test-drb May 2005

test-drb@ccmp.vtda.org

248 participants
723 discussions

ACT Apricot keyboards, or infra-red japes

by witchy＠binarydinosaurs.co.uk

Hi folks, Recently I've picked up the bits of the infra-red Apricot keyboard that Jules investigated at my place and left in bits all over one of my sofas :) It's a membrane activated by springs and quite a lot of the keys don't register with the host machine which in wired keyboards points to a dodgy membrane.....however, in this case there might also be some issue with the infra-red emitters, so short of dragging a digital video camera down to my southern home is there a way of watching the infra-red emitters to see if they're working OK? I know CCD based video cameras can see infra-red...... Apologies in advance if this message appears garbled, I'm using an awfully off-topic Mac G4 with OSX 10.2 and I'm not used to its settings yet :) The machine was going to be dumped yesterday because 'it doesn't work'..........oh yes it does :D Cheers, a

21 years

ACT Apricot keyboards, or infra-red japes

by leeedavison＠yahoo.co.uk

> Surely there's one encoder and IR transmitter for the > entire keyboard (there may be several IR LEDs, but > normally they're wired in series and send the same > information). In which case if _any_ keys work, then > it's very unlikely the problem is with the IR transmitter. Not true. IR formats where the energy density per bit type differs can fail on specific codes due to the IR LED supply capacitor failing. E.g. in the Sony SIRC protocol a 1 bit is transmitted as 1.2ms of carrier and .6ms gap whereas a 0 bit is .6ms of carrier and .6ms gap. In this case any command that has a sequence of two or more 1s may fail where a code with only single 1s way work. Not very likely I'll admit but it can happen. The easy way to diagnose this is if it works with brand new cells but cells a couple of weeks old don't work well. Lee. . ___________________________________________________________ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com

21 years

Interesting Epson memory card

by vcf＠siconic.com

Has anyone ever seen one of these? http://www.siconic.com/computers/epson/ It's a credit card sized memory device made by Epson. Allegedly stored anywhere from 16 - 128K per card. Used some sort of backup battery for the memory. I don't believe this was flash. Apparently Epson OEM'd them to various companies for use in various devices, presumably including laptops. Can anyone identify exactly what this card is and what might be able to read from it? 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 ]

21 years

Inventory for handling scanned documents (was: Better indexing on bitsavers)

by aek＠bitsavers.org

> what do you do with "fold out" pages within documents The IS520 will scan fold out pages directly in most cases. For the REALLY long pages, I scan them in overlapping sections and append a letter to the page number. The first piece is the left side of the page, so as you page through the document the overlapping sections scan across the long sheet left to right. Variable width documents add another level to the scan directory A convention I came up with a long time ago was to add '_number' to the file name. Changing scanning size is fairly easy between sections (changing the scan width, normally) in the program. So, if you scan a doc that has an 11x17 page, you'll end up with the following directories foo_f foo_b foo_f_1l (the 'l' is a marker that let's me know it's a long page) foo_b_1l foo_f_2 foo_b_2 ..and on an on for all the alternating page sizes Then I have to flip the filters around for all the differing page sizes and orientations Eventually, this produces sequentially numbered tiffs of differing sizes which are then 'tumbled' ..also forgot that I rotate 8x11 pages to 11x8 if the page has horizontal data on it. DEC tech manuals are the worst.. they will often have a single 11x17 page so I'll end up with dozens of directories that need to be manipulated.

