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Search Again :: Adv Search 753 results in 0.002s
<1…10111213141516…26>
  • calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …

    ... into BASIC are 7b 49 d9 b4 56, giving (I think ...
    gasman gasman December 2012 Development
  • Altera CPLD vs Xylinx FPGAI will dig into the world of FPGA's, mainly to find something that can replace one or more GALs for my current and new projects. And it's never bad t…

    ... get away with a zener diode and resistor for level translation ...
    Winston Winston January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... will now check the schottky diode solution; I have BAT43's ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    Just tried the schottky diode solution with several resistor values.< ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... a logic gate (either a diode gate or a chip) is ...
    1024MAK 1024MAK January 2013 Hardware
  • Revive Spectrum +3 power supply(ies)Hi all, it's me again... [url]http://www.worldofspectrum.org/forums/showthread.php?t=33677[/url] In continuation from last time, I have two original…

    ... />
    i.e. 1N4001 rectifier diode?
    Crimbo Crimbo February 2013 Hardware
  • ahh..sooo close :) Spec128k+ RGB on LCD monitor helpHello, Was trying out RGB on my 128k+ and a Samsung Syncmaster 204 lcd monitor. Tried this monitor with a Genesis/Megadrive and a SNES and works real…

    ... in series's with the diode in his PDF document. That ...
    csmith csmith February 2013 Hardware
  • Replacing capacitors on a +3 PSUDoes anyone know what kind of PSU does the +2A/B +3 use? Is it a switching one? Judging from it's weight I don't think it must be.... Anyway, I just…

    ... and +12V) and a zener diode for the -12V.
    [QUOTE ...
    1024MAK 1024MAK February 2013 Hardware
  • Replacing capacitors on a +3 PSUDoes anyone know what kind of PSU does the +2A/B +3 use? Is it a switching one? Judging from it's weight I don't think it must be.... Anyway, I just…

    ... and +12V) and a zener diode for the -12V.
    No ...
    Zetr0 Zetr0 February 2013 Hardware
  • +2 (Grey) and AT/ATX PSUAny ideas on the best way to power a grey +2 board from an AT or ATX PSU? Looking at the schematic, I could do this one of two ways... 1: Bypass th…

    ... is a picture of a diode (note that it is shown ...
    1024MAK 1024MAK February 2013 Hardware
  • +2 (Grey) and AT/ATX PSUAny ideas on the best way to power a grey +2 board from an AT or ATX PSU? Looking at the schematic, I could do this one of two ways... 1: Bypass th…

    ... , my simple and cheap two diode solution in this post [url ...
    1024MAK 1024MAK February 2013 Hardware
  • Killing a Speccy with sound. :(Is it possible to do damage to a Speccy by Loading in a game too loud? I only ask as... that's what I appear to have done, on two different Speccys…

    ... limiting diodes (only a clamp diode) so a very high positive ...
    mcleod_ideafix mcleod_ideafix February 2013 Hardware
  • Killing a Speccy with sound. :(Is it possible to do damage to a Speccy by Loading in a game too loud? I only ask as... that's what I appear to have done, on two different Speccys…

    ... limiting diodes (only a clamp diode) so a very high positive ...
    Graz Graz February 2013 Hardware
  • Killing a Speccy with sound. :(Is it possible to do damage to a Speccy by Loading in a game too loud? I only ask as... that's what I appear to have done, on two different Speccys…

    ... and use a (IIRC) opto diode and load through one of ...
    nuggetreggae nuggetreggae February 2013 Hardware
  • :TECH Question for people who order componentsHi all. I am looking for a component but seem unable to find a supplier anywhere globaly that does not require tradng references and would be willing…

    ... there isn't a burned diode, failed capacitor, and whether that ...
    RetroTechie RetroTechie March 2013 Chit chat
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... it seems that a single diode can do the job!
    diode (you can use a faster ... shocktty diode) between base and emitter of ...
    mcleod_ideafix mcleod_ideafix March 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... it seems that a single diode can do the job!
    diode (you can use a faster ... shocktty diode) between base and emitter of ...
    bverstee bverstee March 2013 Hardware
  • Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…

    ... confusion. I now see the diode between U3's NAND gate ...
    zub zub March 2013 Hardware
  • Kempston Joystick on Pentagon 128As most of you know, I'm currently in the process of building a Pentagon 128, good news first, almost everything is working nicely, except for the ke…

    ... smaller.

    Moreover each diode junction decreases about 0,7 ...
    TK90XFan TK90XFan March 2013 Hardware
  • Speccy PSUI've grabbed a Speccy PSU from fleabay and it looks like a Speccy Plus PSU. After testing it with a multimeter it's kicking out 12V rather than the …

    ... load (AC side), i.e. diode bridge and capacitor, you should ... the regulation and without load (diode bridge and capacitor), then you ...
    Pierre Pierre March 2013 Hardware
  • Circumspect - A Spectrum Emulator for learningThis is a project that I have been playing around with for a while. It must be said, I tend to have problems getting things finished where hobbies a…

    ... can be changed if D1 diode is removed from PCB, a ...
    TK90XFan TK90XFan April 2013 Emulators
  • SAM Coupe - a video problemHi mates. Lately I managed to acquire a SAM Coupe 512K. There are, however, certain problems that - I thought - You might help me with, in a mome…

    ... test you can connect led diode between +5V and "RED1" pin ... set black screen and LED diode on system connector is OFF ... set red color and LED diode on system connector is ON ...
    velesoft velesoft April 2013 Hardware
  • Faulty 48kHi all, Been a long time since my last vist to the site. I have an issue with a 48k I just picked up. When I type load "" and hit enter nothing hap…

    ... socketed... Maybe its a blown diode on the EAR line or ...
    gtsamour gtsamour April 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... the use of only one diode for keeping the transistor open ...
    roko roko April 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... .6 (be)+2*0.7(diode)=) 2V.

    Greets Ingo ...
    ingo ingo April 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... .6 (be)+2*0.7(diode)=) 2V.

    Greets Ingo ...
    thomas3120 thomas3120 April 2013 Hardware
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... you have a DMM with diode test?
    Falco-F8L Falco-F8L April 2013 Hardware
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... TR4 due to a shortcutted diode in the rectifying stage. And ...
    roko roko April 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... only acts as a simple diode between its base and its ...
    ingo ingo April 2013 Hardware
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... TR4 due to a shortcutted diode in the rectifying stage. And ...
    deadeye deadeye April 2013 Hardware
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