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<1…18192021222324…34>
  • 128k sound should be mono or stereo?So I keep reading arguments 'for' and 'against' but I never seem able to make up my mind. On one side it's a fact that no 128k model ever had ster…

    ... , or blue component of the video signal. It would also be trivial ...
    Ast_A_Moore Ast_A_Moore September 2018 Sinclair Miscellaneous
  • 128k sound should be mono or stereo?So I keep reading arguments 'for' and 'against' but I never seem able to make up my mind. On one side it's a fact that no 128k model ever had ster…

    ... , or blue component of the video signal. It would also be trivial ...
    Renegade Renegade September 2018 Sinclair Miscellaneous
  • My 128k +2 Clean upI decided to pull my old 128k +2 and 48k rubber key out of the attic this weekend. Not been switched on in 30 years or so. The rubber key is dead …

    ... . It already has the composite video output. The sound mod is ... ) of money. However, the composite video signal is present on Pin 1 ...
    Ast_A_Moore Ast_A_Moore December 2018 Hardware
  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…

    If the signal is a composite video signal, nothing can get you back ... quality limitations of the composite video signal. The original conversion to composite ... parts of the original composite video signal were supposed to be colour ...
    1024MAK 1024MAK December 2018 Hardware
  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…

    When it comes to analogue video signal processing, there are many things ... . For the same reasons, the video output from unmodified machines will ...
    1024MAK 1024MAK January 2019 Hardware
  • Monochrome monitorsSilly question perhaps, but thinking back were there any games specifically written to be used with a monochrome monitor? Is it true that monochro…

    ... the video signal is carried over to the monitor—a composite video signal will ...
    Ast_A_Moore Ast_A_Moore June 2019 Games
  • Monochrome monitorsSilly question perhaps, but thinking back were there any games specifically written to be used with a monochrome monitor? Is it true that monochro…

    ... word) about composite video.
    A monochrome composite video signal is equal in ... mixed into the monochrome composite video signal that system limitations show up ... from the “monochrome” brightness/contrast video signal. Hence is far better. But ...
    1024MAK 1024MAK June 2019 Games
  • Composite out, but without a mod?Through [url="https://faqwiki.zxnet.co.uk/wiki/ZX_Spectrum_16K/48K_edge_connector#Video_Outputs"]this[/url] page, it sounds like I can keep my ZX Spe…

    ... pick-up the composite video out signal from the expansion connector ... components to polish up the signal?[/quote]
    It’s ... Spectrum’s non-standard composite video signal. Sometimes it’s possible ... in series with the composite video signal, but don’t expect ...
    Ast_A_Moore Ast_A_Moore June 2019 Hardware
  • Composite out, but without a mod?Through [url="https://faqwiki.zxnet.co.uk/wiki/ZX_Spectrum_16K/48K_edge_connector#Video_Outputs"]this[/url] page, it sounds like I can keep my ZX Spe…

    ... a colour composite signal and a monochrome signal are available ... there will be no video signals on the expansion ...
    The monochrome (/Y) video signal on the edge-connector would ... />
    The colour composite video signal is already buffered, so may ...
    1024MAK 1024MAK June 2019 Hardware
  • Composite out, but without a mod?Through [url="https://faqwiki.zxnet.co.uk/wiki/ZX_Spectrum_16K/48K_edge_connector#Video_Outputs"]this[/url] page, it sounds like I can keep my ZX Spe…

    ... />
    [quote]The monochrome (/Y) video signal on the edge-connector would ... />
    [quote]The colour composite video signal is already buffered, so may ... a specific ground for the video signal?)? And 100uF? That seems quite ...
    georgedb georgedb June 2019 Hardware
  • Composite out, but without a mod?Through [url="https://faqwiki.zxnet.co.uk/wiki/ZX_Spectrum_16K/48K_edge_connector#Video_Outputs"]this[/url] page, it sounds like I can keep my ZX Spe…

    ... applies to the ‘Y’ monochrome video signal.

    Sorry, maybe ... my comments about the composite video a little better. What ... is, with some TVs or video equipment, as they already ... capacitor, then the composite video output from the ZX Spectrum ...
    1024MAK 1024MAK June 2019 Hardware
  • Monochrome monitorsSilly question perhaps, but thinking back were there any games specifically written to be used with a monochrome monitor? Is it true that monochro…

    ... word) about composite video.
    A monochrome composite video signal is equal in ... mixed into the monochrome composite video signal that system limitations show up ... from the “monochrome” brightness/contrast video signal. Hence is far better. But ...
    Renegade Renegade July 2019 Games
  • Magnum Light Phaser supportHello I've been hoping as well as searching Emulators that support the Magnum Light Phaser as my original ZX Spectrum 2A+ James Bond Action Pack won'…

    ... have to convert the analogue video signal to a digital form. Stream ...
    1024MAK 1024MAK July 2019 Emulators
  • Recreated Spectrum .What do we get for the "now" (Aug 2017) best retail price of around £35?Well best/ cheapest retail prices can vary a bit so I thought it best to be specific. At this £35 price ,is it a good deal and what do we get ? A…

