test-drb

test-drb@ccmp.vtda.org

101090 discussions

by hp-fix＠xs4all.nl

I've a spare 98032A but without the right cable. If interested contact me off-list. -Rik -----Oorspronkelijk bericht----- Van: "Jason T" <silent700 at gmail.com> Verzonden: ?16-?8-?2014 01:23 Aan: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Onderwerp: Re: Disk for HP 9825B On Fri, Aug 15, 2014 at 4:07 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote: > IIRC the 98217 is for the 9885 drive only, whcih is conencted by the > 98032 parallel interface. As an aside, the communcations protocol for the > 9885 is not docuemtned in any maula that I've seen, I think it's possible > to deduce it from the publised routines in the HP9000/200 Pascal > technical manuals, but... Well this is slightly embarassing....I knew I had some sort of non-HPIB HP floppy drive downstairs. I just went to search for it and...it's a 9885. So, in theory, if I got the parallel interface (a few for $50 on ebay now) and the 98217, I'd have a complete system. That is, if the drive works and I found the (also rare) formatter tape. It would see it would be better to hold out for the HPIB-enabled 98228 ROM, or as Glen says above, maybe someone will clone it. Fortunately this is only a hobby and there are plenty of other projects to attack. This one can wait :) -j

12 years

P112 kits available

by dgriffi＠cs.csubak.edu

I have 85 P112 boards pre-populated with surface-mount parts, but no parts bags. If I can pre-sell just seven kits, I can order enough bags to make forty kits. Eight more than that should be enough to fully fund this project for the rest of the boards I have on hand. This will probably be the last time I do a run of P112 kits, so get them while they last. P112 kits may be purchased from http://661.org/p112 by using the handy and secure Paypal purchase button. If you'd rather not use Paypal, email me at dave at 661.org and we'll work something out. Price is $190 for inside the US and $210 for outside the US. As before, Terry Gulczynski is available for assembly services and expansion boards. His page is linked >from mine. Kits should ship approximately two weeks after ordering to account for the fact I need to order the parts bags. -- David Griffith dgriffi at cs.csubak.edu

12 years

Disk for HP 9825B

by silent700＠gmail.com

I have a lovely HP 9825B desktop "calc-puter," the "T" version which includes a number of ROMs that would have come on a cartridge in the earlier models. There are a number of ROM carts and interfaces on ebay for the 9825s, among them the "98217A Flexible Disk Drive" module and the 98034A HPIB interface. My question is: is the latter interface, along with the General and Extended I/O ROMs already built into the 9825B, sufficient to talk to HPIB floppy drives? Or do I need the 98217A, or some other ROM, to add the disk routines to HPL? The 98217A says it's specifically for the 9885M 8" disk drive. I don't know if it has other applications or not. I don't have a 9885M or the interface module that would be required. Thanks for any clues... -j

12 years

Where to Get "Professional" Packing Done for Shipping a Vintage Computer?

by bobvines00＠gmail.com

Where do you guys & ladies recommend taking a minicomputer to be professionally packed for shipping? I have a Data General Eclipse S/130 that I need to ship about half way across the US, but I need to get it professionally packed to avoid shipping damage. I plan on shipping the front panel, the boards, and the chassis (with PSU in it) as separate packages. I'd like to find a place that can use the "foam in place" around the wrapped components in the inner box and/or around the inner box. There is no terminal/monitor. How do you recommend packing the minicomputer to minimize the chances of any damage during shipping? The computer is free, so all funds can go towards the professional packaging and shipping. Who do you recommend? If it matters, I'm in north central Florida. Thanks, Bob

12 years

Gravis for mac - that dammed programmable box

by alexandre.tabajara＠gmail.com

Dear friends In my never ending quest for a joystick for my Apple computers, I got a Gravis joystick with a strange din connector on it. Now I know I need some "gravis programmable box sbrubbles sbrubbles something" to connect it to, and so to the computer Does anyone has any refferences about it? I can clone the box if I have at least the pinout of that connector. And of course, I'm open to offers of the original box Thanks, Alexandre (still dreaming with an original apple joystick, and an ANKO one) :oP

12 years

Where to Get "Professional" Packing Done for Shipping a Vintage Computer?

