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<1234567…34>
  • I want to upgrade 16k to 48k - need help.I recently purchased a lovely little 16k machine (Issue 2) but I'd like to upgrade it to 48k. I'd rather not use a Ram pack as I think they are ugly…

    ... 2) but I'd like to upgrade it to 48k.

    I'd ... ugly, so I'd like to install the RAM internally.
    to 48k?

    Where can I ...
    stu232 stu232 November 2012 Hardware
  • Upgrading issue 2 to 48KWould it be possible for me to upgrade my (still fully operational) 16K issue 2 Speccy to 48K? I presume that all I would need to do would be to fit …

    ... me to upgrade my (still fully operational) 16K issue 2 Speccy to 48K? I ... presume that all I would need to do would be to ... the necessary chips for the upgrade would not be possible. Or ... would it still be possible to get hold of the necessary ...
    Sabreman64 Sabreman64 April 2008 Hardware
  • Upgrading to 48kI picked up a 16k Issue 2 Spectrum over the weekend, and I'd like to upgrade it to 48k. I've scanned an old [URL="http://www.drumfu.com/SinclairZXSp…

    ... weekend, and I'd like to upgrade it to 48k.

    I've ... .drumfu.com/SinclairZXSpectrum48kExpansion-DavidReidElectronicsNZ.zip"]upgrade guide[/URL] (2.16mb!) from ... there any caveats I need to be aware of? Cheers!
    jp jp June 2008 Hardware
  • Switching basic to 48k modeHi there, we all know that the SPECTRUM command of the 128k BASIC turns the BASIC to 48k mode. However, when executed in a program, the SPECTRUM …

    ... 128k BASIC turns the BASIC to 48k mode. However, when executed in ... /> Is there any way to switch to 48k mode without interrupting the program ... 's execuation? I'm referring to ...
    Paolo Ferraris Paolo Ferraris April 2006 Development
  • Switch from 128k BASIC to 48k BasicHello, Is there a way to start off running a program in 128k basic (so that you can use the ramdisk facilities) but then switch back down to 48k bas…

    ... br /> Is there a way to start off running a program ... then switch back down to 48k basic before you run the ... program. I would like to do this within BASIC.< ... once I switch down to 48k basic the program stops ... like my basic program to continue its operation (it ...
    saiwong saiwong May 2006 Sinclair Basic
  • Another Spectrum is brought back to life.Hi Spec-chums. I have been having bit of busy afternoon with repairs today. I've brought back to life a Panasonic Super-VHS recorder, and more intere…

    ... Speccy back to life.

    So to begin, this ... it was an improvement to the garbled flashing mess ... diagnostic rom, revealed IC10 to be faulty. I ... worlds best but no damage to the board:-

    upgrade to 48k also, but not sure ...
    Your Spec-chum Your Spec-chum August 2019 Hardware
  • Spectrum board Issue numbersWhilst cataloging my spectrums I am documenting the issue numbers of the motherboards. so far I have (all spectrum or smegtrum + Issue TWO 3 3B …

    ... by the 'dead bug' mod to the ULA timing - though a ... 16k and you could only upgrade to 48k with the mezzanine add on ... an issue1 is far harder to find - even rarer in good ...
    GP GP January 2004 Sinclair Miscellaneous
  • How can I tell what issue a speccy is from the serial number?Is it possible to know the issue of a speccy just by looking its serial number? What issue a 001-107603 could be? Is it issue 1 (i know its a 16K ma…

    They are trying to find out if its issue 1, an issue 1speccy has the hand drawn traces on the PCB, and takes a daughter board to upgrade to 48K. They are very rare and highly sought after. Basically they are trying to sniff out an undetected bargain.
    Womble Womble June 2007 Hardware
  • Do you still have the same speccie as when you were young!If so - how old is it now - and is it still working? And does it have rubber keys!?

