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Search Again :: Adv Search 1000 results in 0.028s
<1234567…34>
  • ZXSP Emulator running too fastHi All, I was wondering if any of you have had a problem whereby the zxsp emulator runs too fast so won't load games etc? For example, when loading…

    ... whereby the zxsp emulator runs too fast so won't load ... know and love is too high the stripes are too fast.

    Phil2 Phil2 January 2007 Emulators
  • likely damage caused to +2 by too highly rated supplyHi. did have a quick search but couldn't see an answer. I've been offered a +2 which the previous owner damaged by connecting too high a power supply…

    ... previous owner damaged by connecting too high a power supply.

    xbomber xbomber April 2011 Hardware
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... of there not being a +5V to use for the RGB ... is that the load is too much for the ULA, and ... it gets too hot, eventually overheating and causing ... wire it up to a 5V supply, using a resistor to ... 's ULA, and that's too high....
    Spirantho Spirantho October 2013 Hardware
  • ZX Spectrum +2 (grey case) voltage converter circuit oddity.I'm working on repairing one of these and have encountered a possible problem and I'm not sure what I can best do about it, if anything needs to be d…

    ... becomes rather hot - not too hot to touch, but hotter ... between it and 0V is too high) and so I wondered whether ... might cause IC3 to draw too much current (I think ... the 12V output to 10.5V and the -12V one ... . It wrongly showed the 5V supply connected to TR8's ...
    Zorn Zorn November 2014 Hardware
  • Spectrum Games from Japan, some high quality titlesHey guys, I have to sell off some of my Spectrum games and other pieces. Everything is located in Japan, but shipping is not as bad as you might thin…

    ... worth, if the prices are too high well obviously they won't ...
    MagicKnight MagicKnight June 2015 Sales
  • Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …

    ... that an overload on the -5V line can cause this, as ... TR5 open wide and send too much voltage through R60, R61 ... , which will open TR4 too much, and send too high current through it ...
    Pilsener Pilsener January 2007 Hardware
  • Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…

    ... output from the Speccy to too high and overloads TV sets? It ... !

    You can get +5V directly from the regulator, via ...
    DEATH DEATH January 2007 Hardware
  • speccy +2 rgb socket driving me crazy!until today I was using RGB pins 1 and 2 for composite out. Tonight I suddenly get mad and decided to build a proper RGB Scart cable. Having read P…

    To be sure that the 5v doesn't hurt pin 16 on your tv, you usually only need a resistor at ca 1K in series between the computer and pin 16. All tv's have internal circiuts to prevent this voltage from getting too high anyway.
    Pilsener Pilsener February 2007 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... ZX bus (Spartan II is +5v tolerant, so with some modifications ... maybe it could be added too), everything else is in place ... 't think that price is too high, just compare to prices of ...
    kpuchatek kpuchatek December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... ZX bus (Spartan II is +5v tolerant, so with some modifications ... maybe it could be added too), everything else is in place ... 't think that price is too high, just compare to prices of ...
    superfo superfo December 2012 Hardware
  • Keyboard Membrane Speccy +Grrrr! I'm having real problems getting the keyboard on my resurrected Spectrum+ to work reliably. I changed the keyboard membrane, and all seems to…

    ... connector of the keyboard to +5V.
    If this helps leave ... capacitances of new membranes maybe too high in some cases.

    ingo ingo April 2013 Hardware
  • Keyboard Membrane Speccy +Grrrr! I'm having real problems getting the keyboard on my resurrected Spectrum+ to work reliably. I changed the keyboard membrane, and all seems to…

    ... connector of the keyboard to +5V.
    If this helps leave ... capacitances of new membranes maybe too high in some cases.[/QUOTE]
    ingo ingo April 2013 Hardware
  • ZX Spectrum clock signals comparedI haven't searched for this on WoS; it might have been posted before. But I think it's important info, and can't do any harm to repeat or show from a…

    ... from the ZX clock to 5V.
    Now everything works perfectly ... 'm a bit afraid of too high currents on the clock signal ...
    bverstee bverstee September 2013 Hardware
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... of there not being a +5V to use for the RGB ... is that the load is too much for the ULA, and ... it gets too hot, eventually overheating and causing ... wire it up to a 5V supply, using a resistor to ... 's ULA, and that's too high....[/QUOTE]

    Your ...
    Falco-F8L Falco-F8L October 2013 Hardware
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... 's ULA, and that's too high....[/QUOTE]

    The concern ... a manner that is not too cumbersome to use. However, it ... ;732589] I use a 1.5V AA battery for the blanking ...
    Fruitcake Fruitcake November 2013 Hardware
  • Timex Compute TC2048 loading problems solvedHi everybody, I've just finally fixed a TC2048 that had numerous problems. Once I'd changed all the RAM, the CPU and the ULA (surface mounted, for a…

