test-drb April 2005

test-drb@ccmp.vtda.org

269 participants
730 discussions

by James＠jdfogg.com

> We do have what looks to be a reader with integral printer, > which is an interesting beastie - but it all looks rather > battered and rusty (maybe it sat outside at some point in its > life). I don't hold out much hope of it working again... These are incredibly common, most libraries will have them. The printing process is either mimeo (alcohol) or the diazo process used for blueprints (ammonia). I have only seen one that used a toner type photostat process.

19 years, 5 months

Very much On Topic: Integrated Vacuum Tubes

by pete＠dunnington.u-net.com

On Apr 21 2005, 9:06, Stan Barr wrote: > There were some very small wire ended ones made for proximity fuzes in > anti-aircraft shells. They are about the size of one of those small > neons. Someone in the USA has a stock of new ones and I wouldn't mind > getting a few to play with, but I've lost his address. > > Back in the '60s I had a little portable radio that used wire-ended > valves/tubes about half an inch diameter and an inch long. I had some of those. They were wire-wrapped onto printed circuit boards which were mounted in lightweight alloy chassis, all made at Ferranti, supposedly for or from the TSR2. -- Pete Peter Turnbull Network Manager University of York

19 years, 5 months

More Vintage Computers in the news!

by classiccmp＠vintage-computer.com

You know you've hit the big-time when: http://www.theonion.com/history/index.php?issue=4116 Enjoy! -- Erik Klein www.vintage-computer.com www.vintage-computer.com/vcforum The Vintage Computer Forum

19 years, 5 months

HP find, plus some good DEC stuff too... and CDC.. and...

by cheri-post＠web.de

Jay, it would be of great help, if somebody could scan the documents of the CDC drives. I own four of these beasts and neither don't know to configure them nor to repair them due to the lack of printsets. And I'm surely not the only one out there. Regards, Pierre "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> schrieb am 21.04.05 00:50:57: > > Got a call from my High School, they had found more "old computer junk" in a > little used closet under a stairwell. They said "come get it out", so I did, > and I was pleasantly suprised. Here's what I found... > > Four, yep... FOUR of the rare HP 12920 MUX panels.. at least two of which > have full cable sets!! These aren't the mux controller cards, this is the > large metal bracket (which has it's own circuit board) that the 12920 mux > set connects to. And the cables for these are a bi***, double hooded affairs > on one end, centronics style connectors on the other, a three cable bundle. > Anyways, this totally makes my day :) I will keep one or two, the rest are > available for trade. > > A CDC 9715 "front panel filler kit". The CDC drive (a single one anyway) > took 1/2 a 19" rack space horizontally. So this kit includes the extra > filler panel to bring it across the 19" span. Also included are a full set > of unit select plugs (look like they'd work on an RL02?). > > An Emulex SC02/SC11 disc controller. This looks to be Qbus. Dang. I have > qbus systems I'd use it on, but I'd rather have a unibus controller ;) The > board comes with some interesting things in the box. Full technical manual > on the board, plus a handfull of color brochures and specification sheets > (marketing glossy's) for all the different products that Emulex made in the > way of disk controllers and such. Then there is an envelope with a large > amount of the full line of emulex products glossy brochures/datasheets as > well. > > An odd HP "power controller". I've never seen anything quite like this. The > power controller is HP part 30311-60001. It has a lot of the standard HP > power connectors (yeeehar! Battery eliminator plugs!!), and test points on > the front for "battery test". Then there's a large bundle of power cables > that goes to a rackmount panel with separate switches for "lower memory" and > upper memory" standby and run with lights for DC status, battery status, > etc. This sure seems like it would be some kind of power management for the > 21MX M-series, but I've seen the battery backup option for the M series and > this wasn't it. Odd. > > A partially canibalized HP 2112A power supply > > A CDC PA5A1 & PA5A2 hardware maintenance manual. The pictures look very much > like the CDC 9715. > > Misc. parts from an 11/03 or maybe 11/23 front panel (the 3 white toggle > switches assembly) - bezel & circuit board > > This appears to be a 3rd party manual for DEC memory - "CMV-1000 MOS Memory > Manual" > > Then there's some manuals for various 9" monitors frequently used with old > systems - sanyo, ball (a TD12/15 service manual), ikegami or something like > that... > > I left a bunch of cannibalized 21MX power supply stuff behind, as well as > some power supply parts for a 7970 tape drive. I will be going back to get > those... as well as a pristine, apparently never installed brand new > old-style HP 19" rack. Now I have a place to mount my other 7970E and 7906 > and 7900A :) > > Lastly, some really odd stuff I left behind but will go back to get. I have > no clue what this stuff is... honestly, it looks like stuff from an old > Frankenstien laboratory in the movies. Desktop metal boxes in this mottled > black paint, with HUGE brownish/redish dials on them that appear to be some > type ceramic. Large analog meters on most of it. No brand name that I could > see but it really didn't look "home brew". I could tell is was FAR older > than the HP stuff I was looking for. Maybe when I get that stuff I can post > a few pics and people could try to guess what it is. It's very clearly not > computer related though - believe I saw a few tubes in some of them. > > Oh, I also got a voice coil with 5 heads attached to it. It's quite odd > looking - the heads don't line up. There's maybe two heads on the bottom of > the coil that are aligned "over under". Then there's a third one off to the > side. Then a glass reticule, then two heads above that that didn't line up. > Wierd. It looks like something that came off a borg arm ;) > > Regards, > > Jay West > > ______________________________________________________________ Verschicken Sie romantische, coole und witzige Bilder per SMS! Jetzt bei WEB.DE FreeMail: http://f.web.de/?mc=021193