by mtapley＠swri.edu

Bob, I had good luck with a Forward Air pallet last year. At Lowe?s, I bought cheap nylon straps with tensioner buckles and some bubble-wrap, and some stretch wrap. I brought a couple of old cardboard boxes to cut up into pieces to pad any contacting parts. I put all of the equipment on a pallet at the Forward Air depot (they were kind enough to let me work off in a corner for an hour or two). Here?s the process: 1) put straps under pallet (actually through, being sure to include the structural beams of the pallet) 2) pile big gear on pallet, in a vaguely pyramidal shape - cardboard ?padding? where they will be pulled together by straps or rest on one another 3) bubble-wrap small pieces and stretch-wrap them to big pieces 4) connect straps over top, more cardboard padding where each strap turns a corner 5) tighten straps until they are about middle ?A" when plucked 6) run laps with the stretch-wrap until the pile is coccooned to be certain no cables, etc. stick out or fall off. Ethan was the recipient, he should chime in for how well it survived. It looked OK when it left. *Some* day soon I need to do this again?. sigh. - Mark On Aug 15, 2014, at 3:27 AM, Bob wrote: > Where do you guys & ladies recommend taking a minicomputer to be > professionally packed for shipping? I have a Data General Eclipse > S/130 that I need to ship about half way across the US, but I need to > get it professionally packed to avoid shipping damage. I plan on > shipping the front panel, the boards, and the chassis (with PSU in it) > as separate packages. I'd like to find a place that can use the "foam > in place" around the wrapped components in the inner box and/or around > the inner box. There is no terminal/monitor. > > How do you recommend packing the minicomputer to minimize the chances > of any damage during shipping? The computer is free, so all funds can > go towards the professional packaging and shipping. Who do you > recommend? If it matters, I'm in north central Florida. > > > Thanks, > > Bob

12 years

Looking for 11/05 front-panel microswitch

by derschjo＠gmail.com

A PDP-11/05 in need of some help arrived on my doorstep yesterday. Amongst its other problems (*) the power/panel lock microswitch has been broken beyond all repair and it's kind of an oddball thing -- anyone happen to have one going spare (or know what the equivalent might be?). Someone did a rather ugly kluge to work around it (it's just hotwired in an always-ON configuration with a really ugly jumper wire), and I'd like to get it operating normally again. It's marked as DEC P/N 12-10982 (REV. B). Thanks in advance, Josh (*) It's been dropped (or had something dropped on it), the frame is bent as a result, which I've mostly undone. The power supply tests out good (a small amount of ripple but within tolerances if the service manual is to be trusted) and it shows signs of life (Load Addr works about 50% of the time), however it's not doing much. The M7261 board has "BAD?" penciled in so someone else's been over this machine before. I sense a lot of debugging in my future.

12 years

Commodore (Philips) 1084 Color Monitor shop notes

by drlegendre＠gmail.com

My best Commodore monitor, the 1084, went belly-up on me today. It's been showing sings of trouble for quite a while, but this time it finally failed over. Nothing worse than an intermittent.. Symptom was a little non-intuitive. The video would go out, randomly, and all at once - like flipping a light switch. But when it would return, it returned more slowly - it faded in, as if the CRT heater were warming-up. Now, if the heater were losing power, why wouldn't it fade +out+ as well? But I checked, and the heater was definitely off - no glow, no voltage at the heater pins 9 & 10. Anyway, it turns out that this is one of those sets that draws its heater supply from a second winding on the HV flyback transformer. After some inspection of the board, I found that one of the flyback's soldered mounting pins had cracked at the joint, causing an intermittent connection. This was the cause of both symptoms - a quick cut-out of the video when the HV disappeared, and the slower fade-in as the connection re-made and the heater warmup lagged the HV rise.

12 years

Looking for 11/05 front-panel microswitch

by cube1＠charter.net

Try cvrmach at gmail.com. He has some 11/05 stuff he is likely willing to sell at reasonable prices. I did some diagnostic work on some 11/05 boards a couple of years ago. Suggest you refer to my name (Jay) in your message. Runs a machine shop - not a collector. Name is Clarance Raalte (not sure of spelling - on tablet right now) Josh Dersch <derschjo at gmail.com> wrote: >A PDP-11/05 in need of some help arrived on my doorstep yesterday. >Amongst its other problems (*) the power/panel lock microswitch has been >broken beyond all repair and it's kind of an oddball thing -- anyone >happen to have one going spare (or know what the equivalent might be?). >Someone did a rather ugly kluge to work around it (it's just hotwired in >an always-ON configuration with a really ugly jumper wire), and I'd like >to get it operating normally again. > >It's marked as DEC P/N 12-10982 (REV. B). > >Thanks in advance, >Josh > >(*) It's been dropped (or had something dropped on it), the frame is >bent as a result, which I've mostly undone. The power supply tests out >good (a small amount of ripple but within tolerances if the service >manual is to be trusted) and it shows signs of life (Load Addr works >about 50% of the time), however it's not doing much. The M7261 board >has "BAD?" penciled in so someone else's been over this machine before. >I sense a lot of debugging in my future.

12 years

One of my Sun 5c has unusual keys...

by sales＠elecplus.com

Pics are here: https://plus.google.com/photos/106111250846948401252/albums/6047430172859922 513?banner=pwa Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone 830-792-3404 fax sales at elecplus.com AOL IM elcpls

12 years

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb