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<1…24252627282930…34>
  • 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 …

    ... video signal but with NTSC-frequency color burst, which apparently is ...
    RetroTechie RetroTechie November 2010 Sinclair Miscellaneous
  • What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…

    ... with slightly different sound carrier frequency. best is just to forget ...
    orange orange November 2010 Hardware
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... agree it's just plotting frequency - the number of times that ...
    Battle Bunny Battle Bunny November 2010 Sinclair Miscellaneous
  • 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 …

    ... it could look from clock frequency numbers. You know, shortest operations ...
    Shiru Shiru November 2010 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 …

    ... it could look from clock frequency numbers. You know, shortest operations ...
    Mister Beep Mister Beep November 2010 Development
  • Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…

    ... some control over the read frequency by inserting a delay loop ...
    trellis trellis December 2010 Development
  • iPhone loading. What am I doing wrong?Hi Folks, I've converted a couple of files to MP3 to play back through an MP3>cassette adapter on my +2B. They appear to start loading, but I get …

    ... settings:

    [INDENT]Sample frequency: 48000

    Wave form ...
    jp jp December 2010 Emulators
  • Olympus L400Sorry for my bad English . I tried to copy some games to an Olympus L 400 "Diktierer?t" Voice Recorder but it is impossible to Load them on a Spectru…

    Low quality recording... good enough for voice, unreliable for recording Spectrum software. And perhaps too aggressive frequency filtering or a weak output volume to make things worse.
    RetroTechie RetroTechie December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... video output. This stops higher frequency signals from getting into the ... broken).

    This high frequency interference is being interpreted as ...
    guesser guesser December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    I would think you do need it to be the right frequency, that one will be 5.5MHz ("MC" is Mega Cycles I guess)
    guesser guesser December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... it to be the right frequency, that one will be 5 ...
    gtsamour gtsamour December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... exactly half the ULA main frequency (the pixel clock it uses ...
    mcleod_ideafix mcleod_ideafix 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…

    ... handle, screen refresh or line frequency is often CPU clock divided ... programmers, CPU has max. clock frequency (and higher clock needs faster ...
    RetroTechie RetroTechie December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    I'm curious... would it work if instead of the original ceramic resonator of 6.5Mhz, I used a crystal of the same frequency?
    gtsamour gtsamour December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... a crystal of the same frequency?[/QUOTE]

    you might ...
    guesser guesser December 2010 Hardware
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... is not a common Xtal frequency.

    I suppose the ...
    RetroTechie RetroTechie December 2010 Hardware
  • Currah Speech + comp. video modI just bought a Currah Speech unit I planned to use it with my 48K, but I have performed the composite video mod on it. [url]http://womblesretrorepai…

    ... without this container (at UHF frequency) there is no way to ...
    roko roko December 2010 Hardware
  • Moving screen while BEEPER's playing?Hi. For some time I think about it. First time I saw it on YouTube, on ZX Spectrum Orchestra video. Effects are of course rather simple but still…

    ... at multiples of the HBLANK frequency of the TV. And since ...
    joefish joefish December 2010 Development
  • Powering up a Speccy after long-term storage.Staying at my folks for Christmas. Feels good to be back in God's country again, even if it is -12C outside at the moment. :-o Anyway, I was plannin…

    ... signal using roughly the same frequency. What we want to achieve ...
    mcleod_ideafix mcleod_ideafix December 2010 Hardware
  • Powering up a Speccy after long-term storage.Staying at my folks for Christmas. Feels good to be back in God's country again, even if it is -12C outside at the moment. :-o Anyway, I was plannin…

    ... signal using roughly the same frequency. What we want to achieve ...
    Dave_C Dave_C December 2010 Hardware
  • looking for a tap2wav coded in Python, Perl, Ruby or Luasince some months i started this project - [url]http://nitrofurano.altervista.org/experimental/webcampictureson8bitcomputers/index.html[/url] the pr…

    ... TAP format or the standard frequency for the 0 and 1 ...
    SyX SyX December 2010 Development
  • looking for a tap2wav coded in Python, Perl, Ruby or Luasince some months i started this project - [url]http://nitrofurano.altervista.org/experimental/webcampictureson8bitcomputers/index.html[/url] the pr…

    I have not got any time to study the TAP format yet, but if somebody can tell the format of the standard rom loader leader (how many bytes and what value) and its frequency for 1s and 0s, i will finish this script for [B]nitrofurano[/B].
    SyX SyX January 2011 Development
  • looking for a tap2wav coded in Python, Perl, Ruby or Luasince some months i started this project - [url]http://nitrofurano.altervista.org/experimental/webcampictureson8bitcomputers/index.html[/url] the pr…

    ...
    WAV_FREQUENCY = 44100

    # Frequency of pulses
    PILOT_FREQ = int ...
    SyX SyX January 2011 Development
  • Trying to repair a 128K (heatsink)I've bought another ZX Spectrum 128K (heatsink model), but unfortunately the last owner did not tell me it did not work.... Because this Speccy also…

    ... /> 17 MHz is pretty high frequency to use an LS part ... very fast (better for lower-frequency oscillators). 74LS04 would be a ...
    RetroTechie RetroTechie January 2011 Hardware
  • Trying to repair a 128K (heatsink)I've bought another ZX Spectrum 128K (heatsink model), but unfortunately the last owner did not tell me it did not work.... Because this Speccy also…

    ... ]17 MHz is pretty high frequency to use an LS part ...
    netomc netomc January 2011 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…

    ... was already running at radio frequency. The BBC relented when they ...
    Winston Winston January 2011 Hardware
  • ADSL problem, advice appreciatedThis is a bit of a long explanation but I wanted to cover it all. My parents ADSL packed in about two weeks ago. They had an external USB modem. A n…

    ... be that the broadband signal frequency has shifted and is now ...
    The Starglider The Starglider January 2011 Chit chat
  • Issue2 troublesHi! I have a 48k Speccy Issue 2 which has trouble with displaying colour. It did have a broken LM1889 chip (it didn't display the blue component of …

    ... needs to be an exact frequency. If it's off, this ...
    RetroTechie RetroTechie January 2011 Hardware
  • ADSL problem, advice appreciatedThis is a bit of a long explanation but I wanted to cover it all. My parents ADSL packed in about two weeks ago. They had an external USB modem. A n…

    ... in between that separates the frequency bands used for voice & ...
    RetroTechie RetroTechie January 2011 Chit chat
  • Dutch meeting(s) in 2011[I]Hi, I'm busy organising something in The Netherlands and will email lot's of Sinclair-enthousiasts with detailed info. There is no concrete plan …

    ... that possibility, like the location, frequency, visitors numbers, and maybe costs ...
    bverstee bverstee January 2011 Announcements
<1…24252627282930…34>

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