test-drb

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101090 discussions

Assorted items in Canterbury, UK, part 1

by ats＠offog.org

Hi all, I'm going to be moving house next month, so I've been slimming down my collection a bit -- here's the first batch. If you'd like to give any of it a home, let me know; offers from 0p and up accepted. I'm mostly just after the space back, although if anyone'd like to swap me a Commodore 1541 or two... This is located in Canterbury, Kent, UK. I'd prefer local collection or delivery. I'm not going to be able to make it to VCF-UK (:(), but if you know someone else from the south-east who's going, I could deliver bits to them. A box of assorted PET-related items (but no PETs), including: - A few IEEE-488 cables, both 488-to-488 and PET-to-488 - Internal PET serial board that appears to piggyback on a ROM socket - Small Systems Engineering B200 488-to-serial interface (boxed) - Small Systems Engineering B300 488-to-serial interface (unboxed, dusty) - User-port-attached 2716 EPROM programmer - Mutek Sprinter 64K printer buffer - A stack of assorted manuals and other paperwork, including manuals for most of the bits above and PET schematics - Commodore "Anatomy of a Microcomputer" poster (PET quick reference) RM 480Z manuals: - Link 480Z User's Guide - Link 480Z Information File - Extended Basic v5 - Extended Basic v5/6 A Signetics Instructor 50, with manuals, PSU and training tape. This is a rather neat Signetics 2650 development kit. Original ACT Apricot PC, with keyboard, the world's cutest monitor, and some documentation. This is an 8086 non-PC-compatible MS-DOS machine, with early 3.5" drives. New-in-box Philips Z80 computer boards. The outer box is labelled 8213 170 26550 Type VM 5020 -- so is this half of a P5020? - 8213 170 25810 Type VM 5022 - motherboard with Z80 and Z80CTC (This has slots for various other boards to plug into, including the two below, and RAM and graphics boards which I don't have) - 8213 170 25840 Type VM 5023 - disk controller board with MMB8877A and Z80DMA - 8213 170 27160 Type VM 6500/C - modem - 8213 170 27601 Speaker Radio Shack "Science Fair Digital Computer Kit". This is really just a load of multiway switches and some creative manual-writing -- but aside from the box being tatty, it appears to be complete. I have separated the original batteries (which hadn't leaked!). The keyboard from a Tatung VT-4100 terminal. This has been rewired as a keyboard for a ZX Spectrum at some point, so it's cosmetically OK but there's no PCB inside, just the keyswitches. Compaq dual Pentium Pro desktop PC. I have more bits elsewhere (mostly newer Sun/SGI/PC stuff); I'll post another lot once it's sorted out... Thanks, -- Adam Sampson <ats at offog.org> <http://offog.org/>

15 years, 11 months

Anyone off to VCF-UK?

by wdonzelli＠gmail.com

> I think time will tell whether this is a worthwhile event or not, > ultimately, I think if technical people want to attend then it will be a > technical event, if they stay away it won't be. As this is the first such in > the UK I think we should give it a chance and take the opportunity to > influence the shape of future events. I would encourage all our UK and European members to give this show a chance. Go. You will have fun. Go to any VCF you can. Go to Sellam's original VCF, when he gets it going again. Go to the MARCH VCFEast, so you can pick a fight with me. Go to VCF Midwest ot VCF Europe. We, as a community, still need to work on PR. There seem to be some assholes that have/had...issues...with the Museum folk in question, and now have an axe to grind (really, who did not see this coming?), but they can be ignored, and fun will be had by all attending. I wish I could be there, but I have more machines to rescue. -- Will

15 years, 11 months

Anti-glare filter material for old CRTs?

by derschjo＠mail.msu.edu

Hi all -- I have an Apple III green-screen monitor here which is pristine except for a big gash in the anti-glare material (some sort of fine mesh) covering the front of the CRT. I'd like to replace it, but I'm not entirely sure what it is that I'm looking for... anyone done this before? Thanks as always... Josh

15 years, 11 months

Looking for DEC BA11-A chassis (PDP 11/44 or 11/24) rail sets

by paulp1＠gmail.com

If someone knows where to find these, I'd like to buy a couple. Thanks, Paul

15 years, 11 months

Today's Google Doodle

by ploopster＠gmail.com

In honor of the 30th birthday of Pac Man, today's Google Doodle is a playable Pac Man game in the shape of the word "Google". http://www.google.com/ Peace... Sridhar

15 years, 11 months

RD53 Restoration

by ard＠p850ug1.demon.co.uk

> > > Yes "blipping" the coil with a 9V battery moves the heads. When the > > drive > > > was powered on I also measured the voltage by attaching a probe to > > each end > > > of the coil cable, in that case I measured about 1.3V only. So I am > > guessing > > > the coil is OK. Next step is to swap the boards back again. > > > > And then fix the real fault :-) > > > Indeed, if only I knew what it was! As we all well know, funding the fault is often a lot harder than repairing it... Do the schematics for the RD53 exist on the web? I've not looked. Or am I going to have to take one of mine apart and work out how it should work.. This is going to sound silly, but do you have one of those DEC mounting skids fitted? I had problems with an RD53 that wouldn't work if the skid was on. Turns out some component leads were shorting to the ground plate on the skid. A piee of cardboard cured that :-) > The problem for me is how to diagnose this. I am pretty sure the motor is up > to speed. However one thing that does seem slightly odd is that it starts to > spin the disk down quite soon after power up. Previously with the old Is it possible it doesn;t think the motor is properly up to speed? I wonder how it senses that? if it thinks there's a problem with the motor, it will spin down fairly quickly. -tony

15 years, 11 months

Straight 8 for sale

by root＠parse.com

I have (ironically) acquired a straight 8; much as I would like to keep it and restore it, I no longer have the equipment or spares to do so. The website "www.pdp12.org" contains the pictures and inventory. I will be accepting offers until the end of Friday, June 11th, 2010 (23:59 EDT). All pieces will go as one lot. Winner, if any, will be notified by the next Monday. This unit is partially disassembled (and will be shipped that way; boxed), but it looks like most of the parts are there. I have been told that it is missing cards; I have posted a best-efforts card inventory which should allow you to make a determination on how many (if any) cards are missing. I am available to answer any questions you may have. Shipping is to be arranged by you; location is Kanata, ON/Canada. I will have the two cabinets wrapped and protected with styrofoam, and all other components will be boxed and ready for the shipper to put in a palette and plastic wrap (there will only be three or so boxes, so this will take almost no time). CTS is recommended (www.moveit.com). Cheers, -RK -- Robert Krten

15 years, 11 months

Usenet's home shuts down today • The Register

by woyciesjes＠sbcglobal.net

http://www.theregister.co.uk/2010/05/20/usenet_duke_server/ -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "From there to here, From here to there, Funny things are everywhere." --- Dr. Seuss

15 years, 11 months

? testing Apple ProFile

by martin.kaeser＠auge.de

The ProFile (5 MB) spent the last years in storage. What should i do before starting the self test? The ProFile was used on either a LISA or an Apple III or an Apple II. I'd hate to test it on, say, a LISA and accidentally wipe out Apple II or III data. Is there a safe way to find out about the content? Martin K?ser

15 years, 11 months

Anyone off to VCF-UK?

by mtapley＠swri.edu

At 23:07 -0500 5/15/10, Fred wrote: >Could somebody please give Tony a ride to it? > >Tony, >GO! Seconded. Most useful post I've seen in weeks. Where do I send contributions? Assuming we can make this a zero-sum game (go vs. not go) for Tony's finances, I'd like to do that. -- - 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.

15 years, 11 months

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