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<1…17181920212223…34>
  • Most accurate display on emulatorWhich Windows emulator has the most accurate display. I am making a game and one of the tiles is not showing correctly on an real spectrum +2 machin…

    ... on machines where a RGB signal is being used, it means ... can be forgotten (the video signal bandwidth and hence level of ...
    Ast_A_Moore Ast_A_Moore October 2017 Emulators
  • 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…

    ... to be in the baseband video signal range (from 5Hz up to ... in use), then a composite video signal may well be affected :(
    1024MAK 1024MAK October 2017 Hardware
  • 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…

    ... mode noise to interfere with video signal.

    If this helps ...
    ingo ingo October 2017 Hardware
  • What clone for the USA?Living in America, so fellow ex-pats might be able to answer this. Yes, I know I can do a search but why not ask first as knowledge beats enquiries. …

    ... the only problem is the video output / screen. Ideally you ... line, 15625kHz, 50Hz PAL video signal. It is unlikely that you ... when connected via composite video (external video, normally on a yellow ... line, 15625kHz, 50Hz PAL video signal, that could be used to ...
    1024MAK 1024MAK November 2017 Chit chat
  • 48k packed up after cap changeHi all, I'm relatively new to the Sinclair world, my 8-bit repairs in past was lurking in the dark sides of Acorn, Amstrad and Commodore! I've got…

    ... screen RAM and creates the video signal). The Z80 CPU is not ...
    1024MAK 1024MAK December 2017 Hardware
  • 48k packed up after cap changeHi all, I'm relatively new to the Sinclair world, my 8-bit repairs in past was lurking in the dark sides of Acorn, Amstrad and Commodore! I've got…

    ... screen RAM and creates the video signal). The Z80 CPU is not ... /> Watching a zx.zigg.net video he noted that a failing ...
    dozey_dustman dozey_dustman December 2017 Hardware
  • ZX Spectrum Issue 4S composite video fuzzy (horizontal blur)Dear people of WoS, Thank you very much for taking the time to read. I have an Issue 4S I recently acquired and planned to fix up as a gift for a…

    ... they are processing "baseband" video signals of up to about ... type (these are fast video amplifier transistors). MPS2369 are ... also compare the ULA monochrome video output signal /Y (ULA pin ... underside) with the composite video signal on TR2 emitter or edge ...
    1024MAK 1024MAK January 2018 Hardware
  • ZEsarUX 6.1 BETAHi I have uploaded a new ZEsarUX BETA version 6.1. You can download it from the usual beta url: https://sourceforge.net/projects/zesarux/files/…

    ... used to generated the composite video signal.

    On a 16K ...
    rga24 rga24 February 2018 Emulators
  • ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …

    ... able to lock onto the signal.

    I get it ... .

    I suspect the video signal for the initial boot and ... actually be different to the signal after the BIOS has been ...
    colonel32 colonel32 May 2018 Hardware
  • Better keyboard = better sales ?Just a random thought. I want to start this by saying although I did not have a + model new, I was never really a fan of this keyboard as it was n…

    ... with a link so the video never made it to the ... poor picture when using composite video via the edge-connector [I ... boards did not have the video signal at the edge-connector. Something ... type leads perhaps for the video signal and / or not realising the ...
    spider spider August 2018 Sinclair Miscellaneous
  • 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…

    Here is a video of the result with S-video signal. Pretty nice :-)
    https://youtu.be/g7OkWTfyed8
    repetto74 repetto74 September 2018 Hardware
  • Oric Atmos HelpMaybe a bit of a long shot but there are enough skilled people here, so hopefully I can get some thoughts please. OK I have an Oric Atmos here, it…

    ... analogue TV system used positive video modulation, whereas in the ... we use/used a negative video modulation. This very likely ... support components. It inverts the video signal. [You find a similar ... remove the video modification and return the video circuit back ...
    1024MAK 1024MAK September 2018 Chit chat
  • 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…

    ... ) convert the 50 Hz input video signal into a 25 Hz one ...
    Ast_A_Moore Ast_A_Moore September 2018 New game ideas
  • Oric Atmos HelpMaybe a bit of a long shot but there are enough skilled people here, so hopefully I can get some thoughts please. OK I have an Oric Atmos here, it…

    ... :

    1. The composite video signal feeding the modulator does not ... cursory Google does suggest the signal is too weak anyway.
    spider spider September 2018 Chit chat
  • Oric Atmos HelpMaybe a bit of a long shot but there are enough skilled people here, so hopefully I can get some thoughts please. OK I have an Oric Atmos here, it…

    ... :

    1. The composite video signal feeding the modulator does not ... suggest the signal is too weak anyway.[/quote]
    The video circuitry ... ohm load of a composite video circuit. So this is not ...
    1024MAK 1024MAK September 2018 Chit chat
  • Oric Atmos HelpMaybe a bit of a long shot but there are enough skilled people here, so hopefully I can get some thoughts please. OK I have an Oric Atmos here, it…

    ... :

    1. The composite video signal feeding the modulator does not ... suggest the signal is too weak anyway.[/quote]
    The video circuitry ... ohm load of a composite video circuit. So this is not ... strong enough to drive the video-in circuitry in a tv ...
    spider spider September 2018 Chit chat
  • 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…

    ... having troubles with this S-video mod unfortunately. I decided ... day I had a bad video signal and I though the ... not have any video signal at all for s-video so I ... has fried into the video circuitry of the Spectrum ... just no luck and no signal at all. I do ...
    repetto74 repetto74 September 2018 Hardware
  • 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
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Latest Posts

  • I am currently watching.....
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