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  • Recapping your SpeccyHas anyone ever done it? I have several vintage amps, tuners, cassette decks that have been recapped. So just wondering are there many on WOS who ha…

    ... ), a 10uF/16V capacitor is a 10uF/16V capacitor.

    For ... ] as a whole. For example video generation included in ULA vs ... . dedicated video chip. Or rubber keys + foil ...
    RetroTechie RetroTechie October 2010 Hardware
  • Salamander - 2 YS reviewsKonami's Salamander was reviewed in issue 2/88 of Your Sinclair. The rating: 4. Then in issue 12/88 it was reviewed again and scored 8(!). Why YS rev…

    ... graphics are an improvement on the Speccy. In that video you can ...
    joefish joefish November 2010 Games
  • Running a Spectrum in the USI didn't realise how much hastle it was to set up a UK PAL Spectrum in the US. [url]http://wn.com/List_of_ZX_Spectrum_games[/url]. I knew about the …

    ... ...

    As for composite video mod: 'tape apart ZX Spectrum ... about this crystal replacement jobbie?... sounds intriguing...?[/QUOTE]Replacement of a 4 ... for NTSC). Gives a PAL video signal but with NTSC-frequency ...
    RetroTechie RetroTechie November 2010 Sinclair Miscellaneous
  • How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…

    ... you do the comp.video mod with straight-through ... br /> If you include a capacitor in output signal, DC offset ... best is a comp.video mod where entire signal ... . Then again, analog video circuitry isn't my ... /monitor that takes composite video directly. Don't know ...
    RetroTechie RetroTechie November 2010 Hardware
  • How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…

    ... 100uF capacitor left and thought I would apply the "simple video ... spectrum-composite-video-mod.html[/URL] in that the Capacitor sits between ... the boards Video input and the ... don't know what the capacitor would do, I know ...
    hedge hedge November 2010 Hardware
  • NEW TO SINCLAIR; HELP ON BUYING SPECTRUM 48khey, i have recently discovered the spectrum while surfing the internet and have quickly become obsessed in obtaining one. One problem : I am very kn…

    ... /2008/11/zx-spectrum-composite-video-mod.html"]http://womblesretrorepairshack.blogspot ... /2008/11/zx-spectrum-composite-video-mod.html[/URL] (almost deserves ... you include a 100uF/10V capacitor (+ to Spectrum insides, - to center ...
    RetroTechie RetroTechie December 2010 Sinclair Miscellaneous
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... well. Small improvement are needed
    like keyboard, video output put together ...
    kpuchatek kpuchatek December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ...
    SE Basic is replacement ROM. Just like the original ... written for the existing video hardware nothing would ... is the most advanced video display processor I ... ULAplus and the Timex video modes (which include ... the ability to switch video modes in the middle ...
    chev chev December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... />

    SE Basic is replacement ROM. Just like the original ... is written for the existing video hardware nothing would use it ... V9958 is the most advanced video display processor I know of ... of ULAplus and the Timex video modes (which include an 8x1 ...
    Rebelstar Rebelstar December 2010 Hardware
  • K-MouseOK, Got the K-mouse with the video out and on my old wide screen tv it looks ok, very liney. Maybe something to do with the very thin video wire yo…

    ... connected it to the yellow video input socket on the LH ... , and there was a slight improvement in picture quality, but not ...
    Battle Bunny Battle Bunny December 2010 Sinclair Miscellaneous
  • zx81 rf outputHi All I'm not sure if this is an appropriate forum for the zx81, however I'll ask anyway;) I've connected my zx81 up to a mid 90's color tv. I can…

    ... I wonder if the composite video mod could be done ... , but beware that the video signal which goes into the ... with straight ULA -> comp. video input on TV), and sometimes ... br />
    Above transistor buffer (+ capacitor if used) fits comfortably inside ...
    RetroTechie RetroTechie January 2011 Hardware
  • zx81 rf outputHi All I'm not sure if this is an appropriate forum for the zx81, however I'll ask anyway;) I've connected my zx81 up to a mid 90's color tv. I can…

    ... My TV also preferred a capacitor in the signal (+ to ... straight ULA -> comp. video input on TV), and ... />
    Above transistor buffer (+ capacitor if used) fits comfortably inside ... cirquitry with a 100uF capacitor to the video out. Excellent picture ...
    gtsamour gtsamour January 2011 Hardware
  • repaired a 48K, yay :)I just managed to repair one 48K. After socketing all eight lower RAM chips (hard work!) and replacing few of them, it showed the familiar "Sinclair …

    ... ULA and the requirements for video timing, etc.

    In ... [/I] useful.

