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Search Again :: Adv Search 1000 results in 0.006s
<1234567…34>
  • 5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…

    ... book discusses 6C011E as the NTSC ULA sold in Spectrums in Chile ... a much earlier 5C series NTSC ULA, in a Spectrum with a ... crystal which has to be NTSC. 5C114E 8248 would have been ... time the 5C112E-2 PAL ULA was being made.

    rga24 rga24 April 2014 Hardware
  • ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …

    ... in "The ZX Spectrum ULA: how to design a ... , 14MHz (experimental). The original ULA contention algorithm is always applied ... output (PAL => PAL ULA, NTSC => NTSC ULA)
    - VGA 50Hz/60Hz ... VGA 50Hz => PAL ULA, VGA 60HZ => NTSC ULA)

    At ...
    adorigatti adorigatti August 2011 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... /> If I were designing this NTSC ULA, then I would use 263 ... to the 312 line PAL ULA, and require only a tiny ... /> As this is a real NTSC machine, it would be nice ...
    csmith csmith April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... that the crystal on the NTSC Spectrum produces a CPU clock ... would have been given the ULA source when making the TS2068 ... internal counters used in the NTSC ULA and the timings are the ...
    Fred Fred April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... that the crystal on the NTSC Spectrum produces a CPU clock ... internal counters used in the NTSC ULA and the timings are the ... , given that the ntsc spectrum uses a ULA, the easiest minor tweaks ... to the UK ULA fabrication mask to create the NTSC chip, avoiding ...
    csmith csmith April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    [QUOTE=Fred;345864]NTSC Speccy
    frame length 0xe700 ... simple!!!

    The PAL ULA resets the line counter when ... (312)
    I guessed the NTSC ULA might have reset at 100000111 ...
    csmith csmith April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... asking is that if the NTSC ULA just truncates the number of ...
    csmith csmith April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... an obvious problem on the NTSC machines!

    [QUOTE]Incidentally ... asking is that if the NTSC ULA just truncates the number of ... lower border area on the NTSC machine.
    Fred Fred April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... ) :

    1) Does the NTSC Spectrum run faster than the ... crystal used to generate the NTSC/PAL picture, ie: 3.52 ... quicker on the NTSC ULA compared to the PAL ULA?

    4 ... ) Does the NTSC Spectrum suffer ...
    Jimmy Jimmy April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ...
    1) Does the NTSC Spectrum run faster than the ... which also contains a NTSC ULA based on the original ... on the NTSC ULA compared to the PAL ULA?[/quote]
    NTSC ULA as opposed to the ... /> [quote]4) Does the NTSC Spectrum suffer from the same ...
    Philip Kendall Philip Kendall April 2009 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    [QUOTE=Philip Kendall;346721]The ULA flips FLASH every 16 frames, ... /60 = 0.27s on the NTSC ULA as opposed to the 16 ... = 0.32s on the PAL ULA. They could have changed the ...
    Fred Fred April 2009 Hardware
  • Spectrum in black TS1500 case with grey "Sinclair ZX Spectrum" labelAt the Spectrum30 event yesterday, someone had brought a Spectrum like object with an unusual case and I never did find out whose it was or where it …

    ... different colour crystal and an NTSC ULA. Such a board did apparently ...
    rga24 rga24 September 2012 Hardware
  • NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…

    ... fuzzy. But then again, even NTSC images look like crap on ... />
    I bought a PAL NTSC converter off eBay but it ... the lines of NTSC compatibility of games. Between the NTSC ULA (which appears ... to be rare) and/or the Timex NTSC ...
    cbmeeks cbmeeks December 2015 Games
  • Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …

    ... from South America might have NTSC ULA instead PAL one. There are ...
    Claudius Claudius January 2017 Hardware
  • Are there any differencies between Speccies in different countries?I am asking for differencies of ordinary Speccies, not clones. Can I travel to foreign country, buy Speccy from fleamarket and except it will run at …

    ... from South America might have NTSC ULA instead PAL one.[/quote]
    NTSC standard by employing a Ferranti 6C011E-3 ULA chip ...
    Alessandro Grussu Alessandro Grussu January 2017 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…

    ... the Spectrum was using the ntsc ULA would this modification still apply ...
    Renegade Renegade June 2017 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    Does the Spectrum NEXT output a ntsc video signal whith the proper ntsc ULA timings?
    Renegade Renegade June 2017 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    Someone just tipped me that the Brazzilian ZX Spectrum Clone TK90X can output a NTSC video signal.

