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Search Again :: Adv Search 1000 results in 0.009s
<1234567…34>
  • The quest for true 50 HzAfter experimenting with interframe blending on Sinclairean, I wonder if someone has ever managed to get a custom Spectrum-friendly 50 (or better, 50…

    ... a custom Spectrum-friendly 50 (or better, 50.08!) Hz video mode on ...
    Madonna Mk 2 Madonna Mk 2 April 2010 Emulators
  • Timing... in the CSS faqI was looking at the CSS faq for something completely unrelated and noticed: [quote] Then the 192 screen+border lines are displayed, followed by 56 …

    ... long, which means that the '50 Hz' interrupt is actually a 3 ... .5MHz/69888=50.08 Hz interrupt. This fact can ...
    Winston Winston July 2008 Hardware
  • Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…

    ... will interrupt at a stable 50.xxxx Hz rate. The Z80 takes ... ISR will be called at 50.xx Hz rate with a 4 ...
    Alcoholics Anonymous Alcoholics Anonymous September 2003 Development
  • Will Spectrum run @ 60Hz?Sorry to overlap w/ my other recent post, but want to know, if I grab a Spectrum and use it in America with a voltage converter or a different power …

    Speaking of 50/60 Hz AC line..

    Powering ... the DC supply with 60 Hz generates a higher voltage after ...
    klingler klingler November 2004 Sinclair Miscellaneous
  • Will Spectrum run @ 60Hz?Sorry to overlap w/ my other recent post, but want to know, if I grab a Spectrum and use it in America with a voltage converter or a different power …

    ... , klingler wrote:
    Speaking of 50/60 Hz AC line..

    Hz generates a higher voltage after ... Spectrum PCB will be 60/50 = 1.2 times larger due ...
    Alcoholics Anonymous Alcoholics Anonymous November 2004 Sinclair Miscellaneous
  • BA157 diodeUsed in Speccies, so not too off topic :P Right, it's a "fast recovery rectifier diode" - can anybody tell me what that means exactly? Fast recover…

    Diodes as serie 1N400x are simple too slow for use in digital circuits (except power supply at 50/60 Hz).
    In praxis it means that at high frequencies slow diodes will have big resistance, will get warm...
    piters piters May 2006 Hardware
  • My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…

    ... are "auto-switching" on 50/60 hz video signals. Also, video signal ...
    Gods Gods June 2007 Sales
  • New TV recommendations?Right, I think retrocomputing on the lounge floor is starting to get a bit impractical. I have to do it here because that's where my circa 1994 Sony …

    ... and UHF. It does PAL 50 / 60 hz. NTSC. I use it ...
    MrCheese MrCheese September 2007 Hardware
  • New TV recommendations?Right, I think retrocomputing on the lounge floor is starting to get a bit impractical. I have to do it here because that's where my circa 1994 Sony …

    ... and UHF. It does PAL 50 / 60 hz. NTSC. I use it ...
    guesser guesser September 2007 Hardware
  • New TV recommendations?Right, I think retrocomputing on the lounge floor is starting to get a bit impractical. I have to do it here because that's where my circa 1994 Sony …

    ... and UHF. It does PAL 50 / 60 hz. NTSC. I use it ...
    LeeT LeeT September 2007 Hardware
  • Sinclair PC 200 - RF questionIs there any compatibility regarding the RF output of the sinclair pc 200? This week i got my 2nd unit and in both of them, when connected through R…

    ... supply does not produce 50 Hz or 100 Hz noise[/B] - How can ... it is not caused by 50/100 Hz power supply.

    ingo ingo September 2008 Hardware
  • Sinclair PC 200 - RF questionIs there any compatibility regarding the RF output of the sinclair pc 200? This week i got my 2nd unit and in both of them, when connected through R…

    ... it is not caused by 50/100 Hz power supply.

    odious odious September 2008 Hardware
  • Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…

    ... )

    [quote]
    The 50 Hz interrupt is synchronized with the ... exact time in the 1/50 second time-slice at which ... long, which means that the '50 Hz' interrupt is actually a 3 ... .5MHz/69888=50.08 Hz interrupt. This fact can ...
    rich_chandler rich_chandler December 2008 Emulators
  • NTSC land helpHi all, first post here, and it's a bit of a techie noob one. I did search, honest, but couldn't find what I was looking for. I'm a UK (Scotla…

    ... that says on the box 50/60 hz and 100-250V
    stulec52 stulec52 February 2009 Hardware
  • Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…

    ... capable of outputting a true 50.000 Hz PAL video signal, and ... both? 44,100 Hz is an exact multiple of 50.

    Madonna Mk 2 Madonna Mk 2 August 2009 Development
  • Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…

    ... capable of outputting a true 50.000 Hz PAL video signal, and ... both? 44,100 Hz is an exact multiple of 50.[/quote]
    50 sound samples, play the samples ...
    Fred Fred August 2009 Development
  • I just picked up a free Atari 520stJust got a free 520ST, (no cables or leads) and a small box load of games. :? dunno what to do with it, but it was being thrown out, so I grabbed it…

    ... didn't reach a smooth 50/60 Hz frame rate, and looked ...
    Madonna Mk 2 Madonna Mk 2 September 2009 Chit chat
  • I just picked up a free Atari 520stJust got a free 520ST, (no cables or leads) and a small box load of games. :? dunno what to do with it, but it was being thrown out, so I grabbed it…

    ... didn't reach a smooth 50/60 Hz frame rate, and looked ...
    Madonna Mk 2 Madonna Mk 2 September 2009 Chit chat
  • Amiga or Atari STWhich system did you like the most ??? My person fave was the Amiga as i had loads of fun on it with games like Star Dust, Supr Frog, Speedball 2 an…

    ... layer... all in basic at 50 fps or 60 fps... where ... a scrolling game engine at 50 or 60 fps in BASIC ... they aren't running at 50/60 hz and the framerate does ... .25 fpsm nothing like a 50/60 fps lock to fuck ...
    CKay CKay October 2009 Chit chat
  • "Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…

    ... .50000MHz and has interrupts at 50.08 Hz, giving 69888 T-states ... .54690MHz and has interrupts at 50.01Hz, giving 70908 T-states ...
    gasman gasman June 2010 Sinclair Miscellaneous
  • RGB scart to S-Video converter only b&wMy new RGB scart to S-Video converter shows only a black & white picture. It is for my Sprinter 2000. On a normal tube TV with scart, without the co…

    would it have something to do with the 50 / 60 hz setting on the tv or that box? just a thought .. as well older consoles , like the jap psx would play in b/w on my older telly.
    fog fog September 2010 Hardware
  • Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…

    ... ;539411]Calculation: if interrupt occurs 50 times per second this gives ... that the interrupt frequency is 50.01 Hz. For a 128K machine ... of 3.5469 MHz => 50.08 Hz.

    Doesn't ...
    Philip Kendall Philip Kendall May 2011 Development
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    ... interrupts at other than the 50/60 Hz rate. In fact, a ...
    Alcoholics Anonymous Alcoholics Anonymous May 2012 Development
<1234567…34>

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