    ... separate out the audio and video signal.
    ------------------------------------------------------------------------------------------------------------------------------------------------

    In the ...
    harriusherbartio harriusherbartio August 2019 Hardware
  • Better graphic in new ZX gamesLCD TV (ideally full hd) used with ZX Spectrum enable using new graphic modes with 2x higher vertical resolution, more colors and without attribute c…

    ... changes the properties of the video signal or anything (not possible with ...
    Hikaru Hikaru September 2019 New game ideas
  • Better graphic in new ZX gamesLCD TV (ideally full hd) used with ZX Spectrum enable using new graphic modes with 2x higher vertical resolution, more colors and without attribute c…

    A standard video signal isn't likely to bounce ...
    AndyC AndyC September 2019 New game ideas
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

    ... a great job handling the video signals better than modern LCD ... . Maybe I'll do a video on monitor types in a ... directly, I'm not a video signal expert, but I don't ...
    llopis llopis January 2020 Hardware
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

    ... know that CVBS (and S-video) signal undergo an enhancement treatment by ... any make-up to the signal source is also a ... s-video signals coming from different machines.
    128K CVBS signal ... looks better than 48K CVBS signal because of the ...
    Renegade Renegade January 2020 Hardware
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

    ... directly, I'm not a video signal expert, but I don't ... YUV but it seems the signal coming from the Spectrum can ...
    Renegade Renegade January 2020 Hardware
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

    ... directly, I'm not a video signal expert, but I don't ... it to S-Video, rather than RGB. The luma signal stays as ... ) back into a valid chroma signal. Not sure if it’s ...
    Ast_A_Moore Ast_A_Moore January 2020 Hardware
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

    ... directly, I'm not a video signal expert, but I don't ... YUV but it seems the signal coming from the Spectrum can ... that.[/quote]
    The YUV video signals inside a ZX Spectrum ... component video signals that some TVs have inputs for. The signal levels ...
    1024MAK 1024MAK January 2020 Hardware
  • Should I get a NEXT?Despite my having wanted one almost since I heard about it, I'm beginning to wonder whether it would be an extravagance, 'cos its sure to cost a fair…

    ... accurate processor AND generate a video signal AND generate three channel sound ...
    1024MAK 1024MAK March 2020 Chit chat
  • Miscellaneous ZX81 stuffI was not sure where to put this . As it is not Speccy related I had a dilemma . Should it go in Chit Chat . But then I had a better idea : if I call…

    ... to invert the /Y video signal on pin 16 underside of ... the normal ZX Spectrum composite video signal through a ZX8CCB, as even ... white picture, the colour carrier signal is still present. And ... will completely remove the carrier signal.

    [b][i ...
    1024MAK 1024MAK March 2020 Sinclair Miscellaneous
  • Miscellaneous ZX81 stuffI was not sure where to put this . As it is not Speccy related I had a dilemma . Should it go in Chit Chat . But then I had a better idea : if I call…

    ... manual says "Integrate a small video jack (3.5) between the ...
    [*]Yellow wire for the video signal from the ULA
    [*]Black ... ][*]Brown wire for the composite video output
    [*]Black wire for ...
    1024MAK 1024MAK March 2020 Sinclair Miscellaneous
  • 48k Spec with composite video mod, screen adjustment possible?I've had a 48k Speccy with a composite video mod for a few years now, and although it works perfectly otherwise, the screen isn't centered correctly …

    ... time between the horizontal synchronisation signal pulse (part of the ... the visible part of the video signal. And if anything, it’ ... not like the non-broadcast video signal generated by the Spectrum. But ... similar in terms of the signal timing.

    [b ...
    1024MAK 1024MAK August 2020 Hardware
  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…

    ... in the quality of the video signal.
    In my case, when ...
    Renegade Renegade November 2020 Hardware
  • ZX80 in a BoxAfter putting a [url="https://worldofspectrum.org/forums/discussion/57916/spectrum-in-a-box#latest"]Spectrum in a Box[/url] a while ago, I thought it…

    ... the two wires for improved video output (white and grey) from ... horizontal tearing. I checked the video signal with an oscilloscope and found ... own extension to the original video circuitry, which provides an improved ...
    xelalex xelalex January 2021 Hardware
  • Spectrum +2 grey to VGA and GBS-8200Hi friends, need your help with a cable i am trying to make it work, using this link https://cygnus.speccy.cz/popis_propojeni_zxs128kplus2_a_g…

    ... to test the comp. sync video signal? if this is faulty how ...
    xaris_sm xaris_sm April 2021 Hardware
  • Spectrum +2 grey to VGA and GBS-8200Hi friends, need your help with a cable i am trying to make it work, using this link https://cygnus.speccy.cz/popis_propojeni_zxs128kplus2_a_g…

    ... the status of my composite video signal (pin 1 on the ... (ground) the signal was not good (the signal was distorted black ... /> good news, fixed the composite video signal, now is having color and ...
    bad news, no signal and black signal for the GBS-8200 ...
    xaris_sm xaris_sm April 2021 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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