember right, the write gate signal somehow goes to both disks, no matter what, which cause the disk to possibly start writing when the disk is seeking, for example. Very bad.) The BA23 backplane distribution should only be used for one harddisk, and possibly one floppy. Johnny

12 years, 11 months

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test-drb June 2011