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  • Mystery Port on ZX Spectrum 48k +Hi, I was wondering if anyone could help me with a little mystery? After I tripped over my first 48k +, and knocked out the joystick expansion, I…

    ... I tripped over my first 48k +, and knocked out the joystick ... , I bought an almost identical 48k + from a second hand shop ...
    RetroPhase2014 RetroPhase2014 January 2015 Hardware
  • Zero 0.7 / Zero 0.6.5 releasedAfter months of grueling work, I?m proud to announce the Vanilla version of Zero, which is a regular Windows version of the emulator. I?ve tried to m…

    ... emulation is enabled on a 48k speccy.
    ? Fixed an issue ... emulation (FrankT).
    ? Fixed a contention timing issue with IN.
    Arjun Arjun January 2015 Emulators
  • 48k ProblemsBought in a 48k at work just before christmas. Nice machine, boxed (box has seen better days) and i'm presuming it's an issue 1 machine (001-596759.…

    Bought in a 48k at work just before christmas. ...
    SimonLCFC SimonLCFC January 2015 Hardware
  • DivMMC Enjoy! Works on 3 of 4 48k Speccy's I own?Hey guys. I have a DivMMC Enjoy! Which is absolutely awesome! Love it to bits. It works perfect on three of my 48k Speccy's, but something isn't rig…

    ... perfect on three of my 48k Speccy's, but something isn ...
    RSwipeCA RSwipeCA January 2015 Hardware
  • 3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…

    ... with composite input for a 48k Speccy.

    I got ...
    RSwipeCA RSwipeCA January 2015 Hardware
  • 48k noise problem..Hi guys, I need some hardware advice with my old 48k. The machine is VERY noisy - I've fixed the video noise by performing the 'composite' mod, but …

    ... hardware advice with my old 48k.

    The machine is ...
    GameBaddie GameBaddie January 2015 Hardware
  • 48k Music Software?Hi Guys, I need to create a short soundtrack for an art project, and Id like to use my 48k Speccy - Is there any music production software that w…

    ... Id like to use my 48k Speccy -

    Is there ... that will work on the 48k?

    I tried to ...
    GameBaddie GameBaddie January 2015 Sinclair Miscellaneous
  • Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…

    ... .bytedelight.com/?product_cat=zx-spectrum-48k-refurbished-boards[/url]
    [/SIZE ...
    bverstee bverstee February 2015 Sales
  • Seeking April fool article: turn 48k into 128kHi everyone! When I was about 11 years old (I think ?) an article appeared in a Spectrum related magazine. It turned out to be an April fool's joke,…

    ... ) to turn your ZX Spectrum 48k into a 128k. The analogy ...
    pieterc pieterc February 2015 Sinclair Miscellaneous
  • Understanding contentionI'm trying to understand contention and its implications when some "weird" bus cycles (such as I/O cycles with I/O addresses in the contended memory …

    I'm trying to understand contention and its implications when some ... both memory and I/O contention. Memory contention causes T1 to be ... ?

    Also: memory contention makes T1 to be enlarged ... for instance, to avoid memory contention) that begins at the ...
    mcleod_ideafix mcleod_ideafix May 2015 Hardware
  • 48k issuesThe 48k speccy had several alterations ( issues) and I was wondering, they all seam to work ok so what was the point?<br>

    The 48k speccy had several alterations ( issues) and I was wondering, they all seam to work ok so what was the point?
    Tau Ceti Tau Ceti June 2015 Hardware
  • 48K Power Supply Outputs 13v instead of 9v.Hey, My local retro gaming shop gave me a broken 48k ZX spectrum power supply. The insulation at the strain relief had split open. "Easy fix" I th…

    ... shop gave me a broken 48k ZX spectrum power supply. The ...
    vext01 vext01 July 2015 Hardware
  • Fuse tests - INC BC causes contention delayHi all, In the FUSE test suite it has the following for the output of opCode 0x3 (INC BC): 0 MC 0000 4 MR 0000 03 4 MC 0001 …

    ... />
    In the FUSE test suite it has the following for ...
    garethadams garethadams July 2015 Emulators
  • New 48K Spectum emulator on the Windows StoreHi, I've just uploaded a new "Free" Spectrum 48K emulator to the Windows Store, see: http://apps.microsoft.com/windows/en-gb/app/specwin48/4d54…

    ... uploaded a new "Free" Spectrum 48K emulator to the Windows Store ...
    SpeccyBoy SpeccyBoy July 2015 Emulators
  • Whites are yellow - 48k Issue 2I have a 48k issue 2 that appears to be working fine. I've replaced all but 2 of the electrolytic caps (mostly because the 2 were not in stock at my…

    I have a 48k issue 2 that appears to ...
    wedwo wedwo August 2015 Hardware
  • 48k Memory MapIs there a link or info anywhere that explains the 48k memory layout? My game uses double buffering and I'm trying to decide where the best memor…

    Is there a link or info anywhere that explains the 48k memory layout?