    Nb. Replacement 4116's aren't too ...
    RST#08 RST#08 January 2011 Hardware
  • Sound card mysteriously vanishesSince a power outage my on board sound card hasn't been showing up in lspci or anything. It's as if it's not there. And I had a look in my BIOS since…

    ... the cmos battery will need replacement. These are generally CR2025 coin ... Manager. Now look for Sound, Video and game controllers. If their ...
    Hercules Hercules January 2011 Chit chat
  • Picture interference on red areas.I recently got a 48K Speccy off eBay, did a composite mode and it seemed to work OK, but then my TV had to go off for repair so I didn't use it for a…

    ... electrolytic decoupling capacitors around the video chip are suspects. As fast ... safely try a known good capacitor in parallel with existing ones ...
    joefish joefish January 2011 Hardware
  • Picture interference on red areas.I recently got a 48K Speccy off eBay, did a composite mode and it seemed to work OK, but then my TV had to go off for repair so I didn't use it for a…

    ... around it. Also the electrolytic capacitor alongside the ULA. But no ... 25V rated capacitor across C44 and it made a big improvement to ...
    joefish joefish February 2011 Hardware
  • A thousand core CPU?Maybe this is old news to most people on here, but according to: [url]http://www.zdnet.co.uk/news/emerging-tech/2010/12/25/intel-why-a-1000-core-chi…

    ... many monitors you have connected, video RAM is directly linked to ... simple cannot have too much video RAM.[/QUOTE]

    ... sense, using the (very fast) video RAM for texture storage and ... 90% of the possible performance improvement with just 256 cores. Any ...
    ewgf ewgf February 2011 Chit chat
  • 2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…

    ... =RetroTechie;514443]Do the composite video mod? That way you're ... I thought! :cry: Is there replacement for the rom?? :sad:
    Diogo Diogo February 2011 Hardware
  • Multiface 1 (Romantic Robot) RepairHello there my fellow ZX'ers! recently I got an Interface 1 + MicroDrive from a friend and since then I have been having awesome geeky moments in fr…

    ... lot of them needed memory replacement repairs, alas one had suffered ... not to see a single capacitor in the whole design! no ...
    Zetr0 Zetr0 March 2011 Hardware
  • Question about QL composite modI am servicing my two QL machines (capacitor replacement, pcb and plastics cleaning, microdrives head cleaning, 7805 replacement etc). I already fin…

    ... see if there's any improvement.

    These pages might ... : I guess the (older) VCR video circuits are more tolerant of ...
    RST#08 RST#08 March 2011 Hardware
  • Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …

    ... external modification to achieve 2 video-rams and get (I suspect ... upgrade is designed originally as replacement of original 32kB RAMPACK ( add ...
    velesoft velesoft March 2011 Hardware
  • Maketzx...Whats the state of play?Been out of the whole emulation bit for...a while :) But, back in the saddle, ready to transfer some more tapes.....except...maketzx doesnt seem to w…

    ... (or .pzx or any other improvement/replacement) be developed in the future ...
    Ralf Ralf April 2011 Emulators
  • Maketzx...Whats the state of play?Been out of the whole emulation bit for...a while :) But, back in the saddle, ready to transfer some more tapes.....except...maketzx doesnt seem to w…

    ... .pzx or any other
    improvement/replacement) be developed in the future ...
    Philip Kendall Philip Kendall April 2011 Emulators
  • Maketzx...Whats the state of play?Been out of the whole emulation bit for...a while :) But, back in the saddle, ready to transfer some more tapes.....except...maketzx doesnt seem to w…

    ... (or .pzx or any other improvement/replacement) be developed in the future ...
    chev chev April 2011 Emulators
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... ] for your quick answer. DRAM replacement is the easier fix. Found ... TV Modulator doin? VIDEO FIX
    * Rip of Video RAM 4116 and ...
    Mobutu Mobutu April 2011 Hardware
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... that.[/QUOTE]
    The video circuitry isn't very picky ... be used directly by the video circuitry. Then with DC- ... of a drop-in replacement for the LM1889 video encoder, one that ... mini-board containing replacement IC with a few wires). Video buffer transistors ...
    RetroTechie RetroTechie April 2011 Hardware
  • So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…

    ... />
    That's down to video timings. The original Speccy has ... second clock to generate the video sync because 3.5Mhz doesn ... clock that generates the right video sync for PAL.
    ... range of modifications possible for improvement... Not quite sure which one ...
    chev chev April 2011 Sinclair Miscellaneous
  • RGB to S-Video and Composite Adapterif I produced a dongle that generated composite and s-video from the RGB socket on +3 and Black +2 spectrums would anyone be interested? I'm thinkin…

    ... that generated composite and s-video from the RGB socket ... three output connectors, Composite, S-video and a speaker jack.
    video and RGB)

    ... was previously planning an S-video modulator replacement kit to solder inside ...
    rich_chandler rich_chandler May 2011 Hardware
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... coupled with ULAplus and a replacement enhanced (and legal) ROM. Winner ... Z80 @ 28MHz,
    Yamaha V9958 Video Display Processor,
    Yamaha YMF262 ...
    Rebelstar Rebelstar May 2011 Development
<1…18192021222324…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
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    John Elliott on April 21
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    rich_chandler on April 21
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HitBox

Word Docs Hits
capacitor 1.5K 2.2K
replacement 3.3K 3.8K
video 19.7K 27.4K
improvement 1.5K 1.6K

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