test-drb January 2020

test-drb@ccmp.vtda.org

125 participants
81 discussions

by mark.tapley＠swri.org

All, next thing to go from my pile is a set of Stylewriters. 2 ea. StyleWriter (1st generation) 2 ea. Color StyleWriter 1500 1 power supply for Stylewriter (condition very iffy) 1 power supply for Color StyleWriter 1500 (condition believed to be good) 1 spare circuit board (Stylewriter I believe, not certain) 3 spare ink cartridges (StyleWriter). Caveats: All printers believed to be operational when last stored. Some paper guides missing. I think I can plug in the CSW 1500?s and check power - on, at least. I *may* be able to plug in the SW?s and check power on, but I worry about that power supply (see below). I have not done any of the above, nor tried to plug a computer in to any of them, anytime this millennium. At least one ink cartridge I think has a short which breaks printers. All ink cartridges are likely bricks by now, having been stored (climate-controlled, but ?. ) for ~2 decades, so I?m pretty reluctant to try printing with any of them. The StyleWriter power supply was worked on by someone rather ham-fisted (CoughMeCough) and is somewhat the worse for wear - structural parts rattling around inside, etc. (Is there a good name for those things? *Way* too big to be a wall-wart - wall-growth? wall-turret? wall-obstacle?) All "Free to a Good Home", shipping from Texas, USA (Zip 78254) and I?ll split shipping costs with you (as before, I want space and I don?t want to add these to landfill). Partial orders filled in the order they come in. I have checked with Operator Headgap and tried to check with the Mac rescue place in Denver, not interested in the first place and no response in the second. Respond to (preferably) mtapley(at)swri.edu<http://swri.edu>, or phone below. I?ll be travelling the next couple of days, but will try to get back to you ASAP. - Mark 210-522-6025 office 210-379-4635 cell

4 years, 11 months

Another old phart trying to clean out the house

by jfoust＠threedee.com

At 10:46 AM 1/13/2020, you wrote: >If there is anyone in the greater Chicago area (or anywhere else) who'd like to drive over and take away anything from a carton to a carload of old stuff, from docs to chips, please let me know. No inventory list, no shipping - just a walk-through and carry out. OK no inventory list, but how about pictures of piles? And "greater Chicago" is a very large area. Where are you in slightly more specific terms? - John

4 years, 11 months

Hello All - new member in the UK

by salikmrafiq＠gmail.com

I have sent the vendor of this item questions on ebay what you asked. It includes the keyboard x 2, mice x 2, CPU and monitor as well as those manuals. My offer was going to be ?350 = ?408 Vendor does not know which Solaris it is. So perhaps not familiar with Unix? It might be he inherited from a family member. Bit of a toy - only meant for a university project of mine which I did on a Sparcstation 2 to show my kids that Xbox was not the beginning of time with computers! LOL Thanks. Salik. -----Original Message----- From: Stefan Skoglund <stefan.skoglund at agj.net> Sent: 13 January 2020 03:59 To: Salik Rafiq <salikmrafiq at gmail.com> Subject: Re: Hello All - new member in the UK s?n 2020-01-12 klockan 21:12 +0000 skrev Salik Rafiq: > I have seen this one on eBay. > > https://www.ebay.co.uk/itm/Sparcstation-5/192930718968?hash=item2ceb91 > 24f8:g:VZ0AAOSwYbpc7EhK > > What do you think about the price. It seems to be booting and running > with Solaris. > > Salik. > Is it a plain SS5 (those two SS10s was upgraded a fair/very bit) ? Compared with them (the two SS10 in Germany) this one is slower, but it is in the UK and probably close to you and it isn't heavy so the whole system and the kbd will fit inside a bag so it's a nice but somewhat expensive amusement/reason (and a bit better than that) to sit on the train a few hours. It is SCA-2 equipped so it is a fair bit easier getting disks for it. Pitty, i wonder if the machine (SS5) has the builtin flex disk and the cd-rom ? The seller didn't include photo of the right side and no word about the CPU (or photos of the inside) but it boots ! Is the IDPROM replaced ??? The battery in the original one is probably toast so but less of a problem. Still that 5 is from 1995 or so and the SS10s 1993 or so but the CPUs (the machines in germany) is a little bit newer but 500 pound vs 400 euro ??? If i went and bough one of the machines in germany - the difference is so large that if i took 150 pound or so to pay for fuel, driving to them to pick up them and then home - that would even up (i'm about 9 hour by car from them.) How is the SS5 equipped (if it is a machine with internal floppy and cdrom) and with the fact that it is SCA-2 and it boots, well then it looks better. Stefan N S

