test-drb February 2007

test-drb@ccmp.vtda.org

208 participants
390 discussions

by jwest＠classiccmp.org

I'm kinda sorta half-way looking for some additional HP gear that is out of the area I normally look for.... HP 1340A X-Y display HP 1350A Graphics Translator I may have to get another HP rack...... ;) If anyone has a spare 1340A and/or 1350A they'd like to trade off, I'd be happy to offer up some gear for 'em. Jay

17 years, 5 months

(OT?) Can anyone web-host a few articles?

by ard＠p850ug1.demon.co.uk

As many of you know, I am a member of HPCC (Handheld and Portable Computer Club), a UK user group for HP calculators, etc. This group publishes a magazine called 'Datafile'. Anyway, I have been persuaded to write a few articles for said magazine. The current issue contains one explaining how to cure that well-known hardeneed grease problem in the Sony full-height 3.5" disk drive. I've illustrated the article with a number of photos showning the stages in dismantling said drirve. As yoy also know, I don't haev a digital camera, but the company who processed the film put scans of the photos onto a CD-ROM for me, I believe as JPEG files, about 2.5Mpixels. Although the results printed in the magazine were excellent, they were necessarily small, and both the editor and I feel it would be a good idea to make the article(s) available on the web with full-sized images. The reason I put OT? im the subject line is that said articles may not be classic _computing_. I think I'll only be writing about stuff more than 10 years old, mostly HP (but maybe the odd machine from Sharp, TI, etc). And mostly calcualtors and handheld computers (the last bit is why you might not consider it to be classic computing). Can anyone help by suggesting a site that might host said articles? If so, I'll put you in touch with the magazine editor. Thanks in advance -tony

17 years, 5 months

CTX Panoview 630 power supply pinout?

by ethan.dicks＠gmail.com

Does anyone on the list have a CTX Panoview 630 (or similar, it was sold under several names) LCD monitor that can verify the power brick pinout? The connector looks like a 6-pin mini-DIN with one pin removed for keying (so that you can't plug in a keyboard, I'd expect). I picked up two of them from the Mansfield Hamfest, sans power brick, with the expectation of being able to trace out the connectors easily. I know the unit takes +5VDC and +12VDC, but since the power just seems to go into the main board, through a couple of mini-fuses, then into some DC-DC components, it's not obvious to me which would be +12 and which would be +5, even once I trace them out from the power input connector. I've grubbed around on the 'net today a bit and only have managed to verify that these were once sold as an Elo part # ELT121C TFT (w/touchscreen), but with no specifics on the power brick. Elo lists it as obsolete and replaced by a model with an integral mains power supply, which is obviously of no help to me. Thanks for any pointers, -ethan

17 years, 5 months

Shameless Plug: Unisite offered

by kyrrin＠bluefeathertech.com

Fellow techies, A brief shameless plug: I've just posted one of my Data I/O Unisite programming systems for sale on That Auction Site. A seller search for the ID 'bftbell' will turn it up if you're interested. Thanks much. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

17 years, 5 months

Hp SCSI front load Tape drive spotted FS in Oregon

by innfoclassics＠gmail.com

The State of Oregon surplus store has a tall HP rack with a HP 7980S tape drive ( 1" front load SCSI) and a A3312A disk array mounted in it for the tag price of $50. Since it is a govt. agency assume no disk drives installed in the array cabinet. It is in Salem Oregon, The store is open 1 pm to 4 pm Tue thru Friday.

17 years, 5 months

has anyone constructed 3D models of vintage gear?

by legalize＠xmission.com

The subject pretty much says it all. I've been reading "From Whirlwind to MITRE: The R&D Story of the SAGE Air Defense Computer", which is very similar in feel to "The Rocket Team" (the story of the V2). I was thinking that it would be really cool to have a complete 3D model of the SAGE that you could move through DOOM style. You'd start with coarse texture-mapped approximations until you could model things in more detail. Maybe there are some models already out there? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 5 months

Humpty Dumpty

by jfoust＠threedee.com

At 02:42 PM 2/8/2007, Ethan Dicks wrote: >On 2/8/07, Richard <legalize at xmission.com> wrote: >>I've not heard of Planar before, so I'd like to hear about that one. > >They are still around. They now make VGA and DVI LCD panels, but at >one point, they made terminals and PCs. I have a Planar wall-mount >486 (LCD, 2.5" disk, external CD-ROM...) and couple Planar ELT-320s. Their Lake Mills, WI facility closed in 2002. It was perhaps the last USA-based LCD manufacturing plant. - John

17 years, 5 months

Service Manual/Schematics for an IBM 7861-015 modem?

by ethan.dicks＠gmail.com

Had a good day at the Mansfield Hamfest today. I now have some LCD monitors that I need to scope out power for (+5 @ 2A, +12 @ 1A), a nixie-tube panel DVM, and a couple of IBM modem frontpanels. >From googling the IBM model number (7861-015), they appear to be from a 9600bps 4-wire leased-line modem. I picked them up because they have a 20-key keypad with double-shot hex letters (0-9, A-F) that look really handy for attaching to an 1802 or similar, and a 1x16 char "british flag" VFD. What I'd really like is to get my hands on a schematic to skip the step of reverse-engineering the VFD drivers. Does anyone on the list have any docs on IBM modems at that level of detail? Thanks for any pointers, -ethan

17 years, 5 months

Preservation of correspondence

by roger.holmes＠microspot.co.uk

I've been listening in on this thread (though I skipped a few) and am wondering how you can tell whether a CD or DVD has corruption which is being corrected or whether it is pristine. If I can tell, then maybe when there is corruption I could re-record the data before it becomes unreadable. Of course I can also keep multiple copies on different sites.

17 years, 5 months

Preservation of correspondence

by aek＠bitsavers.org

>> Is everything you're 'backing up' checksummed? > > Yes. I regularly ( == when I remember!) backup my email > by throwing it all into a zip archive and then that gets > written (along with other stuff) to CD, along with an > MD5SUM file. Good for you! Few people do backups. Those that do trust that the data that was copied was done so CORRECTLY. I have to implement a digital archiving mechanism for the CHM software collection, so this is all VERY fresh in my mind right now. The trick is coming up with something that has verification down to the individual archive commit that can be tracked essentially forever.

17 years, 5 months

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test-drb February 2007