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  • Is it safe to use TSTACK and OLDSP from a USR nnnnn environment?Hi guys, I've recently revived an old project of mine which gives the Spectrum +3 a new set of customised menus (see this thread [url="https://www.wo…

    ... does some RAM and ROM switching. In my original code i ...
    The_Bert The_Bert October 2017 Development
  • Interference when using modern PSUMy 48k revision 3 spectrum with a basic 1 wire composite video mod works perfectly with the original power supply. However When I use a modern regula…

    My 48k revision 3 spectrum with a basic 1 wire composite video mod works perfectly with the original power supply. However When I use a modern regulated supply (and I've tried a few) I get a lot of interference on the screen. I've tried adding a capacitor ...
    dave18 dave18 October 2017 Hardware
  • Need help from people with real 128/black +2 and grey +2A/+2B/+3.Please, if you have time and inspiration, run [url="https://www.worldofspectrum.org/forums/discussion/55518/test-of-screen-switching-timings"]this t…

    ... /discussion/55518/test-of-screen-switching-timings"]this test[/url] on ...
    weiv weiv November 2017 Hardware
  • Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …

    ... first though was to try switching to ROM2 and then checking ...
    FishFinger FishFinger December 2017 Development
  • Donate to WoSAs we edge closer to the new site switching over, we are looking at additional features, storage and the future of WoS. At the moment, the site ta…

    ... closer to the new site switching over, we are looking at ...
    Lee Fogarty Lee Fogarty December 2017 Announcements
  • ZX Spectrum Issue 2 - 12V badHey there, I'm currently attempting to fix a ZX Spectrum issue 2 that I recieved. Overall the machine was generally working when I recieved it, bu…

    ... feed 12V with a second PSU. However with D15 soldered in ... assume TR6 is bad?
    PSU I'm using is 9VDC ... 3B IIRC), using a 1A PSU didn't help either.
    Shockwav3 Shockwav3 December 2017 Hardware
  • no sound from speaker when trying to load games from tape and games are not loadingcould this be a blown component like a diode or something? it must be something simple. any help would be appreciated as im sure it wouldnt be that h…

    could this be a blown component like a diode or something? it must be something simple. any help would be appreciated as im sure it wouldnt be that hard to fix.
    digital digital December 2017 Hardware
  • Nasty vertical pattern on a 128K Toast Rack via RGBI managed to fix the busted membrane on my [url="https://www.worldofspectrum.org/forums/discussion/55755/got-myself-a-128k-toast-rack-plus-a-simple-a…

    ... of the pattern.

    Switching to IM2 when run in ...
    Ast_A_Moore Ast_A_Moore January 2018 Hardware
  • 128K +3 RepairHi guys, I need some help to diagnose a faulty 128k +3. The unit is completely unresponsive. I had tested the PSU and found odd values in it. …

    ... />
    I had tested the PSU and found odd values in ... is the connector where the psu is connected)? But which pins ...
    amateus amateus March 2018 Hardware
  • Trying to repair my old 48kAbout 30 years ago I had a spectrum 48k, it had some troubles in the end, it was very unstable when it was cold, so I had to warm it up an hour befor…

    ... it there, the spectrum, the PSU, the kepmston interface and the ...
    Repulsiv Repulsiv March 2018 Hardware
  • Tracking down a favourite Spectrum Adventure gameHello everyone - a new joiner here - looking to pick the collective Hive mind. I was an avid Spectrum gamer, and owned one of the very first 48K e…

    ... 40 years!! I remember I diode;t complete this game, but ...
    hostler hostler August 2018 Games
  • No video on Spectrum +2BI have a Spectrum +2B that I bought real cheap without any cables. I made a power adapter for it using an old ATX PSU I had laying around, it's curre…

    ... it using an old ATX PSU I had laying around, it ...
    Wooba Wooba February 2019 Hardware
  • Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…

    ... chips (increasing memory, energy, or switching on a shield). You decide ...
    IvanBasic IvanBasic April 2019 Brand new software
  • Which emulators can change machine type / hardware without reset?Which emulators can change machine type / hardware without machine-reset? I think WinZ80 v4 by Gerton Lunter can do e.g. change running emulation …

    ... emulated system/software running and switching may often just resulting in ...
    Luzie Luzie April 2019 Emulators
  • The trials and tribulations of the external tape recorderAnd you may find this a strange topic, because having been a +2 owner for the last 31-and-a bit years, it's not something I've had to deal with in th…

    ... -millimetre between utterly inaudible and diode-splittingly deafening.