    ... reference instead of -5V. The 1.8V is too high for the ULA ...
    Spirantho Spirantho February 2014 Hardware
  • Spectrum +2 (Grey version) RGB SCART QuestionHi Guys, A quick question for you. As the new owner of a 128K Spectrum +2 (grey version), I'm using a cable from Retro Computer Shack which tries to…

    ... theory and yes 1k is too high - something around 470 ought to ... there's a lovely clean 5v available from the regulator? So ...
    endangermice endangermice April 2014 Hardware
  • Using VAC PSU in DC deviceHaving fixed the dead Issue 3B, I began to wonder about the PSU that came with it. It was pretty obvious what had killed the poor Spectrum as the PSU…

    ... silicon integrated circuits (chips) when too high a voltage / incorrect polarity / or ... AC voltage through to the +5V line.

    And yes ...
    1024MAK 1024MAK April 2014 Hardware
  • Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…

    ... the tape motor from the 5v supply.

    ... by the +12V / -12V / -5V converter circuitry. So the current ... and overload protection etc too but I wouldn't ... wires leading to it too as they were heat ... An input voltage that is too high, or of the wrong ...
    1024MAK 1024MAK July 2014 Hardware
  • Possibly daft Harlequin composite question... :SHi; My Harlequin Rev. F works fine apart from one aspect: there's no composite out... :( I have checked continuity and the discrete components. I.…

    ... the frequency was a bit too high. While inspecting the circuitry I ... the input is "hanging" near +5V if the oscillation is missed ...
    ingo ingo September 2014 Hardware
  • Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …

    ... speccy isn't forgiving about too high a voltage. I've made ... and everything).

    The 5v regulation inside the speccy is ...
    spodula spodula October 2014 Hardware
  • Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …

    ... speccy isn't forgiving about too high a voltage. I've made ... and everything).

    The 5v regulation inside the speccy is ...
    1024MAK 1024MAK October 2014 Hardware
  • Cooking toastrack... the dreaded smellI powered up my Spectrum 128 (heatsink model) yesterday only to see what looked like an out-of-tune picture on the television. I'm using a scart adap…

    ... a regulated (smooth and constant) 5v.

    The voltage ... converter circuit then generates -5v and +12v rails from ... the 5v and whatever the unregulated ... the unregulated voltage is not too high - otherwise the oscillator circuit ...
    balford balford January 2015 Hardware
  • Grey +2 - DOA and no power lightTook a punt on a grey +2 at the weekend to be a spare. It was "untested" although so were all my other +2's which are all fine. Tried to power th…

    ... the voltage on the +5V did not go too high, it may not ...
    1024MAK 1024MAK August 2015 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    Err, 5V digital logic does not like ... if the supply voltage is too high.

    Also, be careful ...
    1024MAK 1024MAK October 2015 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... a Molex one set at 5v and the other at 12v ... question is is the mA too high or would they just draw ...
    harriusherbartio harriusherbartio February 2016 Hardware
  • Modifying Commodore datacorder's for Speccy use. Is it possible?Just wondering if it's possible to modify a Commodore datacorder for use with the Speccy, or if anyone has. My assumption is the output and input on …

    ... Output amplitude is 5V which is high enough but not ... hysteresis of 0.8V - too high for the voltage at the ... from the collector to 5V but I doubt, that ... should be connected to +5V, its collector has to ... red line directly to +5V as written before, otherwise ...
    ingo ingo May 2016 Hardware
  • ComCon interface with an auto-fire joystick is possible?I need a little advice on this one, please! I have a konix speedking, with two fire buttons and auto-fire switch. I can use it with the comcon int…

    ... the common line connects to +5V, and one where the common ... /GND. One type needs a +5V supply via an extra wire ... not included/fitted or is too high a value, the auto-fire ...
    1024MAK 1024MAK January 2017 Hardware
  • ComCon interface with an auto-fire joystick is possible?I need a little advice on this one, please! I have a konix speedking, with two fire buttons and auto-fire switch. I can use it with the comcon int…

    ... /GND. One type needs a +5V supply via an extra wire ... not included/fitted or is too high a value, the auto-fire ...
    Renegade Renegade January 2017 Hardware
  • I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…

    ... opened. I read with 1.5V across pin 16 and 18 ... that the Spectrum outputs are too high, the HDMI box is now ... . The Spectrum output is way too high.[/quote]

    When you ...
    ivanb303 ivanb303 September 2017 Hardware
<1234567…34>

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