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<1…28293031323334>
  • Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…

    ... main ROM, not floating bus (ULA/FFh), of a mirror of ...
    mcleod_ideafix mcleod_ideafix June 2011 Emulators
  • +2 Grey lead for CUB monitor wantedCan anyone here make this lead for me? (will obviously pay costs/parts etc) The TTL RGB input on the CUB is wired thus; -------BLUE------- GREEN-…

    ... etc)

    The TTL RGB input on the CUB is ...
    Macc Macc June 2011 Hardware
  • Spectrum+ fault - lines on boot screen, freezesThe ZX Spectrum+ I bought in the car boot has a fault. When you boot it, it's displaying the Copyright screen, but each character position has a vert…

    ... I don't think the ULA had any reason to be ... it just be that the ULA isn't suitable for it ...
    Muzer Muzer June 2011 Hardware
  • ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …

    ... Chris Smith "The ZX Spectrum ULA: how to design a microcomputer ...
    adorigatti adorigatti July 2011 Hardware
  • +2/+3 Sync problem on Commodore 1084sI have a strange issue, I got an RGB monitor cable from ebay for the +2/+3 to the Commodore 1084s (d-sub socket). It works fine on my Spectrum+ 128k …

    ... strange issue, I got an RGB monitor cable from ebay for ...
    RobeeeJay RobeeeJay July 2011 Hardware
  • Wanted: Spectrum 128KHey there, new here and new to the Speccy in general. I've always had just a passing interest in the Speccy until recently, and now I'm looking to ge…

    ... it's small and has RGB, which I can use with ...
    ApolloBoy ApolloBoy August 2011 Wanted
  • Spectrum 128k+ Toastrack lower Beeper level?Does anyone know the easiest way of matching the AY and beeper levels? I'm guessing perhaps the easiest thing to do is lower the beeper line rather t…

    ... beeper comes out of the ULA and maybe drop the level ... the pin outs of the ULA for the 128k+ anywhere? No ... which pin out of the ULA the beeper comes from and ...
    RobeeeJay RobeeeJay August 2011 Hardware
  • Sinclair Vision-QL monitorOr other black RGB/TTL monitor that can show QLs 512x256, somewhere downtown Europe.

    Or other black RGB/TTL monitor that can show QLs 512x256, somewhere downtown Europe.
    tstih tstih August 2011 Wanted
  • A +3, bags of 3" disks and wanting to run snapshots!My nostalgic speccy journey took a massive leap recently. I fished out my long lost +3 from storage. Pimped her out with some +3e roms (thanx to Keit…

    ... pile of cf2' disks, an rgb scart lead, new tape audio ...
    ElectroBlaster ElectroBlaster August 2011 Games
  • ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …

    ... described in "The ZX Spectrum ULA: how to design a ... 7MHz, 14MHz (experimental). The original ULA contention algorithm is always applied ... (PAL => PAL ULA, NTSC => NTSC ULA)
    - VGA 50Hz ... 50Hz => PAL ULA, VGA 60HZ => NTSC ULA)

    ...
    adorigatti adorigatti August 2011 Hardware
  • Commodore 64 - First time trying - REVIEW & Pictures!Right, so the 2nd hand shop was selling this Commodore and accessories. So I decided to buy it, as I've never had a Commodore and this is my first ti…

    ... for the Commodore via its RGB(?) port and there is another ... /> I didn't have the RGB cable, so I couldn't ...
    Hedegaard Hedegaard August 2011 Sinclair Miscellaneous
  • try to fix issue 4 board problemHi I try to fix speccy 48. All voltages are in place, ula 100% ok, cutted +5v from ic25 so far no luck. What next? ROM or upper memory? wojtek (i…

    ... . All voltages are in place, ula 100% ok, cutted +5v from ...
    cyborg50 cyborg50 August 2011 Hardware
  • Spectrum + and +3 Bath! Including SEXY photos!Continuing my "bath" projects: Today I repaired a 48K Spectrum + to working condition, an Issue 4 that is nice and stable. Took 4x Spectrums+ apart …

    ... ensure longer life of the ULA and Z80.

    [IMG ...
    Hedegaard Hedegaard September 2011 Sinclair Miscellaneous
  • Spectrum +128K Toaster Rack & a skanky Spectrum +2A Bath - Incl. naked pictures!Ok, so today was another productive day to complete 2x Spectrums with their baths and assembly. One fat and grey +2A and one sleek sexy 128K The grey…

    ... sink on her pus...uh....ULA!