    Yup...sure do! It's the old rubber key 16k speccy which i upgrade to 48k in about '86. Still works fine. I powered it up a couple of weeks ago and loaded up Zynaps (am sure i used to be better at that game!)
    pasty72 pasty72 June 2010 Hardware
  • Problem with Centropods?Just been trying to play Centropods on a real 16k Speccy and come up against a snag. The keys don't work! They're meant to be O and P for left and …

    ... 2 has sockets to allow for a memory upgrade to 48k. But I remember ... his didn't, he had to have a ribbon cable with ... a board attached to the edge connector. Then he ... parents then bought him a 48k+.

    I think there ...
    FrankT FrankT July 2010 Games
  • Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…

    ... parents house (2 128K+, 3 48k+), I'll add them at ... 6U

    Sinclair Spectrum 48K+
    Serial: S01-134582 Color ...


    Sinclair Spectrum 48K
    Serial: D01-230621 Color ... PCB: Issue Two (Socket Mounted Upgrade to 48K)
    Scottie_uk Scottie_uk September 2010 Sinclair Miscellaneous
  • Issue 2 Speccy faultHi Guys, I'm really hoping someone can help me with a fault that has just developed on my issue 2 speccy. After perservering for some time with usi…

    ... told me that he used to use a guy called ... . Unfortunately, Steve has decided to no longer do this which ... if you would be happy to undertake the work. I ... am somewhat attached to this machine as it was ... it used to be a 16k and had the upgrade to 48k via plugin ...
    pasty72 pasty72 December 2010 Hardware
  • 16k --> 48kI bought a zx and found out it was a 16k since when I execute PRINT PEEK 23733 I get 127 Does it mean I get a lesser model? What limitations do I h…

    ... so, is there any tutorial to upgrade to 48k if needed?
    camurso_ camurso_ December 2012 Hardware
  • 16k --> 48kI bought a zx and found out it was a 16k since when I execute PRINT PEEK 23733 I get 127 Does it mean I get a lesser model? What limitations do I h…

    ... so, is there any tutorial to upgrade to 48k if needed?[/QUOTE]

    to memory problems of a different ...
    snigfarp snigfarp December 2012 Hardware
  • Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…

    ... -80 Model III ?700
    Upgrade to 48k + two 5 1/4" floppy ... for a black and white 48k computer that ran at half ... going wrong and being able to trash my source code :)
    to confirm that bit 0 of ...
    David Jones David Jones December 2013 Development
  • Back in the day when schools had 'a' computer.I stumbled uppon this photo when looking for something completely different on-line. It got me thinking and reminiscing. Do you remember when schools…

    ... it was the right decision to get three or four less ... sent off for repair and upgrade to 48K at the same time and ... were great, and being able to check out your latest pirated ...
    Winston Winston February 2014 Chit chat
  • NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…

    ... done the following to my 16K ZX Spectrum (going to upgrade to 48K soon):
    to be rare) and/or the ... 's what I'd like to know. I know the ... *real* answer is to just get a PAL Speccy ... Well, if I'm going to spend $200 or so, I ...
    cbmeeks cbmeeks December 2015 Games
  • 48K Issue 2 Spectrum showing exactly 16KI've acquired an issue 2 and it quickly became clear that only 16K of memory is available. I've read that some early 48K Spectrums with malfunctionin…

    ... there might have been some 48K machines on which the upper ... nasty surprise for those wanting to upgrade to 48K later, opening the machine expecting ... to find nice empty sockets!
    < ...
    balford balford August 2016 Hardware
  • The day you unboxed your brand new SpectrumI was at junior school for much of the Spectrum's heyday, yet never owned a computer in that time. I was fascinated by computers back then, they were…

    ... think Dixons had a lot to answer for with this one ... for Xmas 1981. (I seem to remember commenting that it wasn ... version, but I got an upgrade to 48k for my birthday a few ...
    Grunaki Grunaki September 2016 Games
  • 16k to 48K upgradeHi everyone I was just wondering if anybody knows if it is possible to upgrade a 16k Speccy to a 48k with the required RAM chips. If this is possibl…

    Hi everyone

    I was just wondering if anybody knows if it is possible to upgrade a 16k Speccy to a 48k with the required RAM chips. If this is possible where would i get them from.

    thanks a lot

    Benammi
    benammiswift benammiswift September 2014 Hardware
  • 16-48k memory upgradesince yesterday i am the proud owner again of a spectrum in excellent condition, boxed, etc. it was my first computer back in '82 as well, so it's ni…

