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  • ZXDS 1.3.0Hello, I am really glad I can announce one more [URL="http://zxds.raxoft.cz"]ZXDS release[/URL] on this special day. The major new feature is the lo…

    ... feature is the long-demanded ULA+ emulation, which required way more ...
    Patrik Rak Patrik Rak July 2014 Emulators
  • New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …

    ... . I've also got a ULA heatsink on the way, and ...
    Wiffleplop Wiffleplop July 2014 Hardware
  • Bypassing bits of faulty ULAs: the LOAD!Hi everybody, Recently I had a sick Spectrum sent to me. The symptoms were that the machine would run fine, except that it wouldn't load. The border…

    ... are probably thinking "Argh! The ULA has gone!". And indeed, ... . When I plug the ULA into a working machine, ... to stop us bypassing the ULA altogether? So I did. ... tape input instead of the ULA's pin (by which ... buffer enable back to the ULA pin 33 again (otherwise ...
    Spirantho Spirantho July 2014 Hardware
  • The ULA6C001E-5...Hi everybody, I have been continuing my Quest for the Holy ULA, and have today taken delivery of a ULA6C001E-5. Now, the -6 was used in Issue 3 boar…

    ... my Quest for the Holy ULA, and have today taken delivery ...
    Spirantho Spirantho August 2014 Hardware
  • Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…

    ... mount parts (except for the ULA which will be the original ...
    IanJ IanJ August 2014 Announcements
  • Question for ZX81 GurusI have an ISSUE 1 ZX81 with a 2C184E ULA. If I ever need to change it, can I use one of the newer 2C210E ULAs? If I can, are there any other mods th…

    I have an ISSUE 1 ZX81 with a 2C184E ULA. If I ever need to change it, can I use one of the newer 2C210E ULAs?

    If I can, are there any other mods that need done at the same time for it to work?
    rune rune August 2014 Hardware
  • IO Ports (Spectrum)Hi all, Working on a new Spectrum interface card I have the prototype powered up and basically working.......but I want to play with the IO addressi…

    ... they are used by the ULA and the zx printer.......so ...
    IanJ IanJ August 2014 Hardware
  • Spectrum Issue 2 - TR6 ReplacementI've just got my hands on an Issue 2 ZX Spectrum, that needed some repairs. The picture quality after doing a composite modification was pretty shodd…

    ... addresses a problem with the ULA but nothing more specific.
    retrogamemart retrogamemart August 2014 Hardware
  • Short Circuit Damage?Hey Spectrum fans, Currently trying to diagnose what is wrong with my 48K Issue 4B ZX Spectrum. The initial problem was the fact it would not boot -…

    ... message.

    Testing the ULA in another Spectrum board showed ... the ULA worked fine.

    I ...
    Tekno Venus Tekno Venus August 2014 Hardware
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... , what would happen if the ULA would have arranged the display ... performs better than the original ULA layout, at least for displaying ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • 'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…

    ... /> 2. Could I test the ULA chip in an Issue 3b ...
    blueowl0708 blueowl0708 September 2014 Hardware
  • My attempt to restore the CPU clock signalI know Winston has already got this, but I can't see any thread with details about it. Only wanted to share my (still early) results. I'm not taking…

    ... signal, filling the gaps where ULA stops it, and yet, maintaining ... in sync with the internal ULA and the CPU, without relying ...
    mcleod_ideafix mcleod_ideafix September 2014 Hardware
  • What five games that you've not played/briefly played would you want to take?I was thinking the other day about, how every so often on almost every gaming forum, you see a "What are you top ten favourite games?" style thread. …

    ... for me since I love rain in games), a house in ...
    ewgf ewgf September 2014 Chit chat
  • 48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…

    ... ; bars). I've placed the ULA, ROM and Z80 in other ...
    retrogamemart retrogamemart September 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    ... I hope means that the ULA is all okay. The board ...
    Wiggs Wiggs September 2014 Hardware
  • 48K misplaced coloursHello to everybody! Slowly recapping a otherwise working Issue 6A 48K. All new caps aroud LM1889, 7805 and DC-DC converter, which improved ripple an…

    ... . Still have to change C28 (ULA smoothing capacitor). However, there are ...
    Falco-F8L Falco-F8L September 2014 Hardware
  • Spectrum sometimes boots with graphic issuesA while ago, my Spectrum 48K (issue 3B) broke down after fiddling with a brand new joystick interface in combination with DivIDE. Today I tested the …

    ... />
    I tried to swap ULA with my otherwise broken Spectrum ...
    carlsson carlsson September 2014 Hardware
  • Wanted: ZX81 caseJust found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full worki…

    Just found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full working order.

