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<1…16171819202122…34>
  • Wanted: ZX81 (boxed)What's a fair price for a boxed ZX81 with 16K Ram Pack please? I'm going to try and buy one but I'm not familiar with the second hand market at the m…

    What's a fair price for a boxed ZX81 with 16K Ram Pack please? I'm going to try and buy one but I'm not familiar with the second hand market at the moment.
    sj_howlett sj_howlett June 2014 Sales
  • ZX81 chiclet keyboard on eBayJust thought I would let you know I have a zx81 chiclet keyboard up on auction so if your interested here it is... [url]http://www.ebay.co.uk/itm/33…

    Just thought I would let you know I have a zx81 chiclet keyboard up on auction so if your interested here it is...

    [url]http://www.ebay.co.uk/itm/331242544697?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649[/url]
    morcar morcar June 2014 Sales
  • Strange ZX81 PCBHello I took apart my non-working ZX81 to attempt to fix it and I noticed that the resistors and diodes were soldered a bit strange. The wires are c…

    ... apart my non-working ZX81 to attempt to fix ... I was looking for the ZX81 schematic online when I ... across the photo of a ZX81 PCB which has resistors ... many photos of other ZX81 boards and they all ...

    My other (working) ZX81 PCB looks like the PCB ...
    memrah memrah June 2014 Hardware
  • Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.

    How do you go about changing PAPER and BORDER colours from machine code?

    I've forgotten the system variables for border and paper.
    daveysludge daveysludge July 2014 Development
  • ZX81 Kit build with picsSaw this over on reddit - someone's taken one of the unsold ZX81 kits and built it up, taking some pictures along the way :) [URL="http://m.imgur.co…

    Saw this over on reddit - someone's taken one of the unsold ZX81 kits and built it up, taking some pictures along the way :)

    [URL="http://m.imgur.com/a/gvv8O?gallery"]Link[/URL]

    B
    balford balford July 2014 Sinclair Miscellaneous
  • Faulty(?) ZX81 plus ZX8-CCB boardHello, I have an apparently faulty ZX81 with a ZX8-CCB video out board for sale. It was working last time I had it put together, around this time las…

    ... , I have an apparently faulty ZX81 with a ZX8-CCB video ... of other projects and the ZX81 is not one of my ...
    pmsr pmsr July 2014 Sales
  • conditional assembly in pasmoHi, I'm having some trouble figuring out how to use conditional assembly in pasmo. I want to write some code that targets a number of different platf…

    ... . I want to write some code that targets a number of ... :

    [code]
    zxspectrum EQU 1
    zx81 EQU 0
    IF zx81 = 1
    ;do something else
    ENDIF
    [/code]
    utz utz August 2014 Development
  • ZX81 Composite mod on the cheap?Hi i'm looking for a good and cheap way to do a composite mod on a broken ZX81 that I have. I know there is a ZXvid on sellmyretro, but the price is …

    Hi i'm looking for a good and cheap way to do a composite mod on a broken ZX81 that I have. I know there is a ZXvid on sellmyretro, but the price is a bit to high to me.
    So I look for a cheaper way to do the job ;-)
    Reinier Reinier August 2014 Hardware
  • Face-Off: ZX Spectrum vs. Commodore 64I found an old oldish, but very informed and interesting article on the ole Spectrum vs. Commodore 64 argument. The article explains the technical d…

    ... article on the ole Spectrum vs. Commodore 64 argument.

    vs-commodore-64[/url]
    sj_howlett sj_howlett August 2014 Sinclair Miscellaneous
  • ZX81 - worn red logoHi, Just brought a ZX81 back from the dead with a new membrane/keyboard. The case is great now, but the only thing letting it down is the ZX81 logo, …

    Hi,
    Just brought a ZX81 back from the dead with ... letting it down is the ZX81 logo, red is worn, link ... touch up paint for the ZX81? Pantone/Ral?

    Thanks ... not breaking any rules asking ZX81 questions on a Spectrum forum ...
    lesoleil70 lesoleil70 August 2014 Hardware
  • ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…

    ... guys

    Got my ZX81 this morning its in excellent ... , how much is a working ZX81 with original PSU & 16k ...
    dreamscape dreamscape August 2014 Sinclair Miscellaneous
  • For Sale?? Offers? Spectrum ZX81, PSU & 16k RAMHi all I've got a ZX81, 16k RAM pack & original PSU here I purchased sadly it won't work with my TV and I don't want to hack it apart to make compos…

    ... />
    I've got a ZX81, 16k RAM pack & original ...
    dreamscape dreamscape August 2014 Sales
  • ZX81 1981 "ISS 3" Motherboard??I took my ZX81 apart today never seen inside one before so had a look and saw a mainboard I've never seen here or online before? [IMG]http://s13.pos…

    I took my ZX81 apart today never seen inside ...
    dreamscape dreamscape August 2014 Hardware
  • Question for ZX81 GurusI have an ISSUE 1 ZX81 with a 2C184E ULA. If I ever need to change it, can I use one of the newer 2C210E ULAs? If I can, are there any other mods th…

    I have an ISSUE 1 ZX81 with a 2C184E ULA. If I ever need to change it, can I use one of the newer 2C210E ULAs?

    If I can, are there any other mods that need done at the same time for it to work?
    rune rune August 2014 Hardware
  • Spectrum & ZX81 PSU Strange VoltagesHi all I've just refurbished my ZX spectrum PSU after i accidently broke one of the wires i soldered the joints to the PCB nicely and all seems to b…

    ... out 13.4V and my ZX81 PSU is putting out 14 ...
    dreamscape dreamscape August 2014 Hardware
  • Machine Code in 30 minutes - car gameWotcha folks, 30 years on and I'm still struggling with Machine Code. I'm going through the 30-minute tutorial on the Chuntey blog and it's all made…

    ... 'm still struggling with Machine Code. I'm going through the ... example Assembly is this:
    [code]
    ld bc,65278 ;read ...
    dec l
    dontmove[/code]

    Unfortunately, there doesn ... me as I know the code works!

