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    Possible dream job for someone in this forum...

    In spite of the title, this certainly isn't spam! The DWP are after an old computer expert to manage a sensitive modernisation program, They have many ancient machines they have to keep going, as they've tried massive updates in the past & come unstuck bbc has this to say...
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    HP 7900 / 7905 / 7906 disc cartridge compatability

    Dear all Does anyone know if it's possible to use or even put a 7900 disk cartridge into a 7906 drive? I know that the 7900 disk is formatted at 24 sectors, and the 7906 at 48, but beyond that I have no idea. Even physical compatability would be useful to test the basic mechanics & function...
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    Somewhat off topic, but if you want to make a 1920's VDU this might be for you!

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    old Wang system big BIN but.....

    Nowt to do with me & I've just about run out of garage.... http://www.ebay.co.uk/itm/220969176259?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1363
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    8284A suitable to drive a 6502?

    opto isolators are sometimes (but not always) a bit slow. easiest composite video... get a couple of e.g. 2k7 resistors one to 5V the other to ground to get a 2.5V middle (that'll change but don't worry) feed the positive going Hsync pulses into (a spare inverter + a diode pointing in to it)...
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    Replacement for floppy drives - Anyone tried one?

    http://www.allyda.com/products/?index-1.html Apparently available in several flavours 720K & 1.44M
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    Tony Sale - engineer who led rebuild of Colossus, has died aged 80.

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    these look like they're suitable for S100

    hello there, there are (quite) a few of these up on ebay at the moment http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=290130726142&ssPageName=STRK:MEWAX:IT They look like they would do for S100. Nothing to do with me, but I bought some stuff from him recently & it all arrived ok. I may...
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    Sun 100

    I was talking to a chap I know whose an avid collector of "just about anything interesting". However he has the same problem as me (and many of us) in that he's fast running out of space. Anyway he has a Sun 1 (or model 100) that he's looking for "sensible" offers on. It's probably older than...
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    Silica Gel?

    Hello there, just scored 5 boxes of wide fanfold paper on freecycle. I wish to store it in my shed wrapped in polythene bags & just to make sure, I was considering adding a bag of silica gel. I've been looking at silica gel sachet prices & they vary wildly, but something surprised me, Pets @...
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    The story of the faulty PC capacitors in 2002

    "The Grauniad" * newspaper is running a story... May be of interest. http://www.guardian.co.uk/technology/blog/2010/jun/29/dell-problems-capacitors * Actually "The Guardian" But known to it's regular readers as "The Grauniad" because of the large number of misprints. It's actually a quality...
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    f/s on epay uk eprom programmer £20 BIN

    Nothing to do with me, but.... Item number:160448306995, looks like it handles many of the eproms/eeproms we're likely to need, and it's vintage in it's own right!
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    VCF-UK 19th & 20th June 2010 Bletchley Park

    I haven't got a stand, I've only just about started to get my stuff organised. There's still a lot needs fixing, or at least taking up slowly, particularly amongst the more interesting items. If I'd known about it sooner I might have had a chance to get something together. I'm going on the...
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    Radius of track 0

    Hello there, After having a good look through the TM100 TM65 5.25" and Calcomp 140 8" floppy tech manuals, I can find plenty of references to track spacing & width, but no reference to the radius of track 0. My thoughts being that if one day all the oxide falls off my alignment disks, I can...
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    VCF-UK 19th & 20th June 2010 Bletchley Park

    AAAARRRGGHHH only 5 weeks away & I'm in total chaos, If I'd heard about it sooner I might have pushed a bit & got some bits together to exhibit. I've just got hold of some decent cupboards, made up a large central table & have been sorting the contents of the rack that ran down the middle of my...
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    Wanted mid 70's computer to appear in film- Bank scene

    In 1976 our local bank had a single asr-33 teletype on a (unsecured!) leased line to head office. At a similar time we were using asr-33s in conjunction with metal cased VDUs (terminals) to access a remote minicomputer. If it needs to be seen working, both have problems, in that an asr-33...
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    dump find....

    COCO II as retrieved. It'll need to dry out a bit before switching on! All the peripherals are still plugged together, only thing that appears to be missing is the lid off the printer. I'd no idea that glidepads existed in 1983.
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    Death of Henry Roberts...

    http://news.bbc.co.uk/1/hi/technology/8600493.stm Hopefully the picture as I saw it, with the altair cut off the bottom, will have been corrected by the time most of you read this. OOPS! The youth of today!
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    pig sick!

    I've just won a really nice Cosmac System IV S100 machine on ebay, the seller later listed the 8" floppies which go with it (which is actually a rebadged Icom intelligent drive.) I'm pig sick because I made a point of putting an early bid in on this (up to my spending limit) to say "I haven't...
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    IBM PC/RT (6150) on ebay uk

    Item number:170459562205 5 days left, Nothing to do with me, pickup only in southern scotland.