4 years, 11 months

Transformer Fault in a PSU?

by robert.jarratt＠ntlworld.com

The PSU in my VAXmate failed recently and I think I have found a problem with one of the windings on the transformer not ringing when I test it with a ringing tester. The technical description of the VAXmate says that one winding is operated in flyback mode and I wonder if that has any bearing on the ringing test. Also, one of the pins appears not to be connected to anything else, so possibly a broken (melted?) wire. Can anyone help with the following questions: Does the fact that one winding is operated in flyback mode have any bearing on the ringing test? Can a transformer fail with a bad smell with no outward sign of damage? Can this transformer be replaced (see picture in blog)? - I suspect not unless I find a donor PSU. Where should I look for a possible cause of the transformer to fail (if indeed it has failed?). I have posted more details here: https://robs-old-computers.com/2020/01/12/possible-cause-of-vaxmate-h7270-ps u-failure/ Thanks Rob

4 years, 11 months

SWTPC 6800 and Percom Floppy Controller

by deramp5113＠yahoo.com

I?m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy controller. This controller goes on the SS-50 bus instead of the SS-30 bus where the SWTPC controllers installed. The standard Percom MiniDOS PROM is installed, and the other two PROM sockets have a third party extension called ?Minidisk+?. This was made by a company called Cer-Comp. These PROMs are instead of Percom?s own ?MiniDOS PlusX (MPX) PROM. I?ve got the system working, and I can use Minidisk+ to save and load files, but I know I?m missing some nuances of command parameters. I don?t have any sort of documentation for Minidisk+, so before I go figure it out by disassembling the PROMs, does anyone have any sort of documentation for Minidisk+ by Cer-Comp for the Percom LFD-400 floppy disk controller? Also, I?d like to burn the MPX PROM as an option. Does anyone have the MPX PROM or the source code for MiniDOS PlusX? Mike

4 years, 11 months

Old Nokia/alfaskop 3270 terminal

by dave.g4ugm＠gmail.com

Folks, Can any one remember how to get an AlfaSkop terminal into local setup mode> Dave Wade G4UGM & EA7KAE

4 years, 11 months

Anyone have any hardware docs on a Hyundai Super LT-3 80286 laptop?

by peter.veprek＠gmail.com

Hello, I've got a vintage Hyundai Super LT-3 80286 laptop, I just fixed the problem with CMOS battery but I'm unable to find any information about HDD settings. When I go to BIOS, there are 2 possible disk positions but I don't know which one to use and what settings I should choose. I'd like to ask you to let me know how to set this up. You also wrote in you post that you're goint to experiment with the switches which are right below the left bottom corner. If you got any news regarding these, I would appreciate it. Thank you in advance for your help. Regards, Peter Veprek

4 years, 11 months

Info / packs for Amcodyne 7110 "Arapahoe" drive?

by derschjo＠gmail.com

Hi all -- Got one of these: http://www.bitsavers.org/pdf/amcodyne/7110/Arapahoe_7110_Brochure_Nov84.pdf sans power supply and packs. I'm guessing that these packs were specific to this drive and not any sort of standard, and that tracking one down is going to require quite a bit of luck. Figured I'd start here :). Also looking for technical info (pinouts for the power connector would be a good start...) Thanks as always, Josh

4 years, 11 months

Pro-380 power supply

by paulkoning＠comcast.net

I have a Pro-380 with an H7862-C power supply. Recently the power supply input filter (where the cord plugs in) shorted out, causing melted filter guts to leak out of the case and put a big smoke cloud in the room. Fortunately I have a spare, but it's an H7862 (not -C). I'm planning to replace the failed input filter, but in the meantime: does anyone know what the difference is between the two versions? Is it just a design tweak, or does the -C have different specs (like higher current ratings)? The replacement came out of a Pro-350 component set. paul

4 years, 11 months

3M third-party replacement flex-print cables

by aek＠bitsavers.org

I started going through my cable sets and put a few up on eBay this morning.

4 years, 11 months

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test-drb January 2020