    My game uses double buffering and I'm trying to decide where the best memory location should be.
    Atari_Jetman Atari_Jetman September 2015 Development
  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi, I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k). But when I compare them, they…

    ... out, because my Beta-Disk 48k was upgraded to
    Vision ...
    Luzie Luzie September 2015 Hardware
  • 48k not startingHi team, I have 2 48k's, one works (Issue 4s), one doesn't (Issue 4a). The non-working one appears to start, but not finish the RAM test. The pape…

    ... ,

    I have 2 48k's, one works (Issue 4s ...
    neillsun neillsun September 2015 Hardware
  • The right size for Standard Betadisk 48k TR-DOS v4 ROMs is 8k and not 16kHi Emulator-Authors, I just want to clarify, that Betadisk 48 ROMs TRDOS v4 ROMs has size of 8 kByte and not 16k Byte. Only TRDOS v5 (of Beta…

    ... those Emulators to have Betadisk 48k.
    (If you try to ...
    Luzie Luzie September 2015 Emulators
  • 48k or 128k target ?Hi, As a new coder on Speccy, I wonder which Spectrum model to target for my forthcoming developments (game). I can see there are 3 different sys…

    ... with technical differences:

    48k
    128k /128k +2
    48k one ?

    Which model ...
    majikeyric majikeyric September 2015 Development
  • Replacement speakers for 16/48K SpectrumsThought I'd share a source of replacement speakers for the 16/48K machines: http://uk.rs-online.com/web/p/miniature-speakers/7903975/ (Equivalent…

    ... replacement speakers for the 16/48K machines:

    http://uk ...
    balford balford September 2015 Hardware
  • Emulator suggestion Betadisk 48k TRDOS v4 adress redirection to Betadisk TRDOS v5Hi, may I suggest the following: As there are some older programs only running on Betadisk 48k with TR-DOS v4 and it´s adresses 15360/15363 ins…

    ... only running on
    Betadisk 48k with TR-DOS v4 and ... BASIC-programs written for Betadisk 48k maybe run directly with TRDOS ...
    Luzie Luzie September 2015 Emulators
  • 48K colour issuesGentlemen, A friend handed me over a number of 48K machines to service, and among these there are four of them with various flavours of colour iss…

    ... me over a number of 48K machines to service, and among ...
    Opus Discovery Opus Discovery September 2015 Hardware
  • ZX Spectrum 48k Plus PackHi, Thanks to these forums and the ZX community I have refurbed a ZX Spectrum 48k Plus, which is boxed. It has a new keyboard membrane and has been…

    ... have refurbed a ZX Spectrum 48k Plus, which is boxed.
    Van_Dammesque Van_Dammesque September 2015 Sales
  • ZX Printer spares and partial paper roll - Wanted Motherboard for Spectrum 48K+The back of the printer is missing, and as you can see the lead going into the connector has seen better days. Perhaps this could be of use to someon…

    ... really after a working spectrum 48K+ motherboard, so I could trade ...
    lesoleil70 lesoleil70 October 2015 Sales
  • SINCLAIR SUPER BUNDLE: ZX SPECTRUM 48K + IF1 + MICRODRIVE + ZX PRINTER + JOYSTICK INTERFACE!http://www.ebay.co.uk/itm/171965481961?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 Here you are another piece of my Sinclair collection. …

    ... :

    a) ZX Spectrum 48k in MINT condition, It works ...
    ranma_simon ranma_simon October 2015 Sales
  • 48k problemsHi all Just plugged in a 48k that I bought to find that the screen is jumbled with different colour pixel blocks. I removed the casing and noticed…

    ... />
    Just plugged in a 48k that I bought to find ...
    jamiejoe jamiejoe October 2015 Hardware
  • New 48K cases?I've seen where you can buy new face plates (going to be buying some soon). But is there anywhere I can buy a new case for a 48K Spectrum? Than…

    I've seen where you can buy new face plates (going to be buying some soon).

    But is there anywhere I can buy a new case for a 48K Spectrum?

    Thanks.
    cbmeeks cbmeeks October 2015 Hardware
  • No contended memory?Sorry if this is a stupid question. But I'm trying to learn more about the ZX Spectrum. If I had a stock 48k Speccy and I could wave a magic wa…

    ... /> If I had a stock 48k Speccy and I could wave ... wand to remove the memory contention, what software would break?
    cbmeeks cbmeeks November 2015 Development
  • video quality issue on 48k machine after composite modHello! I just bought an 48k spectrum and did the composite mod. Unfortunately it did not end up as good as i hoped for. The screen after reset looks …

    Hello! I just bought an 48k spectrum and did the composite ...
    holovicc holovicc November 2015 Hardware
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  • 48K protectionWhich games were 'protected' by loading a full 48K block of code so that no copy program could fit in to memory?<br /> <br /> I know of 2 by heard. <…
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