    Does this mean that spectrum games that run faster with the Ferranti NTSC ULA will run as fast on a TK90X NTSC?
    Renegade Renegade September 2017 Hardware
  • 50 Hz / 60 Hz switch in Timex Computer 2068I'm not sure if this is common knowledge, I've certainly never read about it online, though it may be documented in Portuguese or Polish. There is a…

    ... of the PAL and NTSC television systems. But they ... error when specifying the NTSC ULA crystal frequency. 15.750 ... true line frequency for NTSC colour is very slightly ... comes from dividing the NTSC sound carrier frequency 4 ... a PAL or NTSC ULA from any of them.
    rga24 rga24 October 2017 Hardware
  • 50 Hz / 60 Hz switch in Timex Computer 2068I'm not sure if this is common knowledge, I've certainly never read about it online, though it may be documented in Portuguese or Polish. There is a…

    ... run at 60 Hz in NTSC. A lot of games are ... on real hardware (48K with NTSC ULA installed) many games and there ...
    Renegade Renegade October 2017 Hardware
  • 50 Hz / 60 Hz switch in Timex Computer 2068I'm not sure if this is common knowledge, I've certainly never read about it online, though it may be documented in Portuguese or Polish. There is a…

    ... run at 60 Hz in NTSC. A lot of games are ... on real hardware (48K with NTSC ULA installed) many games and there ...
    Black_Cat Black_Cat October 2017 Hardware
  • Miracle Systems RGB monitor interfaceUpon doing some reading of the book [i]The Complete Spectrum edited by Alan Scott[/i] I found a reference to this RGB interface for the Spectrum whic…

    ... Spectrum is determined by the ULA. So if a U.K ... . ULA is fitted, the timings will ... ZX Spectrum that has a NTSC ULA.

    [b][i]Mark ...
    1024MAK 1024MAK March 2018 Hardware
  • 5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…

    ... it work correctly with the ntsc ula.
    Renegade Renegade October 2020 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... a bit upon, the NTSC ula requiring a "NTSC board".

    Well ... to which I fitted a NTSC ula and the correct value crystals ...
    Renegade Renegade February 2022 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... . This is due to different ULA chips having slightly different timing ... some changes in the later ULA chips to improve the reliability ... /> So that would mean the ntsc ULA was originally meant for an ...
    Renegade Renegade February 2022 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... differences between PAL and colour NTSC. The LM1889 can do more ... , in the case of the NTSC ULA being present, do you know ... in order to output a NTSC video signal, apart from the ...
    Renegade Renegade March 2022 Hardware
  • USA NTSC SPECCY?How can I use the Speccy in a NTSC TV?

    How can I use the Speccy in a NTSC TV?
    Bruno Florindo Bruno Florindo April 2001 Sinclair Miscellaneous
  • NTSC ZX Spectrum +2 wanted for USAI live in NY USA and I know nothing about electronics. I'm willing to buy a ZX Spectrum +2 that would be prepared to send a NTSC signal (instead of P…

    ... be prepared to send a NTSC signal (instead of PAL) to ...
    Bruno Florindo Bruno Florindo November 2001 Sales
  • NTSC MONITORLast year I bought a +2 at eBay. I live in New York, USA. I had a +2 when I was in Portugal (6 years ago). I posted a topic here and 2 persons told m…

    ... that would work in a NTSC tv, but I don't ... PAL TV modulator for a NTSC TV modulator (that would be ... me ($$$$) that would send a NTSC signal from the TV output ...
    Bruno Florindo Bruno Florindo August 2001 Sales
  • WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello, Attempting to repair my 128k+ speccy. Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also. If anyone has this chip or has a…

    ... 128k+ speccy.
    Needs a ULA(IC1)chip from either a ... 's broken(other than the ULA), please give me a shout ...
    thomas3120 thomas3120 January 2003 Wanted
<1234567…34>

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
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    mel the bell on April 20

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  • 5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…
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