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Search Again :: Adv Search 771 results in 0.001s
<1234567…26>
  • Spectrum 48K and wrong power supply polarity!!!Hello, I need a help fixing my Spectrum 48K, motherboard issue 4B. Since I'm in Canada, I couldn't use standard spectrum power supply, so I checked a…

    ... smoke... I think that center polarity was positive, instead of required ...
    tiho tiho January 2005 Sinclair Miscellaneous
  • PSU polarityHi! I have a speccy+ psu and somewhere there is a loose connection.I suspect the end to the speccy side. I need to cut the wire and put a new socket.…

    ... be opened,to understand the polarity.
    I do not have ...
    Pyjamarama Pyjamarama June 2008 Hardware
  • Sinclair FTV1 - Power supply polarity?I've just dug out my old Sinclair FTV1 pocket telly. Does anyone know the polarity of the power supply requirements, before I plug it in and blow it…

    ... />
    Does anyone know the polarity of the power supply requirements ... mention anywhere as to the polarity....
    chaosmongers chaosmongers January 2010 Sinclair Miscellaneous
  • Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…

    ... the patent application, the polarity
    detection / inversion is well described, but ...
    lfaria lfaria August 2011 Hardware
  • Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…

    ... the current is amplified. Without inversion of polarity.
    This makes your ... truth table follow to the normal inversion ...
    roko roko June 2013 Hardware
  • spectrum48k power supply?Hello, I live in the U.S. and I need to get a power adapter for the spectrum 48k comparable to the original. I needed to know all the specifications…

    ... it is of negative center polarity, the watts??, any output frequency ...
    thoma thoma December 2001 Sinclair Miscellaneous
  • blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …

    ... - damn. i accidentally reverted the polarity of the power power supply ...
    mark mark November 2001 Sinclair Miscellaneous
  • TS2068 PSU?Just wondering what is the voltage and polarity that the TS2068 PSu has. My unit has no PSU, and I was expecting to either use my Spectrum 12V power …

    ... what is the voltage and polarity that the TS2068 PSu has ...
    Akira Akira March 2004 Sinclair Miscellaneous
  • ANN: Spectaculator 6.2[NEW]: Spectaculator 6.2 Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Spectaculator emul…

    ... for TZX files that are polarity sensitive. This includes
    Basil ...
    Jon Needle Jon Needle May 2004 Emulators
  • Sinclair FTV1 - help!I want to try out a Sinclair FTV1 I've just bought. Can anyone tell me the polarity that I need to use when using a mains adaptor? (I understand tha…

    ... . Can anyone tell me the polarity that I need to use ...
    chaosmongers chaosmongers August 2004 Sinclair Miscellaneous
  • Commodore 16 (yuk!) help neededJust got hold of a whole bunch of retro computers. Slowly working through them, fixing, canibalising, dumping etc. does anyone know what power suppl…

    ... i knew the voltage and polarity etc. Any help appreciated but ...
    Fazz Fazz July 2005 Sinclair Miscellaneous
  • XLR-8 full demo now available as CSWWell he's gone and done it. Woody is officially the king :) We now have a copy of Manic Miner protected by XLR-8 as a CSW if anyone wants to pick at …

    ... ? He's even fixed a polarity bug in the tape routines ...
    JonNorth JonNorth December 2005 Development
  • Didaktik Kompakt MI have probably spelt it incorrectly, but - does anybody know the power requirements for this little machine? What connectors does it use, polarit…

    ... /> What connectors does it use, polarity of power plugs etc etc ...
    DEATH DEATH February 2006 Hardware
  • 128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…

    ... .8V, 2.1 Amps, -ve polarity (original +2 grey power supply ...
    netomc netomc September 2006 Hardware
  • PngConvRight. Thought I'd move this to a new thread, simply because I can. If you've not been reading the thread about [URL=http://www.worldofspectrum.org/…

    ... using the alpha channel), allowing inversion of the image data, and ...
    icabod icabod November 2006 Development
  • Is this advisble for batteries?You know how you shouldn't leave batteries in any portable (or non-portable) item, such as an mp3 player, a digital camera etc, if you're not going t…

    ... mate reckons), since the order (polarity) of the battery(s) is ...
    ewgf ewgf February 2007 Chit chat
  • 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…

    ... 0x0A to indicate CSW datas polarity (as it is in the ... we know the CSW datas polarity ? Should TZX file have block ...
    patrick delvenne patrick delvenne April 2007 Emulators
  • ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …

    ... of 9volts 1,85A and polarity -ve.

    I connected ... was not sure of the polarity so i may have gotten ... wrong and connected it with + polarity.

