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  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... : 9v DC, 1.4A (centre polarity = -ve)
    TFT tv: 11W ...
    zxbruno zxbruno March 2007 Sinclair Miscellaneous
  • Is this power supply ok?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160104076665&fromMakeTrack=true[/url] I've bought a few items from this eBay seller and ne…

    ... ok so long as the polarity is correct and it puts ...
    beanz beanz April 2007 Hardware
  • Is this power supply ok?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160104076665&fromMakeTrack=true[/url] I've bought a few items from this eBay seller and ne…

    I don't know how to check polarity and I thought it couldn't have more than 1.2A.
    zxbruno zxbruno April 2007 Hardware
  • Is this power supply ok?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160104076665&fromMakeTrack=true[/url] I've bought a few items from this eBay seller and ne…

    ... 't know how to check polarity and I thought it couldn ... .[/QUOTE]

    Well the polarity thing is not too big ... got mine, particularly about the polarity but it ended up not ...
    beanz beanz April 2007 Hardware
  • Is this power supply ok?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160104076665&fromMakeTrack=true[/url] I've bought a few items from this eBay seller and ne…

    Looks good, its got the adapter heads too, just have to make sure you put it on the right way before you plug it in (thats the polarity).
    beanz beanz April 2007 Hardware
  • New version of k7zxHere it is version 3 of k7zx [url]http://personal.auna.com/casariche/k7zx/k7zx3.htm[/url] It supports 128k snapshots. It adds new loading methods …

    ... not same results depending on polarity of wav. And depending ... 48k vs. +2) the optimus polarity is just the oposite one ... that only works with one polarity. (Non Plus Ultra, Delta ... />
    (trick about polarity: You can simulate invert polarity by pressing key ...
    decicoder decicoder April 2007 Development
  • CluedoI cant seem to get cluedo to load in spectaculator. Ive tried the version on infoseek and tried recording my copy but it gets stuck at the first spee…

    tried reversing the polarity yet ? in spin one can do that ...
    Tom-Cat Tom-Cat April 2007 Games
  • TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…

    ... TZX needs to have specified polarity then it is preffered ... that the polarity is set at the ... to explicitly set the polarity of the 0x19 block ... finished with the same polarity and if there is ... applies to block 0x18 lacking polarity also, so I won ...
    Tom-Cat Tom-Cat April 2007 Emulators
  • Anybody fancy coding this?blah de blah de blah Please ignore, poting error.

    ... it gets detected by an inversion test (i.e. clearing down ... ROM code currently tests four inversion patterns - all mem set to ...
    Winston Winston April 2007 Development
  • zx spectrum 48k powerpackhi just a quick question for you guys. i have just bought a 48k rubber key'd speccy without a power supply. i have found a power supply in my spares …

    no, not strong enough. Voltage ok, but you need at least an Amp (1000 mA). 2.1mm power plug and centre (hole) must be negative polarity.
    DEATH DEATH April 2007 Hardware
  • zx spectrum 48k powerpackhi just a quick question for you guys. i have just bought a 48k rubber key'd speccy without a power supply. i have found a power supply in my spares …

    Would a Megadrive 1 PSU be OK? They're negative polarity 1.2A / 9v I believe...

    I think the connector may be the same too.
    chaosmongers chaosmongers April 2007 Hardware
  • zx spectrum 48k powerpackhi just a quick question for you guys. i have just bought a 48k rubber key'd speccy without a power supply. i have found a power supply in my spares …

    ... be OK? They're negative polarity 1.2A / 9v I believe ... ]

    If by negative polarity you mean the centre hole ...
    DEATH DEATH April 2007 Hardware
  • TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…

    ... will work regardless of the polarity. We were proven otherwise ... this will effectively reverse the polarity of the next block (because ... will start with the opposite polarity). For this reason the ... block will have the same polarity than the previous one.< ...
    Tom-Cat Tom-Cat April 2007 Emulators
  • TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…

    ... />
    Of course there are polarity dependent loaders out there (many ... block without worrying about the polarity, and implementors would not have ...
    Patrik Rak Patrik Rak April 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... two symbols, if it is polarity-sensitive and so on. Maybe ...
    Luca Luca April 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... nice that to change the polarity of the block, one has ... if someone uses an opposite polarity than usual.

    To ...
    Patrik Rak Patrik Rak May 2007 Emulators
  • 48K Speccy not workingHey, A few months ago (hope it&#180;s not to late) I was loading a game into my speccy and from one moment to another it stopped working! I unplugge…

    ... old and dry, or reverse polarity - either way, it'll not ...
    DEATH DEATH May 2007 Hardware
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... Fuse. After a simple fix (polarity issue) he could get all ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... Fuse. After a simple fix (polarity issue) he could get all ...
    Philip Kendall Philip Kendall May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    Woody changed the polarity of the playback and Basil ( ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... mention of me
    fixing polarity in SpecEmu at pretty much ... be auto-tape controls, not polarity. We were talking about two ... things (Fuse/SpecEmu polarity) at the
    same time ... could be interpreted as the polarity fix
    being applied to ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... -Cat;189923]Woody changed the polarity of the playback and Basil ...
    Philip Kendall Philip Kendall May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... and 1 have opposite
    polarity, same length pulses. Therefore the ... special polarity flags to prolong
    previous ... />
    Gremlin 2 - needs specific polarity for loading (uses GDB flags ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... /> [QUOTE]Gremlin 2 - needs specific polarity for loading (uses GDB flags ... need GDB, as the "Set Polarity" block in v1.20 will ...
    Philip Kendall Philip Kendall May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... need GDB, as the "Set Polarity" block in v1.20 will ... % sure yet if the Set Polarity will do for these, since ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... is standard loader, Wizball is polarity sensitive, so anyone interested can ... make sure they got the polarity right.

    Patrik
    Patrik Rak Patrik Rak May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... is standard loader, Wizball is polarity sensitive, so anyone interested can ... make sure they got the polarity right.

    Edit: Just ...
    Patrik Rak Patrik Rak May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... standard loader, Wizball is polarity sensitive, so anyone interested ... make sure they got the polarity right.
    Patrik[/QUOTE ... control codes.
    -2- polarity: state that all blocks incl ... will include a starting signal polarity definition.

    ...
    Kio Kio May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... anyway...

    [QUOTE]-2- polarity: state that all blocks incl ... will include a starting signal polarity definition.[/QUOTE]

    Is ... block defined explicitly defines the polarity level. So is it the ...
    Patrik Rak Patrik Rak May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... single block without explicit start polarity, then questions like "what after ...
    Kio Kio May 2007 Emulators
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