    ...you're ...
    Tobo Tobo August 2014 Development
  • Wanted: ZX81 boxed with 16k RAM PackI'm looking for a clean, working and good condition ZX81 with original Sinclair 16K RAM Pack. Would prefer if it was in a box. Oh and if you have 3D …

    I'm looking for a clean, working and good condition ZX81 with original Sinclair 16K RAM Pack. Would prefer if it was in a box. Oh and if you have 3D Monster Maze that would be the icing on the cake, thanks.
    sj_howlett sj_howlett August 2014 Wanted
  • Is my ZX81 RAM Pack OK?Hi guys I've just taken my 16k RAM pack apart to give it a clean inside and out and i noticed these strange burn type marks!? [IMG]http://s7.postim…

    ... before connecting it to my ZX81...
    dreamscape dreamscape August 2014 Hardware
  • ZX81 Unwell... TV or The ZX81??Hi all I finally got a RF cable today so i could test my ZX81 at last... sadly it's not great news although I'm hopeful that it's the TV...? All I'…

    ... so i could test my ZX81 at last... sadly it's ...
    dreamscape dreamscape August 2014 Hardware
  • ZX81 ULA questionRecently, I got a nice bundle of kit comprising of a ZX81, Memotech keyboard, PSU and brand new 16K Sinclair Memory pack. The ZX81 has a ULA with no…

    ... of kit comprising of a ZX81, Memotech keyboard, PSU and brand ... Memory pack.

    The ZX81 has a ULA with no ...
    rune rune August 2014 Hardware
  • Spectrum stuff for sale (ZX81, RAM pack, Tapes... etc)Selling the following: [IMG]http://s26.postimg.org/uk0ntdsq1/IMG_20140902_205737.jpg[/IMG] [IMG]http://s26.postimg.org/ronkmioq1/IMG_20140902_20575…

    ... .jpg[/IMG]

    ZX81 (needs new keyboard membrane, the ... are all original too)
    ZX81 16k RAM pack - Working< ... Spectrum tapes (see pic)
    ZX81 PSU good working order

    ZX81 pics:

    [IMG]http ...
    dreamscape dreamscape September 2014 Sales
  • Unkatris, tetris clone for 1K ZX81Download: [url]http://sinclairzxworld.com/download/file.php?id=2053[/url] Source code: [url]http://sourceforge.net/p/emuscriptoria/code/HEAD/tree/te…

    ... =2053[/url]

    Source code:
    [url]http://sourceforge.net ... /p/emuscriptoria/code/HEAD/tree/tetris/[/url]
    antoniovillena antoniovillena September 2014 Brand new software
  • Wanted: ZX81 caseJust found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full worki…

    Just found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full working order.

    Cheers guys
    DEATH DEATH September 2014 Wanted
  • Game of Life.Last year (I think) or maybe the year before, I entered a Game of Life simulator into the CSS CGC compo but for the Sinclair ZX81. I decided to port…

    ... compo but for the Sinclair ZX81.

    I decided to ... port the ZX81 codez recently to an 8 ... Sinclair BASIC as well.
    [code]
    1 RANDOMIZE 0: BORDER ... d: GO TO 6
    [/code]
    Firstly I should point ...
    Shaun.Bebbington Shaun.Bebbington September 2014 Sinclair Basic
  • ZX81 and Analogue TVsI recently bought a really nice ZX81 on ebay in amazing condition, but I'm having issues tuning in an old analogue TV to lock onto the signal. I und…

    ... recently bought a really nice ZX81 on ebay in amazing condition ... doing this without modding the ZX81, but the TV I'm ... so I'm confident the ZX81 is working fine, but I ... TV?

    Modding the ZX81 is not an option.
    sj_howlett sj_howlett September 2014 Hardware
  • "Zombi Terror" for ZX81 16kHi everybody! Our last game "Zombi Terror" is now available on Sinclair ZX81. The port was coded by our friend Paulo Silva (Nitrofurano) and myself …

    ... " is now available on Sinclair ZX81. The port was coded by ...
    Baron Ashler Baron Ashler September 2014 Brand new software
  • ZX81 internal RAM board?Just a quick question to Zorn (amongst others). What would the issues be with fitting one of Zorn's RAM boards into an unexpanded ZX81? Seems to me…

    ... RAM boards into an unexpanded ZX81? Seems to me that a ...
    DEATH DEATH October 2014 Hardware
  • Help needed with a bit of code...My minds gone blank again I'm afraid, I'm having trouble with this routine that loads variables into memory then calls the corresponding routine. Th…

    ... /> Thanks in advance...

    [CODE]ld b,3
    ld ... 3 bytes prior to start[/CODE]
    daveysludge daveysludge October 2014 Development
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    How do you LOAD "" CODE from machine code?

    ... the ROM's LOAD "" CODE routine, nothing fancy headerless ... 16K worth of 128 code in bank 6?

    [CODE]ld a,64 ; white ...
    ;LOAD 128 bank 6 code

    ;LOAD main ...
    daveysludge daveysludge October 2014 Development
  • Coming soon: Pets vs Aliens!This is just a sneak peak showing the loading screen for [B]Pets vs Aliens[/B], an upcoming "story-driven" Speccy game featuring absolutely astonishi…

    ... loading screen for [B]Pets vs Aliens[/B], an upcoming "story ...
    Einar Saukas Einar Saukas October 2014 Announcements
<1…16171819202122…34>

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