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  • Quirky nerdy hardware quiz time[b]Quirky nerdy hardware quiz time[/b] [list=1][*]How many transistors are on the issue one ZX Spectrum PCB? [color=#FFFFFF].[/color] [*]Which d…

    ... ) that the ZX Spectrum +2A/+2B/+3/+3B computers can be ...
    1024MAK 1024MAK December 2020 Sinclair Miscellaneous
  • GB Tetris Emulator TEMU For Sinclair Zx Spectrum +2A +2B +3 Hello, This is my lame attempt to emulate GB Tetris on a zx For everyone tranquility, please never include tetris rom in distribution package. …

    Hello,

    This is my lame attempt to emulate GB Tetris on a zx
    For everyone tranquility, please never include tetris rom in distribution package.

    Here:
    https://we.tl/t-AEhTpnE6hm

    [img]https://i. ...
    4Ocrisis 4Ocrisis December 2020 Games
  • What's wrong with this Spectrum +2B?Watch this video: [url="https://photos.app.goo.gl/uRmuzj8hRhGPqqrQ9"]https://photos.app.goo.gl/uRmuzj8hRhGPqqrQ9[/url] Explanation: every time I …

    Watch this video:
    [url="https://photos.app.goo.gl/uRmuzj8hRhGPqqrQ9"]https://photos.app.goo.gl/uRmuzj8hRhGPqqrQ9[/url]

    Explanation: every time I reset the computer with NEW or I change the border colour, the level of sound changes ...
    javier2112 javier2112 March 2021 Hardware
  • Two new spectrums arrived. One no video.Got a +2 and a Toastrack arrived today. Toastrack was actually in good condition, little wear, though a little dirty. Worked well on first power up, …

    ... video sync, and the video modulator is gone and someone has ...
    cj7hawk cj7hawk September 2021 Hardware
  • Amstrad Spectrum Keyboard Membranes.Who sells replacement keyboard membranes for the +2a, +2b and +3? Thanks David

    Who sells replacement keyboard membranes for the +2a, +2b and +3?

    Thanks
    David
    cj7hawk cj7hawk November 2021 Hardware
  • zx spectrum +2A / +2B no clock signal or video display / gate array dead ?scratching my head with this sick specie .. it is a issue 4 .. i was hunting for R45 that goes between the clock signal of cpu and gate array,, but i…

    scratching my head with this sick specie .. it is a issue 4 .. i was hunting for R45 that goes between the clock signal of cpu and gate array,, but i believe this has been removed from this revision.. the clock also goes to the 74HCU04 and off to the cpu ( ...
    mark8bit mark8bit November 2021 Hardware
  • Building a ZX Spectrum and I have some voltage questionsI've posted about this before looking for parts, but now I've found all the hard-to-get stuff (thank you Retrolium!). So I figured new questions, new…

    ... 'm not installing an RF Modulator)
    +5V to Lower RAM ...
    DistantStar001 DistantStar001 April 2022 Hardware
  • Exact emulation of the Snow effectAs the original post on another forum is outdated, and for those who don't know about that forum, I duplicate this info here: At the beginning of …

    ... Amstrad's black machines (+2A/+2B/+3/...) and on any ZX ...
    weiv weiv October 2022 Emulators
  • pc 2 zx, problems!!! :(Ok I've recently bought a cd (not a copy either, I got it from HMC in chester) containing some 6000 games. Now as my spectrum was damaged some 2 yea…

    ... a ZX Spectrum +2A or +2B).

    I have had ...
    Tim Hingley Tim Hingley December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    ... any image probably the RF modulator is dead. Sorry for my ...
    Anonymous Anonymous December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    carlos, i think this could it be. i did all checks, waiting for an image on the modulator - check the rgb-output tomorrow!
    mark mark December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    If it's just the modulator, try to get the thing ... know it's "just" the modulator. I wouldn't know how ...
    Alessandro Tommasi Alessandro Tommasi December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    ... , that you only blow the modulator (9 or 12V feeding) and ... think i will replace the modulator by the one of the ... a museum with a broken modulator, if anyone ever gets interested ...
    mark mark December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    Maybe you can replace the broken modulator by one of an old VCR.
    Or try to repair the original. Most modulator are based on a IC, like LM1889 or something similar. In this case if the modulator is broken, sure the IC is the cause.
    Anonymous Anonymous December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    Watch out! Modulator can be OK. Check the ... 't work and signal to modulator is too weak. But worse ... is NOT generated at all. Modulator has no signal on input ...
    zoom zoom December 2001 Sinclair Miscellaneous
  • Old Computer Speccy mentionMany of you may know about this already but there is a nice article on the speccy on a French (English Speaking) site called old-computers.com. There…