19 years, 5 months

SMS FWD 0101 disk/floppy info?

by brad＠heeltoe.com

Hi Anyone have any info on an 8" hard drive + 8" floppy combo which appears to be an "SMS FWD 0101"? I believe this was used with a qbus system. I don't have the controller card however, just the box and a 50 pin cable :-) The floppy looks like 8" double sided. The HD is 8" (been a while since I've seen one of those). I'd love to find the mating QBUS controller card. The large card on top of the hd & floppy appears to have an 2901 and an 8085 as well as other fun chips. (I just gotta stop clicking on those blue underlined words ;-) -brad

19 years, 5 months

Need sample of CRT "mold"

by vcf＠siconic.com

If someone can mail me a sample of the "mold" I've found a place that will test it. You can mail it to: VintageTech 2442 Research Drive Livermore, California 94550 Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

19 years, 5 months

PDP8 power supply G8018

by Steven_R_Hutchins＠Raytheon.com

I am considering using two modern +5v at 25A switching power supplies to replace the +5V source ( leaving the original -5V at 2A,+15 at 2A,-15 at 2A,and +20 at 4A as original) in a PDP-8A. My intent is to increase the reliability of the system. I have had trouble with keeping the G8018's operating. I occasionally trip the breakers on startup. I am thinking bad filter Caps. Perhaps someone could give some opinions on this (Crazy) idea. Hutch

19 years, 5 months

HP 2000/Access 21MX-EEEEEEE version :>

by jwest＠classiccmp.org

Just booted it up and it runs wonderfully :) So, the IOP firmware for the E series has not only been found, but confirmed to work! It was so neat to type "HEL-A000..." on a terminal this morning. The dual E's are noticeably faster than my dual 2100 Access system, but not as much faster as I would have expected. Odd, since the processors are significantly faster, and using the high performance memory option. The basement doesn't heat up quite as much running on two E's as opposed to two 2100A/S. Also, I seem to be able to run it indefinitely without tripping a circuit breaker. Nifty! I ran in to lots of cpu problems this morning, and had to go through every one of my 21MX-E spare cpu's to get a working combination. Yikes - makes me wish I hadn't given away all my E's. At some point in the future I should probably try the M series firmware board, just to be sure that works as well. I also wound up having to scavenge some parts from my 2100 Access system to get the MXE Access system up. Bummer! Hopefully some trades will produce the necessary stuff to have both operational. Yup, I'm pondering some RJE setup between the two :) Oh, except I apparently only have one set of processor interconnect cables, thought I had two :\ Making up THOSE cables will suck. Anyways... just wanted to let folks know that the E series IOP firmware is definitely a go. The biggest problem I had was trying to figure out how to set up the FAB board. I'd really have preferred to go the FEM route, but Access is so hard-coded in the system processor side of things. Regards, Jay West

