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<1…567891011…34>
  • Memory and Replacement ULA modules.Thought you might like to see my future proofed 48k version 6A with some upgrades fitted. Has had the following... Recap. Traco Power TSR 1-2450 p…

    ... .zigg.net/
    Nebula Spectrum ULA Chip replacement module from... http ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
    Runs ...
    RSwipeCA RSwipeCA August 2016 Hardware
  • How to turn OFF the "ULA Plus"??Hi. We've made a platform-game for 128k. While testing it on 2 machines with ULA+ we have noticed the colours are crap. Can You suggest h…

    Hi.

    We've made a platform-game for 128k.

    While testing it on 2 machines with ULA+ we have noticed the colours are crap.

    Can You suggest how to turn off the ULA+ in the code?
    Yerzmyey Yerzmyey September 2016 Sinclair Miscellaneous
  • ZX 128+ RGB Scart - ghosting,patterns,flickeringHi all, I have a ZX Spectrum 128+ with RGB Scart (from TheSinclairShop bought ages ago) hooked on a 40' Samsung Smart TV. Awful ghosting, silly p…

    ... a ZX Spectrum 128+ with RGB Scart (from TheSinclairShop bought ages ...
    Pyjamarama Pyjamarama October 2016 Hardware
  • Spectrum +2 various problemsHey there, I just recently acquired a Spectrum +2 and it's got various problems with it. First off, I get a rolling picture through both RGB and comp…

    ... a rolling picture through both RGB and composite video, and I ... I may have a bad ULA on my hands as well ... . Would a bad ULA cause a rolling picture or ...
    ApolloBoy ApolloBoy October 2016 Hardware
  • bizarre error on a grey ZX Spectrum+2 - the long search for a small problemHi, I got a ZX Spectrum+2 that worked a bit but crashed while loading or running 128k games. I installed a 128k-test-ROM that told me about RAM fa…

    ... ; no effect
    * changing the ULA and the gate array 40058 ... but as I used the RGB output and did not use ...
    ingo ingo November 2016 Hardware
  • Spectrum +2 RGB to monochromeI would like to have a monochrome video output from my 2 grey but I don't want to go for the s-video modification, at least not right now. I seem …

    ... a circuit designed to take RGB signals and make them into ...
    Renegade Renegade February 2017 Hardware
  • ZX-Paintbrush and global palette and ula+ supportHello, I think I need some help for the palette issue of ZX-Paintbrush. I want to check whether the way I'm about to clear the palette handling i…

    ... the user activates ula+ feature (by opening the ula+ palette editor, ... /> When I now enter the ula+ palette editor...
    [img ... with the new option "Deactivate ula+ palette". This switches back ... colours of the last selected ula+ palette unchanged. To reset ...
    clausjahn clausjahn March 2017 Software
  • No CLK on issue 2 ULA pin 32I'm trying to fix an issue 2. The symptoms are as follows:- Black and white bars on screen, colours near impossible to tune in, although these po…

    ... of CLK on the ULA, but the ULA's I'm using ... .
    Working back from the ULA I tested and changes the ...
    lesoleil70 lesoleil70 April 2017 Hardware
  • ULA+Does the ULA+ have to be on before writing a palette? In the examples I've seen, they all enable the ULA+ before writing the palette. Maybe I sh…

    Does the ULA+ have to be on before ... seen, they all enable the ULA+ before writing the palette.
    Alcoholics Anonymous Alcoholics Anonymous April 2017 Development
  • Whats the best composite or Rgb video signal to HDMI convertor boxIm looking at this one which is 20 pounds http://www.ebay.co.uk/itm/192200878335 there are good reviews on youtube, plus it does composite or r…

    ... , plus it does composite or rgb so will work well with ... spectrum +2 which can output rgb over scart, which converts better ...
    Level20 Level20 June 2017 Hardware
  • ZX 81 / TIMEX TC1000 2C210E ULA'sHi, up for sale: 11x tested 2C210E ULA's, for the ZX Spectrum ZX81 or Timex TC1000. Asking price £29 shipping included to EUROPE, £33 for the …

    ... :

    11x tested 2C210E ULA's, for the ZX Spectrum ...
    o0Nosferatu0o o0Nosferatu0o July 2017 Sales
  • I'm totally confused now, RGB, composite, SCART what?Hello everyone. I have a +2A coming from the UK and I am wondering how I'm going to connect it to a modern TV. The TV has inputs on the back that ar…

    ... has a TV out and RGB output. I understand that I ... to use the RGB out.

    Is RGB the same as ...
    ivanb303 ivanb303 August 2017 Hardware
  • ZX Spectrum 48k ULAlooking for a ZX Spectrum 48k ULA Thanks Phil

    looking for a ZX Spectrum 48k ULA

    Thanks

    Phil
    nama nama September 2017 Wanted
  • I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…

    ... a black screen using the RGB-SCART scart cable (specific for ... correct anything above 1v selects RGB? I'm pretty lost what ...
    ivanb303 ivanb303 September 2017 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... the same "ULA" (SCLD) but only the TC2068 has RGB signals on ... the espansion bus?
    The RGB signals are digital or analogue ... be hacked to route the RGB signals to a suitable socket ...
    Renegade Renegade September 2017 Hardware
  • Can a Spectrum connect to an Amstrad CPC 464 monitor via RGB?Can a Spectrum connect to an Amstrad CPC 464 monitor via RGB?