    I've just noticed they say and the FAQ says the +2A was made in Hong Kong and the +2B was made in Taiwan. Isn't it the opposite? The baud rate of the spectrum is 1500 not 1200. There's some interesting talk on faulty ram chips and holding back the 128.
    Anonymous Anonymous November 2001 Sinclair Miscellaneous
  • Old Computer Speccy mentionMany of you may know about this already but there is a nice article on the speccy on a French (English Speaking) site called old-computers.com. There…

    I think you're right there. My +2B was certainly made in China. The tape I/O is listed as 1200 baud in some places and 1500 in others. I'm not sure which is true... And that RAM chips thing was certainly weird - very inventive, our Sir Clive!
    Fuzzbucket Fuzzbucket November 2001 Sinclair Miscellaneous
  • Where are you from / who are you / do you still use the real SpectrumJust three questions to see how divers the Spectrumworld is and how many users are still around. If you want to stay anonymous, just answer the last …

    1) Ireland
    2) John Barrett (I thought it was time I came out of the nickname closet!)
    3) Indeed. A +2B. Actually I'm not using it at the moment 'cos its a bit broken...
    Fuzzbucket Fuzzbucket November 2001 Chit chat
  • Where are you from / who are you / do you still use the real SpectrumJust three questions to see how divers the Spectrumworld is and how many users are still around. If you want to stay anonymous, just answer the last …

    1. Cardiff, UK
    2. Rob
    3. Yup, any of the following ...

    rubbery 48k
    speccy + (permenantly hooked up to my telly)
    speccy 128
    speccy +2 Gray
    speccy +2A
    speccy +2B
    speccy +3
    Anonymous Anonymous November 2001 Chit chat
  • Where are you from / who are you / do you still use the real SpectrumJust three questions to see how divers the Spectrumworld is and how many users are still around. If you want to stay anonymous, just answer the last …

    Amending my earlier post - some recent hostile takeovers:

    1) Ireland
    2) John Barrett
    3) Yeah, baby! 48k(rubber keys), 2x48+, 128+2 (grey case) and a +2B...
    Fuzzbucket Fuzzbucket December 2001 Chit chat
  • Broken RF outputI have one of the original 128K machines and the RF output is knackered (The screen rolls uncontrollably like if you messed with the vertical hold on…

    ... think you could nick the modulator out the Electron , I have ... to the Electron's RF modulator and I'm not sure ...
    Dean Lowery Dean Lowery September 2001 Sinclair Miscellaneous
  • Broken RF outputI have one of the original 128K machines and the RF output is knackered (The screen rolls uncontrollably like if you messed with the vertical hold on…

    The RF modulator is a simple enough piece ...
    Fuzzbucket Fuzzbucket September 2001 Sinclair Miscellaneous
  • Amstrad CPC Monitor Lead I know this is a speccy site (and the spectrum is no.1 as far as I'm concerned) but I got an Amstrad CPC and green screen monitor included with a sp…

    ... Amstrad did make a TV modulator box (well, more like a ...
    Anonymous Anonymous July 2001 Sinclair Miscellaneous
  • Spectrum +3 Sound problems.I recently acquired a Speccy+3 but there is a problem with it - the sound output through the TV is badly distorted, especially lower notes. Both the…

    RGB socket? I don't have a lead to try it, but the sound was still distorted through the 3.5mm jack socket when I connected the audio to my hifi, so its not a modulator problem.
    Refrenz Refrenz June 2001 Sinclair Miscellaneous
  • 128 +2 video connections.I have just got my hands on a Spectrum 128 +2 grey model all in working order, what I need to know is if I take a signal from the CVBS Composite Vid…

    ... the input of the RF modulator.

    The audio can ...
    Keith Coles Keith Coles April 2001 Sinclair Miscellaneous
  • Spectrum kaput! HELP!Hi! I've had a Speccy since 1988. The only problem is that it went dead 6 years ago! ...Or atleast it seems to have.If I switch it on now, all I get…

    ... unfortunately due to the TV modulator i cannot close the blackbox ...
    Mikie Mikie April 2001 Sinclair Miscellaneous
  • Replacement Modulator for a issue 4 board Spectrum+???Anyone know where I may procure such a thing??? The one in my current machine starts up with the picture tearing and fading (As if the composite sig…

    ... />
    I have bypassed the Modulator and am using a composite ...
    Keith Coles Keith Coles April 2001 Sinclair Miscellaneous
  • Replacement Modulator for a issue 4 board Spectrum+???Anyone know where I may procure such a thing??? The one in my current machine starts up with the picture tearing and fading (As if the composite sig…

    ... an Alps Audio/Video RF Modulator for 13 quid which I ...
    Martin Martin April 2001 Sinclair Miscellaneous
  • RGB or Composite out of a Spectrum Plus?Anyone know of a way? I dont mind soldering ect. I also heard that their was composite on the expansion bus(Anyone confirm?) Anyone know of a way?

    ... signal out by bypassing the modulator. Two wires enter it from ... . Get the ground from the modulator ground.

    It's ...
    Alessandro Tommasi Alessandro Tommasi March 2001 Sinclair Miscellaneous
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