    This ...
    The Mighty Dopethrone The Mighty Dopethrone May 2019 Hardware
  • Does Survivisection load & play on a real +2a?Hi All, My apologies, another question.. Would someone with a DivMMC and a +2a be able to confirm whether Survivisection runs and plays on it? …

    ... 's recapping & a new PSU so it might be the ...
    AD-RS1600i AD-RS1600i June 2019 Hardware
  • Recapping parts list needed for +2a power supplyHello I've recently acquired a +2a power supply. It works, but given the age I'd like to do some preventative maintenance and refurbish it. Does a…

    ... power supply as a replacement PSU for the +2a/+3 - or ...
    chrisgreen chrisgreen July 2019 Hardware
  • 48K Issue 3B slowly fading over 15-20 seconds, capacitor gets hot.Hi folks, Recently my much-modified* RAM testing 48K board failed with a hot/burny smell so I turned it off quickly for looking at later. Thinking…

    ... no idea what. My bench PSU with a current limiter set ...
    witchy witchy August 2019 Hardware
  • DCP Interpacks - New Old Stock Still Available (Limited)!We rarely see New Old Stock of interfaces for ZX Spectrum appear - Never mind Still being on sale from the 1980's! https://dl.dropboxusercontent.c…

    ... your Spectrum, employ Smart Home switching control via ZX Spectrum (lights ...
    matalog matalog September 2019 Hardware
  • ZX Spectrum Next Development Board in Custom Case with PSU and SD CardI am selling my Spectrum Next Development Board in a Custom Case if anyone is interested... [url="http://ebay.us/bhrQdi?cmpnId=5338273189"]Ebay li…

    I am selling my Spectrum Next Development Board in a Custom Case if anyone is interested...

    [url="http://ebay.us/bhrQdi?cmpnId=5338273189"]Ebay link to my ZX Spectrum Next[/url]
    robpearmain robpearmain September 2019 Sales
  • Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…

    ... have already had new internal switching regulator fitted (eg a Traco ...
    harriusherbartio harriusherbartio September 2019 Hardware
  • How does OVER work?I've found a short program that shows an example of the OVER command and it has me puzzled. The listing sets OVER to 1 then plots a point and draws a…

    ... it something to do with switching PAPER & INK?
    LevelUp LevelUp December 2019 BASIC
  • GZX 2020.1 ReleasedHi, I just released [url="https://github.com/jxsvoboda/gzx/releases/download/v2020.1/gzx-2020.1.zip"]GZX 2020.1[/url]. [youtube]3AOQETbfrPA[/yo…

    ... Windows
    [*]Fix 128K page switching via non-standard port numers ...
    Chip Chip March 2020 Emulators
  • Infoseek titlesOver the next week or so, I will be switching off the infoseek games list and putting in a temporary set of pages. These pages will be using the c…

    ... or so, I will be switching off the infoseek games list ...
    Lee Fogarty Lee Fogarty May 2020 Updates
  • zx spectrum 48k low -5volt raili have just received a 48k issue 3. initial tests show that all voltages are there but the -5V rail is only showing -4V. it does boot but i have tur…

    ... it worth changing the zener diode? maybe bad lower ram chip ...
    mark8bit mark8bit August 2020 Hardware
  • zx spectrum +2 cpu questionanother +2 mystery ... so just testing a +2 Z70700 issue 1.. although my power set up was a bit delboy .. PS2 power brick with modified end for the …

    ... 8.5V) , and pc atx PSU for the 5 volt feed ...
    mark8bit mark8bit August 2020 Hardware
  • Screen corruption with devices on edge connector (grey +2)Hi, I've recently done a full capacitor replacement and replaced all 16x DRAM chips on my grey +2. Prior to this I would get a corrupted screen…

    ... alternative like a 5 volt switching regulator with higher output?
    Megatron-UK Megatron-UK August 2020 Hardware
  • WiP New Utility TAPonDSKThere are a few utilities that transfer tape contents to +3 disk but most, if not all, require manual intervention to change the loader and/or rename…

    ... .
    | -b switch off bank switching, useful for some older games ...
    TomD TomD August 2020 Brand new software
  • Ferrite beads in power cords?So I am seeing these modern psu units with ferrite beads on both ends, just like this: [url=https://imgbb.com/][img]https://i.ibb.co/PFQT4n1/9fd19…

    ... I am seeing these modern psu units with ferrite beads on ...
    Renegade Renegade September 2020 Hardware
  • What are editor scratchpads?I've been reading and experimenting with 128 bank switching and using the shadow screen. The technical reference [url="https://worldofspectrum.or…

    ... and experimenting with 128 bank switching and using the shadow screen ...
    KrazyKattapilla KrazyKattapilla September 2020 Assembler
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