19 years, 5 months

Jupiter J12

by pete＠dunnington.u-net.com

On Apr 18 2005, 19:57, Ethan Dicks wrote: > On 4/18/05, Dave Dunfield <dave04a at dunfield.com> wrote: > > Hi Guys, > > > > I was just contacted by a guy asking if I have any info on this > > computer called "Jupiter J12": > > > > http://www.geocities.com/australianvintcomp/Jupiter/Jupiter.html > That sure looks like Qbus fingers on those boards... it would be odd > to copy DEC's proportions and not their bus logic, but that's entirely > possible. > > With a 68010 CPU, that screams "UNIX" to me (the differences between > the 68000 and 68010 make virtual memory implementation practical. That's what Cadmus (German CAD systems producer) did with their 680x0 boards; they fit in a normal QBus chassis, use standard QBus peripherals, and run UNIX. I've never owed one, but I've (briefly) used them. -- Pete Peter Turnbull Network Manager University of York

19 years, 5 months

HP find, plus some good DEC stuff too... and CDC.. and...

by jwest＠classiccmp.org

Got a call from my High School, they had found more "old computer junk" in a little used closet under a stairwell. They said "come get it out", so I did, and I was pleasantly suprised. Here's what I found... Four, yep... FOUR of the rare HP 12920 MUX panels.. at least two of which have full cable sets!! These aren't the mux controller cards, this is the large metal bracket (which has it's own circuit board) that the 12920 mux set connects to. And the cables for these are a bi***, double hooded affairs on one end, centronics style connectors on the other, a three cable bundle. Anyways, this totally makes my day :) I will keep one or two, the rest are available for trade. A CDC 9715 "front panel filler kit". The CDC drive (a single one anyway) took 1/2 a 19" rack space horizontally. So this kit includes the extra filler panel to bring it across the 19" span. Also included are a full set of unit select plugs (look like they'd work on an RL02?). An Emulex SC02/SC11 disc controller. This looks to be Qbus. Dang. I have qbus systems I'd use it on, but I'd rather have a unibus controller ;) The board comes with some interesting things in the box. Full technical manual on the board, plus a handfull of color brochures and specification sheets (marketing glossy's) for all the different products that Emulex made in the way of disk controllers and such. Then there is an envelope with a large amount of the full line of emulex products glossy brochures/datasheets as well. An odd HP "power controller". I've never seen anything quite like this. The power controller is HP part 30311-60001. It has a lot of the standard HP power connectors (yeeehar! Battery eliminator plugs!!), and test points on the front for "battery test". Then there's a large bundle of power cables that goes to a rackmount panel with separate switches for "lower memory" and upper memory" standby and run with lights for DC status, battery status, etc. This sure seems like it would be some kind of power management for the 21MX M-series, but I've seen the battery backup option for the M series and this wasn't it. Odd. A partially canibalized HP 2112A power supply A CDC PA5A1 & PA5A2 hardware maintenance manual. The pictures look very much like the CDC 9715. Misc. parts from an 11/03 or maybe 11/23 front panel (the 3 white toggle switches assembly) - bezel & circuit board This appears to be a 3rd party manual for DEC memory - "CMV-1000 MOS Memory Manual" Then there's some manuals for various 9" monitors frequently used with old systems - sanyo, ball (a TD12/15 service manual), ikegami or something like that... I left a bunch of cannibalized 21MX power supply stuff behind, as well as some power supply parts for a 7970 tape drive. I will be going back to get those... as well as a pristine, apparently never installed brand new old-style HP 19" rack. Now I have a place to mount my other 7970E and 7906 and 7900A :) Lastly, some really odd stuff I left behind but will go back to get. I have no clue what this stuff is... honestly, it looks like stuff from an old Frankenstien laboratory in the movies. Desktop metal boxes in this mottled black paint, with HUGE brownish/redish dials on them that appear to be some type ceramic. Large analog meters on most of it. No brand name that I could see but it really didn't look "home brew". I could tell is was FAR older than the HP stuff I was looking for. Maybe when I get that stuff I can post a few pics and people could try to guess what it is. It's very clearly not computer related though - believe I saw a few tubes in some of them. Oh, I also got a voice coil with 5 heads attached to it. It's quite odd looking - the heads don't line up. There's maybe two heads on the bottom of the coil that are aligned "over under". Then there's a third one off to the side. Then a glass reticule, then two heads above that that didn't line up. Wierd. It looks like something that came off a borg arm ;) Regards, Jay West

19 years, 5 months

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test-drb April 2005