    Cheers guys
    DEATH DEATH September 2014 Wanted
  • QL microdrive units (x2)Found two old microdrive units I ripped out of a QL many moons ago. Just the bare units, no fancy cases etc. I have NO idea if they're any use for …

    ... if they work.

    ULA 2G007E, 8344 date code on ... one, ULA 2G007E date code 8348 on ...
    DEATH DEATH September 2014 Sales
  • Issue 6 repair with a twist...(Starting with a slight grump - the forum ate my first attempt at this so this'll probably end up being a bit terse :)) I got a Issue 6 48K machine …

    ... I started wondering whether the ULA was flaky, or if there ...
    balford balford September 2014 Hardware
  • The Elder Scrolls gamesA few days back, I discovered a great new game, called [B]The Elder Scrolls III: Skyrim[/B]. Actually, I discovered it when it first came out, three …

    ... sparse), and better rain effects (Morrowind has better rain than Skyrim!), to ...
    ewgf ewgf October 2014 Chit chat
  • JHCon 2014Hello, not sure if this is the right category but JHCon 2014 will take place[B] from 28. to 30.11.[/B] at usual place - gymnasium in Jindrichuv Hrad…

    ... modes of TC2048/2068 PAL ULA
    --- add a proper Basic ...
    Factor6 Factor6 October 2014 Announcements
  • Favourite Cover Versions You Didn't Hear FirstSo, there are lots of great cover versions of songs, and you may prefer the original or the cover, but do you always prefer the version you heard fir…

    ... ]Have You Ever Seen the Rain[/I] by Creedence Clearwater Revival ...
    joefish joefish October 2014 Chit chat
  • PS3 game recommendations for a noobHowdy! Disclaimer: If you can't be bothered to read the whole post, just recommend some must-have PS3 games :) I've finally decided to enter the (a…

    ... to start?
    [*][B]Heavy Rain[/B] (looks interesting - style over ...
    Maroc's Other Projection Maroc's Other Projection October 2014 Chit chat
  • Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…

    ... tests passed, keyboard, RAM, ROM, ULA, IRQ etc.

    After ...
    Korinel Korinel October 2014 Hardware
  • 48K Issue 6A board only showing B/WI have a 48K Issue 6A board here, which only shows a B/W composite video signal on both, the modified RF-out, but also on the expansion bus (using my…

    ... diagnostics tool). I suspected the ULA, as the installed version 5C112E ...
    schombi schombi November 2014 Hardware
  • Spectrum preservation/clean up questions.I&#8217;m sorting out my 5 Spectrums trying to make them look a bit better, and to package them up how they should be, and to get them to be reliable…

    ... ; SCART cables wear out the ULA?

    [6] Feet, I ...
    Korinel Korinel November 2014 Hardware
  • Issue 1 oddityHello to everybody, I have a very first under my hands - a broken Issue 1. Apart from the classic "broken lower RAM" syndrome which will be easily t…

    ... of blue.

    5C102 ULA works. U,V and Y ...
    Falco-F8L Falco-F8L November 2014 Hardware
  • Harlequin keyboards / housingsI have about 20 or maybe more ZX Spectrum 48K's, which I'm planning to sell in separate parts (refurbished boards, ULA's and cases). Now I'm interes…

    ... in separate parts (refurbished boards, ULA's and cases).

    bverstee bverstee November 2014 Sales
  • What is the Speccy? exUSSR edition.In exUSSR 8 years ago have been solved all these issues, and developed a General opinion. All who do not agree with this opinion, are incompetent peo…

    ... not exist, because to replicate ULA too expensive.

    6 ...
    Black_Cat Black_Cat November 2014 Hardware
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Latest Posts

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    Renegade on April 21
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    John Elliott on April 21
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