21 years

Kaypro II system disk?

by ajp166＠bellatlantic.net

> >Subject: Re: Kaypro II system disk? >From: "Doc Shipley" <doc at mdrconsult.com> >Sent: Tuesday, May 17, 2005 4:20 AM > > >> Apropos to the discussion of Don Maslin's archives, I need a bootable >> disk image for a Kaypro II with the Advent TurboROM (Plu*Perfect Systems) >> The Advent hard disk formatter would be a plus, but right now I'd be happy >> just to boot CP/M on the thing. >> >> FWIW, it's got one original SSDD floppy drive, a Rodime 252F hard disk >> and an Advent .5MB RAM drive. It's the v3.0 TurboROM. >> >> Doc Doc did you ever get a disk? What drive(s) does that system have installed? I have A kaypro 4/84 I use with with Advent Turborom and Ramdisk however I have mine set up with some 3.5" drives. Mine doesn't have a host controller so no hard disk. I'd need to pull out one drive to set up the right drive to make a boot disk. I modded it years ago to improve functionality rather than preserve it as manufactured mostly as it was already not original. REGARDING ARCHIVEGING: I was/am trying to get away from the multitude of incompatable 5.25" formats. By installing the 3.5" drives with Turborom that allowed me to have only one media (3.5") and at most three formats on that media (781k CP/M, 720k CP/M, 720K dos-PC) which is my sanity set that all my machines can do directly at the media level and programtically using applications. Allison

21 years

2 UPS/Alarm batteries available

by Saquinn624＠aol.com

If anyone in the Seattle area needs 2 12V 7Ah alarm/UPS type lead acid batteries (used, charged, still hold it) they are available.

21 years

Tektronix, TI and Sony gear available in Kansas City

by mamcfadden＠cmh.edu

Originally sent from my home account I have the following classic computer gear available. Tektronix 4205 missing keyboard Tektronix 4052 missing the cover, somebody disposed of the cover before I got it. Tektronix 4209 + keyboard, big honker Tektronix 604 monitor Tektronix 632 monitor Tektronix 650-1 Matrix Monitor Sony Series 35 Model 10 with 2 internal floppy drives I seem to remember that this can run CP/M. Texas Instruments System 1100 gray tower CPU with external disk drives I'm cleaning the garage and this was on top of the piles, more later. Make me an offer Mike m a m c f a d d e n at c m h dot e d u

21 years

older semiconductor manuals available in Kansas City

by mamcfadden＠cmh.edu

Originally sent from my home account and I think they didn't get through > Fairchild Semiconductor > > 1. Opto electronics handbook Feb 1973 > 2. TTL data book June 1972 > 3. Discrete Products databook July 1973 > 4. The Linear Integrated Circuits Data Catalog Feb 1973 > 5. MOS/CCD data book 1975 > 6. Condensed Catalog LSI microcomputers memories CCD May 1978 > 7. Optimos Sep 1972 > 8. TTL Applications Handbook August 1973 > 9. Optoelectronics data book 1978 > 10. FAST (Fairchild Advanced Schottky TTL) 1980 > 11. TTL Databook 1978 > 12. Hybrid Databook 1978 > > Signetics > 1. Full Product Line Reference Oct 1979 > 2. Military Product Reference Guide May 1979 > 3. Logic - TTL Specifications, military Summary 1978 > 4. Analog Specifications, military summary 1979 > 5. Bipolar & MOS memory Jan1979 > 6. Analog specifications, applications, military summary Aug 1977 > > Siemens > 1. Zener Diode Reference Guide > > EEM 86 87 > Volume W Mike m a m c f a d d e n at c m h dot e d u

21 years

dec equipment available in Kansas City

by mamcfadden＠cmh.edu

Originally sent from my home account and I think they didn't get through running when shutdown 5 years ago alpha server 2100 monitor VRT19-HA tape drive TS05 monitor VR297-DA also several dec terminals make me an offer Mike m a m c f a d d e n a t c m h d o t e d u

21 years

Better indexing on bitsavers

by dwight.elvey＠amd.com

>From: "der Mouse" <mouse at rodents.montreal.qc.ca> ---snip--- > >Those (OCRed plain text and PDF files) are not the only options. > Hi Of course, I have a better option. I have some of the actual ASCII source text for a few of the manuals used in the Polymorphics systems. I lack pictures and diagrams but at least there are not OCR errors. I guess this isn't always available for everything :( Dwight

21 years

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test-drb May 2005