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Search Again :: Adv Search 1000 results in 0.028s
<1234567…34>
  • Introducing Z-Exemplar - a ZX Spectrum inspired retro shooterHello everyone, I'm a huge spectrum fan from back in the day. My formative years were spent hunched over my rubber keyboard, aligning my tape head…

    ... Denton Designs or Microsphere. In short, Spectrum games hold a very dear ... owes its aesthetic to the Spectrum's colour palette and character ... so unfortunately this is a Spectrum inspired game that will not ... to remain faithful to the Spectrum look and feel. Yes, ...
    Suminell Suminell July 2015 Announcements
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ... the short side of the block = 5V

    On the Spectrum it ...
    Dr BEEP Dr BEEP June 2003 Sinclair Miscellaneous
  • Kempston ConfusionSomehow, I just can't get this straight on my mind :-O I guess my neurons are playing tricks on me. ~X( Kemspton interfaces allow joysticks …

    ... interface that happens to supply +5V on one of those lines ... FIRE it then shorts +5V to ground and crashes the Speccy.[/quote ... second button shorts the +5V to gnd. Spectrum didn't crash though ...
    zPasi zPasi November 2015 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... /> It works fine with the spectrum, but could I expect it ... , A11, A12, A13, A14, A15, +5V, Ground, A0, RD and IOREQ.
    Renegade Renegade January 2018 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... /> It works fine with the spectrum, but could I expect it ... , A11, A12, A13, A14, A15, +5V, Ground, A0, RD and IOREQ.
    Black_Cat Black_Cat January 2018 Hardware
  • ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3&nbsp;ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…

    ... from Pin16 of the ULA, 5V, ground and a video output wire ...
    retrogamemart retrogamemart June 2015 Hardware
  • 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…

    ... it for newer, 5V version?
    But Spectrum 48K has not RGB ...
    piters piters March 2007 Sinclair Miscellaneous
  • +3 external floppyI'd like to connect 3,5" PC floppy drive (NEC) to ZX Spectrum +3 (with diode for RDY). Here are questions: 1) It seems the PC floppy uses just +5V, …

    thanks for quick reply.
    Can I take +5V directly from Spectrum PSU then?
    I'd like to avoid second power adapter.
    orange orange March 2007 Hardware
  • +3 external floppyI'd like to connect 3,5" PC floppy drive (NEC) to ZX Spectrum +3 (with diode for RDY). Here are questions: 1) It seems the PC floppy uses just +5V, …

    ... .
    Can I take +5V directly from Spectrum PSU then?
    I ... PSU is much more than 5V...

    Cheapest what you ...
    piters piters March 2007 Hardware
  • 128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …

    ... />
    Place an additional 5V regulator (7805) inside the divIDE ... +5V connection on edge connctor should be cut. This way spectrum ... . The heat inside the spectrum would be lower after plugging ... + and so the 5V regulator inside spectrum has lower power to ...
    ingo ingo January 2009 Hardware
  • Issue 2 Spectrum overheating keyboard membraneI think I have an issue 2 ZX Spectrum. I don't want to take it apart again as I had problems replacing the keyboard membrane. With Interface 1 conne…

    ... />
    a) The internal +5V regulator is a simple, robust ... help.
    c) The Spectrum's internal cooling plate is ... : hook up regulated +5V directly to Spectrum internals (through edge connector ... rather avoid opening up your Spectrum again. You have probably ...
    RetroTechie RetroTechie February 2009 Hardware
  • Issue 2 Spectrum overheating keyboard membraneI think I have an issue 2 ZX Spectrum. I don't want to take it apart again as I had problems replacing the keyboard membrane. With Interface 1 conne…

    ... ) Drastical: hook up regulated +5V directly to Spectrum internals (through edge connector ...
    RST#08 RST#08 February 2009 Hardware
  • issue 2 board c34 getting hotHi All, Can anyone help with c34 getting hot very quickly? I`ve got an issue 2 board, there is no `buzz` from coil. yet the spectrum initalises to co…

    ...
    feed it with 5V= outside the Spectrum as an experiment.
    roko roko March 2009 Hardware
  • Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…

    ... I power on the zx spectrum, it make a noise like ... IC23 Pin 5 to 5V. The Zx Spectrum [B]did not initialize ...
    gibs gibs March 2010 Hardware
  • WoS healthHey guys, Just wondering why the WoS was updated so much time along (15-sept). All good with Mr. Martijn I hope. I'm stalking the forums for a few y…

    ... 're going over old ground.