    ... well, so it's nice to own one again.

    to expand it to 48k. it's a 3b ...
    ruud ruud May 2004 Sinclair Miscellaneous
  • Memory upgradeHi! I bought a 16K rubber key Spectrum. It's said in the box and memory test program also said it's 16K machine. Strange thing is that there is yell…

    ... with text 48K (i have few 48K machines with ... soldering needed) for memory upgrade. There is also 4 ... and put some chips to the four empty sockets ... i have to do if i upgrade 16K-->48K? Motherboard ... What might be explanation to this 48K sticker? Machine is almost ...
    lillaolle64 lillaolle64 October 2010 Hardware
  • List of 128 only games and 128 games that were different to the 48k versions.Can anyone think of any 128 games that were different to 48k and i'm not talking about music enhancments but more graphical,or speed or bigger maps e…

    ... 128 games that were different to 48k and i'm not talking ... etc.
    One that springs to mind was Yie ar Kung ... version and played much closer to the arcade version.
    spainboy spainboy July 2013 Games
  • Upgrade Windows8 to 8.1 without store ?To cut a long story short: I upgraded last year from 7pro to 8pro. However the Store and the apps ie Weather etc never worked, they just open and cl…

    To cut a long story short:< ... upgraded last year from 7pro to 8pro. However the Store and ... /> I was hoping I could upgrade to 8.1 without the Store ... from what I can gather to 'fix' my app issue I ... 'd need to do a refresh although iirc ...
    spider spider October 2013 Chit chat
  • Plus board to 48kThis will sound daft to some no doubt, but is it ok to put a + mainboard into a 48k rubber keys one and expect the keys to work correctly? I have a …

    This will sound daft to some no doubt, but is ... it ok to put a + mainboard into a 48k rubber keys ... one and expect the keys to work ... stripping down my working +'s to test it. :-D
    owdeuk owdeuk July 2014 Hardware
  • Spectrum Ram UpgradeHi, I am looking to upgrade my 16K Spectrum to 48K. I have some 41256 dram chips from an old QL memory expansion, can the Spectrum us the large…

    ... />
    I am looking to upgrade my 16K Spectrum to 48K.

    I ...
    doubledecca doubledecca August 2015 Hardware
  • 22K resistor - Upgrading to 48K+Hi. I fitted a 22k 0.25w resistor to allow the extra keys, STOP etc. I'm not showing a change, these keys do not function with the extra options. I…

    ... a 22k 0.25w resistor to allow the extra keys, STOP ... kit, I'm following the upgrade manual. The manual did not ... />
    Also I'd prefer to remove the original resistor and ...
    lesoleil70 lesoleil70 November 2015 Hardware
  • How pass 128K to 48K BASIC whitout need to write by hand??¿?Hi all I have a 48K BASIC program that work only with 48K ROM If i do that in a 128K 1) load "prog.bas" 2) put the command SPECTRUM t…

    ... br /> I have a 48K BASIC program that work only ... with 48K ROM

    to change to 128K
    3) ... Is there a way to do this SPECTRUM command or ... />
    10 command to change to 128K
    20 REM ...
    maeloterkim maeloterkim January 2020 Sinclair Basic
  • Z80 file: 128K to 48KHow change a 128K Z80 file (a BASIC program) in a "real" 48K Z80 file? If I use the keyword "spectrum" in 128K and save the Z80 file, it is always a …

    How change a 128K Z80 file (a BASIC program) in a "real" 48K Z80 file? If I use the keyword "spectrum" in 128K and save the Z80 file, it is always a 128K file!
    wilko0070 wilko0070 November 2003 Emulators
  • Update this forum to latest phpBB?I saw on phpBB site that the latest version is v2.0.7 and 1.4.4 is rather old. I'm not sure if it worth upgrading(security....). I'm just wounderin…

    ... if it's time to do a upgrade to this forum, new coulortheme ...
    Golfareninsweden Golfareninsweden March 2004 Sinclair Miscellaneous
<1234567…34>

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