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<1234567…34>
  • ULA chipHi, Does anyone have an ULA chip for a Spectrum 48K issue 2 for sale?

    Hi,

    Does anyone have an ULA chip for a Spectrum 48K issue 2 for sale?
    eptheca eptheca August 2012 Wanted
  • THE ULA CHIPDoes anyone know which the ULA chip is in Spectrum +2 ?

    Does anyone know which the ULA chip is in Spectrum +2 ?
    George George November 2012 Hardware
  • WANTED: ULA chip for Issue two SpectrumHello, I fired up my Issue Two ZX Spectrum a couple of weeks ago, and it seems my ULA chip is failing again. Has anyone got a spare working chip the…

    Hello,

    I fired up my Issue Two ZX Spectrum a couple of weeks ago, and it seems my ULA chip is failing again. Has anyone got a spare working chip they'd be willing to sell? Please PM me if you can help.

    Regards,

    Kamil
    kamilb1998 kamilb1998 February 2013 Wanted
  • WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello, Attempting to repair my 128k+ speccy. Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also. If anyone has this chip or has a…

    ... + speccy.
    Needs a ULA(IC1)chip from either a 128k+ or ... chip or has a speccy that's broken(other than the ULA ... ), please give me a shout.
    I will pay for chip ...
    thomas3120 thomas3120 January 2003 Wanted
  • ULA chipHi. Where i can find a ULA 6C001E-6 chip for an 3B issue Speccy ? Also looking for one 7805 heatsink... Thank

    Hi.

    Where i can find a ULA 6C001E-6 chip for an 3B issue Speccy ?
    Also looking for one 7805 heatsink...

    Thank
    Gods Gods May 2007 Wanted
  • ZX81 ULA 2C210E wantedHello, I'm in need of a working 2C210E (not the earlier 2C184E) ULA chip used on zx81s and Timex1000s. These were sold on ebay for 9 quid each some …

    ... 2C210E (not the earlier 2C184E) ULA chip used on zx81s and Timex1000s ...
    gtsamour gtsamour January 2009 Wanted
  • MicroDrive ULA replacement - best way?I have a mirodrive playing up, odd motor sound, sometimes it reads ok sometimes not. Just wondering if its worth replacing the ULA in it, and whats …

    ... if its worth replacing the ULA in it, and whats the ... a look. I have a ULA chip about the place.

    Steve(spt) Steve(spt) May 2009 Hardware
  • Issue One 'Dead Cockroach' chipI recently got hold of an Issue One spectrum, and I started wondering: is the dead cockroach chip required due to a flaw on the PCB, or is it really …

    ... wondering: is the dead cockroach chip required due to a flaw ... really a flaw in the ULA chip itself?

    Also, were ...
    trellis trellis July 2009 Hardware
  • ZX Spectrum ULA core available at OpenCoresHi! On April, 23th, I opened a new project at the OpenCores website: [url]http://opencores.org/project,zx_ula,Overview[/url] Right now, it has a, h…

    ... , hopefully, complete description of the ULA chip, written in Verilog, and largely ... place a CPLD chip on it to act as ULA, with a ... way I hope to tune ULA timmings in case there's ...
    mcleod_ideafix mcleod_ideafix April 2012 Hardware
  • Which ULA?Just a quick question, more of interest rather than immediate need... I am thinking ahead about the repair of an Issue 2 board, and also an Issue 6A …

    ... of which 'may' need replacement ULA chips.

    After a ... whether each issue has specific ULA chip requirements. I'd be very ... before heading down the new ULA route.

    Cheers,
    Simon_Carr Simon_Carr June 2013 Hardware
  • Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…

    ... , the Nebula - A Spectrum 48 ULA replacement module. You can read ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/

    (Big ... to Chris Smith for the ULA book:)

    Cheers,
    Retroleum Retroleum April 2016 Hardware
  • 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://www ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
    Runs perfect ...
    RSwipeCA RSwipeCA August 2016 Hardware
  • Replacement chipsAfter much digging around on here, it seems to be the general consensus that the ULA could be causing the problems im having (spectrum is deaf to the…

    ... the general consensus that the ULA could be causing the problems ... i could get a replacement ULA chip please? :)

    Thanks
    johnneh johnneh August 2004 Sinclair Miscellaneous
  • TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…

    ... to the left of the ULA chip (tr6/7 ???? i don't ...
    gtsamour gtsamour March 2007 Hardware
  • Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…

    ... with simple logical compoments! no ULA chip needed !
    Gods Gods May 2007 Hardware
  • ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …

    ... spectrum and checked the 7805 chip (the one near the ... output) or a faulty Ferranti ULA chipset?

    Unfortunately ... uk/T34VG1-USSR-Made-of-ULA-Chip-for-Z80-CPU-ZX- ...
    Msx2 Msx2 July 2007 Hardware
  • Ebay complaintsDoes anybody know how to complain to Ebay about Ebay? They's just scrapped my auction for a ULA chip saying it was an illegal item :lol: So apart f…

    ... scrapped my auction for a ULA chip saying it was an illegal ...
    DEATH DEATH July 2007 Chit chat
  • Another badly behaved RAM upgradeI have a 48K issue 4A board (yellow it is) that was a 48K machine from new, but only reports 16K working with the Sinclair ZX Test ROM in an Int2. H…

    ... comes back with a certain chip, that chip has been replaced with ... it - it still says that chip is duff. Unperturbed I de ... put them through the TTL chip tester that's part of ... swapped in a known good ULA chip just coz its an easy ...
    Womble Womble November 2008 Hardware
  • "8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…

    ... BASS AND ENJOY THE Z80 CHIP SOUND!

