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Search Again :: Adv Search 152 results in 0.000s
<123456>
  • ZX Spectrum 128 +2 and C= 1084S monitorHi All ! I am trying to connect all my old computers to one monitor - Commodore 1084S. It has really great picture and everything but lacks a SCART …

    ... of RGB connectors and normal Chroma/Luma inputs.
    When I ...
    Tom-Cat Tom-Cat May 2004 Sinclair Miscellaneous
  • Sinclair QL on a Commode 1702Anyone ever build a cable for the QL RGB to use on the Commode 1702? I built one that gives a mono image last night but can't figure out the pinout f…

    ... for luma and one for chroma but I played around a ...
    beanz beanz August 2010 Sinclair Miscellaneous
  • How looks a Spectrum shown in a TFT VGA monitor?Some people has just asked me if a cheap Dealextreme VGA Box is capable of showing a decent picture from a ZX Spectrum. Well, I've just modded one r…

    ... resolution output (up to 1280x1024), chroma filters, bright, contrast,... and many ... of this monitor), changing some chroma-related params, and having pressed ...
    mcleod_ideafix mcleod_ideafix October 2010 Hardware
  • +3 s-video outAs I mentioned in another thread recently I use my +3 through a TV card, there is therefore no way to make use of the RGB output, and the composite s…

    ... supplying either composite video, or chroma (colour signal).

    The ... buffers one for the composite/chroma and one for the luma ... from being mixed with the chroma signal. The TEA2000's output ... becomes chroma only, and we tap off ...
    guesser guesser December 2010 Hardware
  • Grey +2 video output and oddities.I've been experimenting with one of the above that I acquired years ago, but had just been buried at the back of a cupboard. I've connected it up to…

    ... video, with or without the chroma signal separated.

    Anyway ...
    Zorn Zorn January 2012 Hardware
  • Spectrum 128K: distorted picture with composite to vga converterI'm trying to get my 128K Spectrum (toastrack) to work with a vasmon3 composite to vga converter, but all I get is a distorted image on the VGA monit…

    ... tt.
    The blanking part (chroma) is about 300mV (=conforming to ...
    Knik Knik April 2012 Hardware
  • Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…

    ... .4Mhz oscillator that drives the chroma carrier wave may be a ...
    RobeeeJay RobeeeJay March 2013 Hardware
  • ZX48 svideo modI have modded a ZX48 to have svideo output. The end of C65 that goes to TR2 (its an Issue 2 zx 48 ) has been lifted to get Chroma. Luma is taken fro…

    ... ) has been lifted to get Chroma. Luma is taken from where ... end is connected to ground. Chroma and luma is fed to ... up by the tv, though Chroma is not.
    Any suggestions ...
    Johan1973 Johan1973 October 2013 Hardware
  • Issue 1 oddityHello to everybody, I have a very first under my hands - a broken Issue 1. Apart from the classic "broken lower RAM" syndrome which will be easily t…

    ... . Voltages are correct, pin 3 (chroma bias) shows a tad over ...
    Falco-F8L Falco-F8L November 2014 Hardware
  • Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …

    ... every IC other than the chroma encoder mounted in a socket ... and 12 V (at the chroma encoder) rails the see whether ...
    Zorn Zorn February 2016 Hardware
  • New ZX81 Game: Lunares InsaneumNot a Spectrum game but a conversion of the early Ocean Spectrum title Transversion. Link is [url="https://jonathan-cauldwell.itch.io/lunares-insane…

    ... -insaneum"]here.[/url]

    Chroma interface and joystick support included ...
    jonathan jonathan April 2022 Brand new software
  • Which looks 'real'?Out of Spin and Spectaculator, which looks and 'feels' most like a real Speccy to you? I mean in terms of border size / playing area the look of the …

    ... encoder/decoder's color distorsions, chroma cubcarrier noise (hmm... maybe some ...
    piters piters February 2006 Emulators
  • Which looks 'real'?Out of Spin and Spectaculator, which looks and 'feels' most like a real Speccy to you? I mean in terms of border size / playing area the look of the …

    ... encoder/decoder's color distorsions, chroma cubcarrier noise (hmm... maybe some ...
    rich_chandler rich_chandler February 2006 Emulators
  • speccy +2A composite videorecently bought a +2a , it works perfect , though can?t get a good picture out of it with the rf output plan to use it on a viewsonic 2010 LCD, th…

    just which part of the circuit is the chroma?
    cdjgroup cdjgroup June 2006 Hardware
  • speccy +2A composite videorecently bought a +2a , it works perfect , though can?t get a good picture out of it with the rf output plan to use it on a viewsonic 2010 LCD, th…

    [QUOTE=cdjgroup]just which part of the circuit is the chroma?[/QUOTE]

    I think that no need for additional electronic. Just solder composite out cable to line which leads to modulator. This is line closer to rear. Plus, of course, to ground...
    piters piters June 2006 Hardware
  • Portugese SpectrumI've just acquired a Speccy 48K which states "made in Portugal" on the back. I thought Portugese "Spectrums" were actually some illegal copy of a Tim…