    [IMG]http://i1193 ...
    Hedegaard Hedegaard September 2011 Sinclair Miscellaneous
  • Souping up my Spectrum+ 128k ToastrackI wrote a small piece on the various things I've been doing to my ZX Spectrum+ 128k toastrack, primarily getting it working with the bright output an…

    ... the sound through to the RGB connector, and sorting out the ... to route audio to the RGB socket (same pin as the ... obviously cut track to the RGB brightness pin, the board is ...
    RobeeeJay RobeeeJay September 2011 Hardware
  • Greetings all overheat problemsfirstly hello everybody and thanks for adding me to the forum dont know if ill be much use here but i hope so the problem i have or should i say a…

    ... socket but great on the RGB one
    for and hour ...
    the nth doctor the nth doctor September 2011 Hardware
  • Is this pure bulls@*t or what?Read [URL="http://www.ebay.co.uk/itm/SINCLAIR-ZX-SPECTRUM-PLUS-48K-REFURB-COMPOSITE-OUT-/170691876340?pt=UK_VintageComputing_RL&hash=item27be0755f4#h…

    ... the composite mod damaging the ULA, cant be true surely
    Macc Macc September 2011 Sinclair Miscellaneous
  • Dead Spectrum+Hi! Any suggestions where to start finding what's broken: Spectrum+ with issue 6A motherboard and nothing on TV. Top row of the upper memory chips g…

    ... hot (all 4) and also ULA. Regulator (7805CV) don't heat ...
    lillaolle64 lillaolle64 September 2011 Hardware
  • 128k+ / Toastrack - working, boxed, polys, RGB ScartPosted on ebay. Selling as its just sat around doing nothing. [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260856389061#ht_500wt_1156[/…

    Posted on ebay.
    Selling as its just sat around doing nothing.

    [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260856389061#ht_500wt_1156[/url]
    boyroberts boyroberts September 2011 Sales
  • Possible scan doubler?I wonder if [URL="http://www.ebay.com/itm/ARCADE-RGB-CGA-EGA-YUV-VGA-HD-VIDEO-CONVERTER-BOARD-/140521303998?pt=LH_DefaultDomain_0&hash=item20b7b8efbe…

    ... ://www.ebay.com/itm/ARCADE-RGB-CGA-EGA-YUV-VGA-HD ... takes both digital and analog RGB and it has been tested ...
    protek protek September 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... to go from under the ULA to under the CPU.
    ULA pin 37 (A15)
    Pin ... fourth NAND gate) goes to ULA pin 36 (A14)
    Pin ... .e.+5V) will stop the ULA responding to I/O requests ...
    cmonkey cmonkey October 2011 Hardware
  • black +2 go awayHi, All what is my problem if i have the proper voltages inside my black Spectrum +2 black (+5v+12v) in all the important IC's , and not have any vi…

    ... if i put high level ULA go away, but i hope ...
    gorski gorski October 2011 Hardware
  • Little experiment in ULA+Just tried Image 2 ULAPlus and this is the result: View it: [url]http://jbacteria.antoniovillena.es/48s?scarlett.tap[/url] Download it (you must ex…

    Just tried Image 2 ULAPlus and this is the result:

    View it:
    [url]http://jbacteria.antoniovillena.es/48s?scarlett.tap[/url]

    Download it (you must execute in a supported emulator like SpecEmu):
    [url]http://jbacteria. ...
    antoniovillena antoniovillena October 2011 Development
  • Definitive Replay Attendance List 2011There's not too long to go until Replay 2011 in Blackpool, so I thought I would make a separate thread to list WOS members who say they're going to t…

    ... of the definitive ZX Spectrum ULA book, ISBN-13:978-0 ...
    Spector Spector October 2011 Announcements
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... />
    I have verified the ULA (5C112E-3) works by testing ...
    Spectrum and a working ULA from another Spectrum produces the ... back!) It does seem the ULA becomes slightly hotter than usual ... CPU and ROM
    and ULA, with the expected 470ohms resistance ...
    Zorn Zorn November 2011 Hardware
  • ARM no thank youI am getting sick of all these ARM powered devices, the latest being that Atari Flashback 3. They are more or less the same crap. Everything is just …

    ... do not even output true RGB 15 kHz, all running on ... ) and hook them through real RGB 15 kHz...
    maiki maiki November 2011 Emulators
  • Toastrack troubleI just received a toastrack off ebay that someone had bizarrely removed the modulator, no matter, ill go through RGB and replace that at some point, …

    ... , no matter, ill go through RGB and replace that at some ...
    Macc Macc December 2011 Hardware
  • Spectrum +2 and DivIDE - which SWHi I am completely new to Spectrum, and have no clue. I just bought a spectrum +2 and a DivIDE (non plus) is hopefully on its way. (together with an…

    ... its way. (together with an RGB cable)

    My question ...
    ricsi ricsi December 2011 Hardware
  • Spectrum +3 and Commodore 1084S-D1Hi everybody, I know, we already talked about this here, but I still have the problem and cannot find the solution. I just bought a video cable from…

    ... on an analogue TV in RGB mode) also has a rolling ...
    dg67 dg67 December 2011 Hardware
  • SpectrumQuestI'm still on the way to enojy my two Spectrums, a rubber 48k and a +2 grey model. Well, today I'm working on my +2. It makes no sound. I already ask…

    ... to the TV by an RGB cable bought from Retro Computer ... -ZX-Spectrum-2-Grey-Model-RGB-Scart-TV-Lead-/250798455500?pt ...
    Spectrum Spectrum December 2011 Hardware
<1…28293031323334>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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