    Can a Spectrum connect to an Amstrad CPC 464 monitor via RGB?
    taylod74 taylod74 October 2017 Hardware
  • S-video to RGB conversion?Are there any good converters (not too expensive) that could do the job satisfactory? I understand there's this one: http://www.ambery.com/cost…

    ...

    But it outputs RGB with sync on Green, and ... not RGB+Comp.sync which is what ... spectrums (or other machines) to RGB TVs or monitors.
    Renegade Renegade December 2017 Hardware
  • Got Myself a 128K “Toast Rack”! (Plus a simple audio fix guide.)I got myself a 128K Spectrum off of eBay the other day. It’s in pretty good nick, but the membrane went the way of the dodo sometime during shipping …

    ... two resistors that mix the ULA and AY audio to make ... agenda is to make an RGB cable. The picture quality over ...
    Ast_A_Moore Ast_A_Moore January 2018 Hardware
  • Finally got myself a 128k toastrack too ! :)Hi all, I recently bought a vintage computers lot on eBay, just because there was a toastrack inside (and a better looking CPC 6128 with edge conne…

    ... to make a composite or RGB cable), but I could barely ... issue 6U with an Amstrad ULA.

    [img]http://bugpat ...
    bugpat bugpat January 2018 Hardware
  • The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…

    ... no avail. I get the ULA snow, sure thing, but that ...
    Ast_A_Moore Ast_A_Moore February 2018 Development
  • New colour palette for 16K/48K/+ machines, based on ULA YUV voltagesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …

    ... ’s book The ZX Spectrum ULA.

    This colour palette ... use the original Sinclair Ferranti ULA, 5C102E, 5C112E or 6C001E. It ...
    rga24 rga24 February 2018 Emulators
  • Miracle Systems RGB monitor interfaceUpon doing some reading of the book [i]The Complete Spectrum edited by Alan Scott[/i] I found a reference to this RGB interface for the Spectrum whic…

    ... found a reference to this RGB interface for the Spectrum which ... , Miracle Systems announced a new RGB interface for the Spectrum. Like ... drive both TTL and linear RGB monitors, and would even let ...
    Renegade Renegade March 2018 Hardware
  • 6C001EE-7 ULA A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas? [img]https://pbs.twimg.com/media…

    A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas?

    [img]https://pbs.twimg.com/media/DbYC8aNXkAANAm4.jpg:large[/img]
    impomatic impomatic April 2018 Hardware
  • where can i get ula's from?i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either.

    i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either.
    digital digital October 2018 Wanted
  • Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …

    ... 2 with a 5C112E-2 ULA. Just had to replace ... maybe a problem in the ULA could cause b) or ... great book "The ZX Spectrum ULA: How to design a ... br /> Patrick

    My ULA Y output:
    [img]https ... ://i.postimg.cc/HxDsHvPC/ULA-Y.jpg[/img]
    ...
    paf paf November 2018 Hardware
  • RGB SCART Lead for +3 Spectrum. Picture issues. (Fades to Black, Rolling, Sync Issues)Hi there, I recently ordered a Sinclair Spectrum 128 +2 & +3 RGB Scart Cable (Ean13: 0705693506845) from coolnovelties.co.uk to use my Sinclair Spect…

    ... Spectrum 128 +2 & +3 RGB Scart Cable (Ean13: 0705693506845) from ... ://www.retrogamingcables.co.uk/female-rgb-break-out-scart-to-4 ... power up my +3. On RGB mode I will initially get ... use the same monitor with RGB SCART leads attached via the ...
    tomlee80 tomlee80 February 2019 Hardware
  • zx spectrum +2A RGB scart issueHi I bought a RGB to scart cable for my zx spectrum +2A black. But it has some issues. My LCD TV has two scarts inputs: If I connect the cable to…

    Hi
    I bought a RGB to scart cable for my ...
    landex landex February 2019 Hardware
  • Replacing voltage regulators - need to sanity check a few things pleaseHi Everyone I'm in the process (with a lot of help from some friends at Greenford Computer Club), of giving my three Speccys some much needed prev…

    ... Toastrack, given both have RGB outputs. I'm assuming ... or bad) to the RGB output of either machine.

    [b]ULA heatsinks[/b]
    As the ... heatsink to the the ULA without needing to desocket ... ll need to pull the ULA out of the +2 ...
    chrisgreen chrisgreen May 2019 Hardware
  • Grey +2 with lines on some games on RGB connectionHi Everyone, Is it OK if I ask a question? I dug my +2 out of the loft after far too many years about a month ago, and I have finally got it ba…

    ... my spectrum on SCART via RGB port on a plasma TV ...
    AD-RS1600i AD-RS1600i May 2019 Hardware
  • doubt about swapping ULA in an issue 2 boardIs it possible to swap a 6C001E-6 ULA type with a 5C112E ? I have this issue 2 board that is not booting, it shows me a black border with horizont…

    ... to swap a 6C001E-6 ULA type with a 5C112E ?
    ULA.
    Diagnostic ROM doesn't ... would like to swap the ULA and Z80 to narrow the ... like to try swapping the ULA as I have another working ...
    gleegum gleegum September 2020 Hardware
<1…567891011…34>

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
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