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<1…16171819202122…34>
  • ULA6C001E-7 and 48K Issue 2Dear Sirs, Could you please let me know if ULA6C001E-7 or ULA6C001E-6 chip was suitable for 48K board issue 2 ? I heard some mods are neccessary…

    ... ULA6C001E-7 or ULA6C001E-6 chip was suitable for 48K board ...
    ikci ikci June 2012 Hardware
  • Retrospectiva 2012 - June '12 review[IMG]http://www.retrocomputacion.com/e107_images/newspost_images/rsp2012_banner_june.png[/IMG] One month into the competition, let?s do a quick revi…

    ... PYZA (Sinclair ZX 81)
    [*]CHIP by Osgeld (Apple II)
    Hernán Pablo Álvarez Hernán Pablo Álvarez June 2012 Announcements
  • ANN: Tipshop updated Saturday, 30 June 2012Saturday 30 June 2012 Lots of good stuff this month - so much that it was a close shave getting it all ready! * JP sent in a fixed version of the t…

    ... , Bug-Eyes , Catwalk ,
    Caveman , Chip's Challenge , Colour Clash , Costa ...
    hackersanon hackersanon June 2012 Announcements
  • Wanted: 4532 RAM chipAnyone got any of these that have not been soldered onto a board? I'm after one TMS4532-20NL3 to keep my Spectrum 48K authentic...

    Anyone got any of these that have not been soldered onto a board? I'm after one TMS4532-20NL3 to keep my Spectrum 48K authentic...
    d1n0 d1n0 July 2012 Wanted
  • 7805 on PlusD needed?I am planning a batch of PlusD interfaces. As I do not have a board design file (for e.g. Eagle), I am redesiging the PlusD schematic in Eagle myself…

    ... parallel port, that saves one chip and boosting power for a ...
    bverstee bverstee July 2012 Hardware
  • Audio frequency range from modulator?Anyone know what the frequency range of the audio that's output through the RF? In particular for the 128k/+2. I've checked the manuals but couldn'…

    ... />
    I know the AY chip is capable of producing tones ...
    FrankT FrankT July 2012 Hardware
  • Anatomy of a bad M1No, not the motorway (although at times the tarmac M1 goes about as well as this one...) But the bad M1 problem that seems to occur most with issue …

    ... Z80 is a Zilog made chip, date coded 8425 (25th week ...
    Winston Winston July 2012 Hardware
  • Replacing Upper RAM in 48KHi Folks Well, my fun continues :) After sorting the display issues with this machine I found I couldn't load software meant for 48K machines. Havin…

    ... else than remove the faulty chip, install a socket and insert ... moment but at ?4 per chip they seem a little expensive ...
    spookt spookt July 2012 Hardware
  • z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…

    ... when new had a Mostek chip).

    Finally, is there ... this test on the Mostek chip and it doesn't seem ...
    Winston Winston July 2012 Development
  • 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…

    ... defective, not responding to the chip select correctly??

    I ...
    bverstee bverstee July 2012 Hardware
  • DivIDE Plus tech support?Hi! I'm trying to fix a damaged DivIDE Plus. The thing keeps cycling in the boot screen. As there are no schematics (besides the Diwi 212 prototype…

    ... .

    But swaping that chip seems no to be enough ...
    mcleod_ideafix mcleod_ideafix July 2012 Hardware
  • ROM-elHi, I have a bunch of [URL="http://store.go4retro.com/products/ROM%252del-23128%7B47%7D23256-FLASH-ROM-Replacement.html"]these[/URL]. They are 23128…

    ... "]these[/URL]. They are 23128 chip replacements using Atmel AT49F001 flash ... idea how) and put the chip into Speccy. And somehow convince ...
    tstih tstih July 2012 Hardware
  • Happy 30th Birthday Commode.Happy Birthday to you, Happy Birthday to you, Happy Birthday dear Bread Bin, All your colours look like poo. Though your sound chip is woah, Your re…

    ... .