    Short answer is no, long ...
    rich_chandler rich_chandler December 2013 Chit chat
  • ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3&nbsp;ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…

    ... also connected to the necessary 5v, ground and signal.Cheers  
    retrogamemart retrogamemart June 2015 Hardware
  • Opus Discovery with a HarlequinHi all I am getting a Harlequin and the 128k toaster rack mod but I have an opus discovery and a spectrum +, the + is dead so going to use the cas…

    It can lead the 9V to the Spectrum and it could also get the +/- 12V and the -5V from the Spectrum. But I do not know that.
    ingo ingo March 2016 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…

    ... connected to mains earth/ground.

    ZX Spectrum computers also have ... one (or both) of the Spectrum and the TV are powered ... to ground contacts, using a multimeter, with the TV and ZX Spectrum ... outer ground contact of the Ear or Mic on the ZX Spectrum ...
    1024MAK 1024MAK March 2018 Hardware
  • Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…

    ... you’re just running a Spectrum on its own. The 7805 ... happy with anything form 7.5V and up (and will be ... most efficient at 7.5V). However, the Spectrum passes the “unregulated” input ...
    Ast_A_Moore Ast_A_Moore September 2019 Hardware
  • Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…

    ... you’re just running a Spectrum on its own. The ... with anything form 7.5V and up (and will ... most efficient at 7.5V). However, the Spectrum passes the “unregulated” ... rail (instead using the +5V rail, e.g. joystick ... between +9V and +10.5V on the (nominal) +9V ...
    1024MAK 1024MAK September 2019 Hardware
  • Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…

    ... -2 rather than a Spectrum because I already have ... - there MUST be a short or an open somewhere. The ... between the xtal traces and ground planes. Looking at various ... breakout board... showed a ground plane under the crystal. ... 3.3v chip with 5v tolerant inputs).
    Winston Winston November 2007 Hardware
  • Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…

    ...
    1. Remove the 16K Spectrum ROM
    2. Replace it ... cry. This new 64K Spectrum - how the hell does ... unused address line always at +5v.

    2. ... the chip's Vcc or ground) - CMOS ICs should always ... is powered by soldering short wires to the Vcc ...
    Winston Winston August 2012 Hardware
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ... !) that's aquired his first Spectrum. Since my modern TV doesn ... ://www.sintech-shop.de/home/spectrum-products.htm[/url]) which gives ... I use?

    2. Ground. That's the easy one ... box case.

    3. +5V. This can supposedly be taken ...
    Bacon Bacon June 2003 Sinclair Miscellaneous
  • Spectrum +2B on a PC PSUHello, Id like to attach my Spectrum +2B to a PC Power Supply. Im currently using an ATX power supply with my Amiga CD32. I searched on here for so…

    ... /> Id like to attach my Spectrum +2B to a PC Power ... /> I found pinouts for the Spectrum +2B power socket, there are ... +5V points, two +12V points, one -12V point and one Ground point ... ground to the ground of a molex connector, then both +5V to the 5v ...
    chaoticjelly chaoticjelly January 2006 Hardware
  • Spectrum games for saleAnyone want any of the following? If so, please make me an offer. Pole Position Groucho (no inlay) Wizard`s Lair Universal Hero Storm Bringer Splat!…

    ... /> Beach Head
    Motos
    Spectrum Zap 2
    Ometron
    Southern Belle
    Stagecoach
    Short Circuit
    Bat Man
    Cybo Run
    Ground Attack
    Timegate
    Scuba ...
    mpaulj mpaulj October 2006 Sales
  • Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …

    ... br /> [quote]
    Today this Spectrum arrived and I could show ... rather than giving a +5v signal for 1, or ... right parts of the Spectrum's motherboard. Since I ... power (5 volts and ground). With the black cable, ... have been an internal short circuit that made the ...
    Winston Winston October 2010 Hardware
  • Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …

    ... on the other Issue 2 Spectrum.

    A ... working Issue 2.
    -5V - 80K Ohms and rising. ... the working one.
    5V - 1.5K Ohms. This ... of the DRAMs. 5V was present, -5V wasn't and 12V ... whether either has any self-short.

    That' ...
    Zorn Zorn December 2011 Hardware
  • Spectrum +3 FavourCan a kind soul with a multimeter and a +3 measure the resistance on the power socket between the 5V and the ground? I have a dead +3 that only has 0…

    ... power socket between the 5V and the ground? I have a dead ... the 5V rail internally when powered up. Am suspecting an short somewhere ...
    Womble Womble June 2012 Hardware
  • Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …

    My Spectrum is "almost" booting, just when ... be missing it's -5V, the +12V, +5V are ok

    Spectrum issue 3

    Any ...
    OttO OttO November 2013 Hardware
  • ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …

    ... /> I recently purchased a 48K Spectrum from eBay. On powering up ... present and correct except for -5V which measures at -0.18V ... cause me a loss of -5V anyway). All diodes function correctly ... % clear to me how the -5V is derived, but I'm ...
    Leeorg Leeorg August 2014 Hardware
<1234567…34>

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