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  • 128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…

    ... works but it won't read any tapes.
    I've ... had removed the audio-in port!

    Sob ...
    stu232 stu232 April 2014 Hardware
  • 5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…

    ... discusses 6C011E as the NTSC ULA sold in Spectrums in Chile ... Issue 3 style 6C series ULA.

    Here we have ... much earlier 5C series NTSC ULA, in a Spectrum with a ... time the 5C112E-2 PAL ULA was being made.

    rga24 rga24 April 2014 Hardware
  • Which ULA to fit in which issue SpectrumI spent a little while studying the resistor changes on page 30 of the ZX Spectrum 48K service manual. They all concern aspects of the video circuit …

    ... problems to have the correct ULA for that board.

    ULA. 220R for 5C112E, 1K for ... 6C001E. The older ULA seems to be designed for ...
    rga24 rga24 April 2014 Hardware
  • Wanted Spectrum ULAI'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7. Thanks!

    I'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7.

    Thanks!
    protek protek April 2014 Wanted
  • ULA 6C001E-7After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Would anyone like a 6C001E-7 …

    ... anyone like a 6C001E-7 ULA in exchange for a 5000 ... series ULA, either 5C112E, 5C112E-2 or ...
    rga24 rga24 April 2014 Sales
  • Wanted: ULA 5C112E, 5C112E-2 or 5C112E-3After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Does anyone have a 5000 serie…

    ... anyone have a 5000 series ULA, either 5C112E, 5C112E-2 or ...
    rga24 rga24 April 2014 Wanted
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... of the setting of port F4 bits 2 and ... bits 2 and 3 in port F4 when applying memory ... EXROM socket or the cartridge port. So we might as ... fixes this for the cartridge port and the Bus Expansion ... locations when those locations are read.

    The Timex ...
    rga24 rga24 May 2014 Hardware
  • Read Data from memoryHi there. Not been on this scene for a long time. Does anyone know how to do a routine to read data from memory(peek..etc) rather than using lines of…

    ... to do a routine to read data from memory(peek..etc ... =1 to 10
    30 read a(f)
    40 next ...
    davepierce07 davepierce07 May 2014 Sinclair Basic
  • 48k Spectrum ULA issue?Hi All, Have a couple of Spectrums Plus' with their orignal ULAs showing the failure as in screen 2 on the left. [URL="http://hardware.speccy.org/i…

    ... confirm this is probably the ULA? I get the same error ... in other Spectrums using the ULA's so I'm virtually ...
    owdeuk owdeuk May 2014 Hardware
  • New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…

    ... memory, snow in border, colour ula delay, interrupt starts at video ... /81
    Added idle bus port emulation
    Added option to ... option to view CPU & ULA registers
    Added option to ...
    chernandezba chernandezba May 2014 Emulators
  • SEGA GENESIS joypad from Ebay[IMG]http://velesoft.speccy.cz/zx/joypad/IMGP9641.JPG[/IMG] On Ebay is possible buy very cheap chinesse joypad compatible with Sega Genesis / Sega M…

    ... ]

    After read port #1F return kempston joystick interface ... at low level and read state of all 8 ...
    Each reading from port 31 set signal SELECT for ... and each reading from port 95 reset signal SELECT ... If software not use port 95 then joypad work ...
    velesoft velesoft June 2014 Hardware
  • Microdrive-Microdrive incompatibility?Hi All! Finally I could get enough Microdrives and connecting blocks (or cable replacement) to make the largest storage configuration of the classic…

    ... standalone unit, as they could read my test cartridge mostly for ... the microdrives to check the ULA version/manufacturing date or the ... ISS4 board with LA15-302 ULA and edition 2 ROM. (the ...
    jimre jimre June 2014 Hardware
  • Toastrack ULA QuestionDid any of the toastracks have the +128 grey ula with Amstrad printed on them?

    Did any of the toastracks have the +128 grey ula with Amstrad printed on them?
    zedexspectrum zedexspectrum July 2014 Hardware
  • "How I Would Have Ended BioShock" - a brilliant read for Bioshock fansIf you played (and liked) the first Bioshock game, then you MUST read this: [url]http://www.pentadact.com/2009-04-15-ending-bioshock/[/url] it's on…

    ... Bioshock game, then you MUST read this:

    [url]http ... Bioshock yet, then don't read that article, as it will ...
    ewgf ewgf July 2014 Chit chat
  • IF1 Ula Questionim thinking about getting an interface 1 but im aware that there is/was an issue with the ula.My question is if i have the opportunity to buy one but…

    ... /was an issue with the ula.My question is if i ... or a deformity above the ula does this mean i need ... they still functional but the ula gets hot?can someone explain ...
    zedexspectrum zedexspectrum July 2014 Hardware
  • ULA type and datecode listHere is a list of all known ULA datecodes with type, collated from various threads and the serial numbers list. For the 6C series ULAs without a -5, …

    ... a list of all known ULA datecodes with type, collated from ... probably a replacement ULA.