    ... Horizontal[/B], [B]3.582056MHz chroma[/B] subcarrier, [B]4.5MHz ...
    Marcelo Marcelo August 2006 Hardware
  • You know how the 128K was faster than the 48K Spectrum?Regarding how the Spectrum 128K ran at 3.54 MHz rather than the 48K's 3.5MHz, was this difference enough to be an advantage? If not, then surely Sinc…

    ... have two crystals. One is chroma subcarrier (3.582056 MHz for ...
    Marcelo Marcelo September 2006 Hardware
  • You know how the 128K was faster than the 48K Spectrum?Regarding how the Spectrum 128K ran at 3.54 MHz rather than the 48K's 3.5MHz, was this difference enough to be an advantage? If not, then surely Sinc…

    ... have two crystals. One is chroma subcarrier (3.582056 MHz for ...
    Matt_B Matt_B September 2006 Hardware
  • 4 pin TV out on a laptop questionI've got an old P3 866Mhz laptop that has a 4 pin TV out socket. I'd like to use this with my 14" TV running a Speccy emulator, but I remember being …

    ... /> It's IIRC a sync, chroma, intensity and ground (although wikipedia ...
    guesser guesser November 2006 Chit chat
  • Speccy 128 and Commode 1702 monitorHey Hardware Gurus, I tried to hookup a toast rack speccy 128 to my Commodore 1702 Monitor. It comes through ok but Black and white and no sound (do…

    ... have S-Video output (separate Chroma and Luma). This will perfectly ...
    Sonic Sonic June 2007 Hardware
  • Speccy 128 and Commode 1702 monitorHey Hardware Gurus, I tried to hookup a toast rack speccy 128 to my Commodore 1702 Monitor. It comes through ok but Black and white and no sound (do…

    ... have S-Video output (separate Chroma and Luma). This will perfectly ...
    Gods Gods June 2007 Hardware
  • Best media players?With windows whats the best media player? Is WMP 11 the best? or Winamp and how about Jet audio. With windows I only ever use WMP 11 but I'm I miss…

    ... on top of that)
    chroma
    interlaced
    highest quality ...
    Megatron-UK Megatron-UK June 2007 Chit chat
  • Composite Video output problemHi everyone, I?ve got a problem that?s really bugging me. I have one Spectrum 48K and one Spectrum +3, both with Composite Video output modification…

    ... on PAL TV
    3) Chroma signal not getting to composite ... is the PAL (ish) encoded chroma output.

    -- Richard
    Phu Phu December 2007 Hardware
  • Composite Video output problemHi everyone, I?ve got a problem that?s really bugging me. I have one Spectrum 48K and one Spectrum +3, both with Composite Video output modification…

    ... on PAL TV
    3) Chroma signal not getting to composite ... is the PAL (ish) encoded chroma output.

    -- Richard[/QUOTE ...
    Johan Johan December 2007 Hardware
  • Connecting a ZX Spectrum +2 to a Commodore 1080 monitorI'm have a tough time hooking up my ZX Spectrum +2 to the 1080 monitor. I really would like some help on this as I have no other way to get a pictur…

    ... . Encoding makes: lower sharpness, interference (chroma carrier is often even visible ...
    piters piters January 2008 Hardware
  • No colourHi! I'm trying to fix a 6A 48K machine that outputs no colour and shows the characters as if they were in bold. So far, I've done a couple of thing…

    ... you have the 4.43MHz chroma subcarrier or not.

    IN31 IN31 April 2008 Hardware
  • Which computer is most similar to Zx Spectrum?I have wondered recently wihch other 8-bit computer is most of all similar to Zx Spectrum. I mean similar graphics, similar gameplay, similar program…

    ... /oric has colors with high chroma&luma levels as well ... ,255 (white) (luma=1, s chroma(u+v)= 1)

    chroma(u+v)=1.33)
    chroma(u+v)=1.07)
    Arda Arda November 2008 Sinclair Miscellaneous
  • Which computer is most similar to Zx Spectrum?I have wondered recently wihch other 8-bit computer is most of all similar to Zx Spectrum. I mean similar graphics, similar gameplay, similar program…

    ... /oric has colors with high chroma&luma levels as well ... ,255 (white) (luma=1, s chroma(u+v)= 1)

    chroma(u+v)=1.33)
    chroma(u+v)=1.07)
    rich_chandler rich_chandler November 2008 Sinclair Miscellaneous
  • RGB on 48KIs it possible to get better picture (RGB, or at least composite video) from ZX 48K without opening it? (using the expansion port only) I think there…

    ... add some delay line on chroma signal, but was not in ... , interferences between luma signal and chroma (carrier) signals. Reason whay S ...
    piters piters December 2008 Hardware
  • RGB on 48KIs it possible to get better picture (RGB, or at least composite video) from ZX 48K without opening it? (using the expansion port only) I think there…

    ... STs PAL encoder with MC1377. Chroma filter is removed, together with ... possible interference if luma and chroma freq. (multiplies) are close. Then ...
    piters piters December 2008 Hardware
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