    However this only ... after i used the -ve polarity the spectrum heatsink works and ...
    Msx2 Msx2 July 2007 Hardware
  • +2 power supply on standard SpecciesHi! I have a few 48K speccies, and I run them using a shitty chinese multi-voltage power supply. I've heard some horror stories of that power suppli…

    ... . Is the same voltage and polarity, but it gives more amperage ...
    Hernán Pablo Álvarez Hernán Pablo Álvarez January 2008 Hardware
  • New Guy Wants Speccy - SWAP !Hi, I`m new here so here is a little background info ! I always had a C64 when I was in my teens in the 80`s, my friends had Spectrums, so it was alw…

    ... me fried it by reverse polarity a power supply !

    daznic daznic February 2009 Wanted
  • Do ULAs die?Thought I'd start this thread as people often think their ULA is dead, when it's actually the RAM or power circuits. Searching the forum in the futur…

    ... fine after correcting the power polarity.

    Usually I find ...
    csmith csmith October 2010 Hardware
  • Need space, selling items from my spectrum collectionHi everybody, I need some space and therefor I'm selling items from my spectrum collection. The following I have for sale: (I'll try to write as mu…

    ... long time ago to reverse polarity to power an Oric-1 ...
    Edo35 Edo35 March 2011 Sales
  • ZX Setup QuestionsHi guys! I have been reading around the forums and love what is goin on. Anyways I just got my first ZX Spectrum (16k, rubber keys, boxed and compl…

    ... the voltage input with reversed polarity (center negative) but am hesitant ...
    Coffeeandmeat Coffeeandmeat July 2011 Hardware
  • Alphacom 32 Printer - Power supplyI've just received a Alphacom 32 Printer via ebay. However, its not the correct power supply, doesnt even connect to the printer. Just been stuck in …

    ... I dont know what the polarity its etc.

    Anyone ...
    The Entertainment King The Entertainment King September 2011 Hardware
  • Getting absolutely no video from a 128+I'm trying to get a friend's toastrack 128 to show video and I'm not having any luck. I'm in the US, so I don't have access to any TVs that can take …

    ... amps; it has the right polarity and has been tested thoroughly ...
    papa_november papa_november April 2012 Hardware
  • 48k PSU UpgradeCan anyone give the definitive word on a PSU upgrade (rather than just a replacement) for 48k machines? I'm thinking of adding at least an IDE inter…

    ... 'm paranoid about getting the polarity wrong and making my Speccy ...
    napoleonblownaparte napoleonblownaparte May 2012 Hardware
  • ZX-Paintbrush 2.2.1 releasedDear readers and friends of ZX-Spectrum emulator stuff! Today I released the version 2.2.1 of ZX-Paintbrush with interesting new features and many b…

    ... tool (loss on quality, needless inversion)
    * Customizeable info bar (showing ...
    clausjahn clausjahn June 2012 Emulators
  • Low level microdrive programmingSo I'm on my lunch break trying to find out about low level microdrive programming (without using IF1 ROM). I see one can use port 0xe7 to read and w…

    ... work?
    What is their polarity and meaning?
    How do ...
    tstih tstih July 2012 Development
  • The great 128k ConversionWell, I am not sure if it is going to be great. Hopefully it will! This evening, I set about getting my Issue 6A Spectrum Plus working. I suspecte…

    ... connected up with the wrong polarity, back at some time in ...
    ramsrc ramsrc October 2012 Hardware
  • DK'Tronics Dual Sticks and Up/DownIs there a know issue with the DK'Tronics dual port joystick interface - the one that supports Kempston and Sinclair #1 (6..0)? I vaguely remember a…

    ... and actually wanting up/down inversion so [I]Space Harrier[/I ...
    joefish joefish February 2013 Hardware
<1234567…26>

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Related Threads

  • Spectrum 48K and wrong power supply polarity!!!Hello,<br /> I need a help fixing my Spectrum 48K, motherboard issue 4B. Since I'm in Canada, I couldn't use standard spectrum power supply, so I che…
  • PSU polarityHi!<br /> I have a speccy+ psu and somewhere there is a loose connection.I suspect the end to the speccy side.<br /> I need to cut the wire and put a…
  • Sinclair FTV1 - Power supply polarity?I've just dug out my old Sinclair FTV1 pocket telly.<br /> <br /> Does anyone know the polarity of the power supply requirements, before I plug it in…
  • binary inversioni know this is a bit of a maths question but how to i find the decimal opposite of an 8 bit binary number? like inverting all the bits? so say 255 be…

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