    Though your sound chip is woah,
    Your resolution ...
    Scottie_uk Scottie_uk August 2012 Chit chat
  • 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…

    ... of solder splatter when the chip is removed. I then ... , gently prying at the chip to remove (in this ... Spectrum ROM has two chip selects and a read pin ... unused inputs on this chip are soldered to the most ... convenient place (either the chip's Vcc or ground) - ...
    Winston Winston August 2012 Hardware
  • TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …

    ... only first 8kB of rom chip (on divide use only 8kB ... eeprom chip). Not need ZX ram.
    velesoft velesoft August 2012 Sinclair Miscellaneous
  • Simple AY library in z88dk/CI was interested to see if I could make the 128k AY chip work, and as there wasn't any library on it, I just made one for fun. It's certainly not th…

    ... could make the 128k AY chip work, and as there wasn ...
    Timmy Timmy August 2012 Development
  • Some more PC questions1. Since we ended up discussing Linux in another thread, it made me wonder is Linux really, objectively faster than Windows? I mean, can you run, say…

    ... don't just redesign the chip to support faster speeds, and ... strictly according to whether the chip is 32bit or 64bit?), CPUs ...
    ewgf ewgf August 2012 Chit chat
  • Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …

    ... yet to add an AY chip to provide sound out.
    chip, or is there anything else ...
    Johan1973 Johan1973 August 2012 Hardware
  • Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …

    ... worked (mostly). Change a RAM chip, and the display cleaned up ...
    Spirantho Spirantho August 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K ... , and a small platform flash chip to store FPGA configuration. An ... than to solder one big chip with hundreds of pins.
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • Problems with stereo kit for AYSomeone has bought a stereo kit from me to add to his 128K ZX Spectrum. Problem however is that one of the channels is a less loud than the other tw…

    ... .
    I suspect the AY chip to have a problem, but ... it still be the AY chip having a problem?

    bverstee bverstee September 2012 Hardware
  • bite your lip momentsnot sure if it's done before so I'll post (and if it has #1 searchologist will tell me , no doubt) here's a recent (and true) example that happened …

    ... " .. this woman was easily 20+ stone...

    in my mind ...
    fog fog September 2012 Chit chat
  • Replaced Z80 now a very dark screen!Today I dag out an old issue 3 that ive known for a long time has a faulty Z80 (M1 line) so I heat gunned it out, socketed it and replaced it with a …

    ... something has whilst removing the chip
    Macc Macc September 2012 Hardware
  • 8-bit gaming and geek weekend in Derby (17-18th November).Chris Snowden phoned me last night to speak about organising an 8- and 16-bit gaming event in Derby for the 17th and 18th of November, and well thing…

    ... those who can afford to chip in.

    If you ...
    Shaun.Bebbington Shaun.Bebbington September 2012 Announcements
  • NEW GAME 48K: "Crapbert Buttslut" (and 2 others games)PL title: Zbylut Owrzodzie&#324; w kamiennym, kurwa, zajebanym czarcim kr&#281;gu. ENG title: Crapbert Buttslut in the muthafuc.kin' damn stone-ci…

    ... in the muthafuc.kin' damn stone-circle of the devil.
    Yerzmyey Yerzmyey October 2012 Brand new software
  • Help me resurrecting a 128KHello to everybody. I'm really struggling along a repair of a standard 128K a friend of mine handed me over some (ok, actually a lot of) time ago. A…

    ... translate into a bad RAM chip. I've already changed the ... at about 295 KHz. AY Chip is very slightly warm to ...
    Falco-F8L Falco-F8L October 2012 Hardware
  • just late afternoon relax...and 3 months of live...1. Hardware joke [B]ANGRY SPACE INVADER [/B] [url]http://www.youtube.com/watch?v=IToay3TsEvs[/url] [LIST] [*]Dimensions : 82 x 50 mm [*] Colo…

    ... 1 Joytick interface
    [*] Main Chip:ATF1502 CPLD
    [*] Passtrough, it ...
    lotharek lotharek October 2012 Hardware
  • For Sale - Sinclair Spectrum Software - Various Titles - All Boxed OriginalsHi, Having a clearout and have the below original, boxed software for sale. Please contact me via PM if you're interested:- Arcade Hall of Fame (i…

    ... , Hunchback II)
    Make-A-Chip
    Scrabble
    Survival
    davesarah99 davesarah99 October 2012 Sales
  • Advice about Logic AnalyzerHello to everybody! First, I hope this message is posted in the appropriate board. During my more or less successful career at fixing ZXes, I alway…

    ... far from being carved in stone.
    Falco-F8L Falco-F8L October 2012 Hardware
  • [Free] BBC MasterHopefully this thread is OK with the mods, Figuring (1) its a freebie and (2) we all like preserving older hardware anyway. Right then, I need to re…

    ... with the soldered in MOS chip although this would depend if ...
    spider spider October 2012 Sales
<1…16171819202122…34>

Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
    dmsmith on April 22
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    Maroc's Other Projection on April 22
  • Goodbye Z80
    moggy on April 22
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on April 22
  • Another Birthday! The Game Boy Is 35!
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  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on April 22
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on April 22
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

HitBox

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