    [CODE]DATE ULA ISSUE(s)
    Jakeyw Jakeyw August 2014 Hardware
  • [port] Game About SquaresOriginal: [url]http://gameaboutsquares.com[/url] And a decent port: [url]http://speccy-live.untergrund.net/wp-content/uploads/2014/08/Squares.zip[/ur…

    Original: [url]http://gameaboutsquares.com[/url]
    And a decent port: [url]http://speccy-live.untergrund.net/wp-content/uploads/2014/08/Squares.zip[/url]

    The game has AY music, nice kbd control (unlike the original) and undo feature.
    lvd lvd August 2014 Games
  • ZX81 ULA questionRecently, I got a nice bundle of kit comprising of a ZX81, Memotech keyboard, PSU and brand new 16K Sinclair Memory pack. The ZX81 has a ULA with no…

    ... />
    The ZX81 has a ULA with no ID other than ... /> Unfortunately all chips except the ULA are socketed.
    rune rune August 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…

    ... too.

    I've read through various posts and servicing ... I hope means that the ULA is all okay. The board ...
    Wiggs Wiggs September 2014 Hardware
  • 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 ... to the right of the read head, the other does not ...
    DEATH DEATH September 2014 Sales
  • 48k Spectrum ULA 6C001E-6 ChipAs title says, for sale: ULA 6C001E-6 Chip PM if interested.

    As title says, for sale: ULA 6C001E-6 Chip

    PM if interested.
    dreamscape dreamscape September 2014 Sales
  • ULA queryDoes it matter which version ULA fits in a version of the spectrum motherboard, or are they are compatible with each other?

    Does it matter which version ULA fits in a version of the spectrum motherboard, or are they are compatible with each other?
    lesoleil70 lesoleil70 October 2014 Hardware
  • Sinclair PC 200 Error: Faulty SYSTEM serial portHi guys, this is my first post but not a happy one. I have bought 2 weeks ago an Sinclair PC200, when powerd up it shows the following message: "[B]E…

    ... : "[B]Error: Faulty SYSTEM serial port[/B]". Any one have an ...
    jcarvalho jcarvalho October 2014 Hardware
  • joystick port for output ?just curious regarding the joystick ports on 8 bit machines. I just purchased something on the atari 8 bit.. but included in the box was a atari 8 …

    ... ST end is a MIDI port.

    so got me ... a modified joystick interface or port
    fog fog November 2014 Hardware
  • Boomshine in SpecBASHere's a little game called "Boomshine": [url]http://www.k2xl.com/games/boomshine/[/url] It's a really nice, relaxing puzzle game about exploding b…

    ... 570
    560 INC lv: READ nb,target
    570 PRINT ...
    Dunny Dunny November 2014 Sinclair Basic
  • Issue 3 ULA ProblemsI've been given an Issue 3 48k to fix. It was producing no video and no picture on the TV. The coil was buzzing so it was getting power and all the v…

    ... problem might be with the ULA.

    Sure enough, ... it with a spare ULA from an Issue 4( ... I decided to swap the ULA again for one out of ... .

    If the ULA is only partially working, and ... the wrong tree with the ULA because when dropping the ...
    retrogamemart retrogamemart November 2014 Hardware
  • New Floppy Interface for the +2a/b (black case)Hello everybody! For a long time I wondered about the posibility of adding a FDD to the +2a/b (black). I knew it was possible; All the logic is alre…

    ... is already in the +2 ULA and the DOS is already ... /> When connected to the expansion port, the interface will turn any ...
    BCH BCH November 2014 Hardware
  • Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …

    ... ever seen a 6C001E-7 ULA with no indication of "Ferranti ...
    pkersey pkersey December 2014 Hardware
  • Zx spectrum +2a aux portCould some one help me I have just got my self a zx spectrum +2a I had too put a new belt on the cassette but on the moutherboard the aux port is bro…

    ... on the moutherboard the aux port is broken by the person ...
    Scoobyatgb Scoobyatgb December 2014 Hardware
  • Heatsink for ULAHi, My Speccy 48k issue 4s starts to get temperamental when it's been on for a while. Machine itself is fine but loading gradually becomes more unre…

    ... chum on Twitter suggested the ULA might be getting hot.
    ULA might cure it? Question is ... put a heatsink on their ULA?

    Cheers ...
    chinnyhill10 chinnyhill10 December 2014 Hardware
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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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