    "8 CHANNELS ... only, for making music. Z80 chip produces all sounds and sends ... of ZX SPECTRUM (jack) through ULA chip.

    ZX-7 editor ...
    Mister Beep Mister Beep November 2009 Sinclair Miscellaneous
  • RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…

    ... .4690 MHz from ZX board. ( ULA chip use 17.7345 MHz = 35 ...
    velesoft velesoft July 2010 Hardware
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ... 3 separate power supplies, each chip needs 12V, 5V and -5V ... these machines is the ULA chip, the only custom chip in the speccy ... it wouldn't, replacing the chip fixed the issue, I originally ... all three connected, the suspect chip was was missing its connection ...
    Womble Womble August 2010 Hardware
  • +3 issues....Hello All I came by a couple of +3's on ebay and I'm having issues with them. Since I only ever owned a rubber key, thought someone might be able to…

    ... of screen roll. This the ULA chip gone bad?

    Thanks ...
    pigdog pigdog September 2010 Hardware
  • broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…

    ... is turned on.
    strangely, ULA chip on this 48K is sitting ...
    orange orange December 2010 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... replacement for the Sinclair ULA chip fitted in Spectrum ... a small platform flash chip to store FPGA configuration ... originally generated by the ULA are not present here ... to solder one big chip with hundreds of ... to prevent the replacement ULA to touch the upper ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • ZX Spectrum 48k - no CLK signalHello I'm trying to repair ZX Spectrum 48 mainboard issue 3B. When i check signal with oscilloscope on X1 or on ULA pin 39. I get stable 2V no clock…

    ... oscilloscope on X1 or on ULA pin 39. I get stable ... no clock pulses. Can broken ULA chip be the cause of no ...
    gottrek gottrek November 2013 Hardware
  • MISTER BEEP - the NEW ZX48 album 2014 "Chromospheric Flares"Hi mates. So. Here it is. Something like 2 years after the previous one - here is my new ZX Spectrum album "Chromospheric Flares". [img]http://mi…

    ... by Spectrum's CPU - Z80 chip - that produces all sounds ... (jack) through 1-bit transducer - ULA chip.
    Sometimes it sounds better ... works!

    Z80 chip produces all sounds and sends ... of ZX SPECTRUM (jack) through ULA chip - the 1-bit transducer.< ...
    Mister Beep Mister Beep January 2014 Announcements
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... Keyboard membrane, or IC1 (the ULA chip).

    I ... the signs of a faulty ULA chip are. Are there any ... out to see if the chip is faulty?

    ULA is on the board ... for a certain model ULA.) Tomorrow I will check ...
    CornishManicMiner CornishManicMiner March 2014 Hardware
  • '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 or ...
    blueowl0708 blueowl0708 September 2014 Hardware
  • spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…

    ... /> I did notice that the ULA chip, after touching it for about ... would try to get another ULA chip.
    The motherboard is a ... can be replaced including the ULA.
    thoma thoma January 2002 Sinclair Miscellaneous
  • WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…

    ... 2 machine.

    The ULA chip uses the same pin (28 ... on pin 28 of the ULA chip after the OUT, with no ... FE are always one. The ULA with the lower 16K of ... of the Z80 and the ULA are connected by small ... the lower 16K, the ULA halts the processor if it ...
    Dr BEEP Dr BEEP November 2001 Sales
<1234567…34>

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Related Threads

  • WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello,<br /> Attempting to repair my 128k+ speccy.<br /> Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also.<br /> If anyone has …
  • ULA......Woooooo and ULA 160??'ello all from down under !<br /> <br /> they don't know the speccy well this way it seems, <br /> <br /> anyways, picked up my brand new astra yeste…
  • ULA chipHi.<br /> <br /> Where i can find a ULA 6C001E-6 chip for an 3B issue Speccy ?<br /> Also looking for one 7805 heatsink...<br /> <br /> Thank
  • Serching for ZX printer ULA and ZX interface I ULAIs there anyone having any spares. In both cases, I swapped ULA's from working equipment which fixed things, so I'm 100% sure it's the ULA that is ca…
  • Where: ZX Printer ULA's and ZX interface I ULA'sIs there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX S…
  • ULA chipHi,<br /> <br /> Does anyone have an ULA chip for a Spectrum 48K issue 2 for sale?
  • THE ULA CHIPDoes anyone know which the ULA chip is in Spectrum +2 ?
  • WANTED: ULA chip for Issue two SpectrumHello,<br /> <br /> I fired up my Issue Two ZX Spectrum a couple of weeks ago, and it seems my ULA chip is failing again. Has anyone got a spare work…
  • 48k Spectrum ULA 6C001E-6 ChipAs title says, for sale: ULA 6C001E-6 Chip<br /> <br /> PM if interested.
  • Whats the name of the chip that replaces the ULA?I can't find it through searching using the above title. I distinctly remember reading about a new type of programmable chip that can be set to behav…

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