World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.013s
<1…14151617181920…34>
  • Spectrum 128 malfunctioning with DIVMMCI recently got myself a spectrum 128 (toastrack) and a DIVMMC card so I could load games from it. It all works fine until it has warmed up and then t…

    ... such as the Z80, the RAM, the ROM and the 74LSxxx ... heat.

    With an expansion circuit board plugged in, the ...
    1024MAK 1024MAK June 2014 Hardware
  • Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…

    ... 16MB of RAM on the TS2068 via the BEU (Bus Expansion Unit).
    chev chev July 2014 Development
  • Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…

    ... 16MB of RAM on the TS2068 via the BEU (Bus Expansion Unit ...
    Paddy Coleman Paddy Coleman July 2014 Development
  • Powering a Spectrum with 5v?I live in the States, but I'm originally from England. My original Spectrum is still at my mum's house in the UK, and I was thinking of asking her t…

    ... to 12v to power the ram?

    This did seem ... interfaces that plug in the expansion port / edge-connector won't ... Spectrum (I also had an expansion system hanging out the back ...
    1024MAK 1024MAK August 2014 Hardware
  • New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…

    ... would need to use some RAM in order to write to ... 2 (or compatible, e.g. RAM Turbo), or by constructing a ... subset of the Spectrum?s expansion bus (there is no circuitry ...
    Fruitcake Fruitcake August 2014 Hardware
  • New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…

    ... 2 (or compatible, e.g. RAM Turbo), or by constructing a ... subset of the Spectrum?s expansion bus (there is no circuitry ...
    chev chev August 2014 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 …

    ... no -12V DC on the expansion port / edge-connector. It is ... the pads where your 4116 RAM was, as per [URL="http ...
    1024MAK 1024MAK August 2014 Hardware
  • Seriously weird Issue 2 issue... (RAM-related)Hi guys; I have been trying to fix up my Issue 2 and have run across a bizarre issue that I haven't seen elsewhere in the forums. Hopefully one of …

    ... /> 1. The other (original) upper RAM chips are 4532-20NL3. The ... into the expansion port such as a Kempston or RAM Turbo interface ...
    Trafferth Trafferth August 2014 Hardware
  • Sinclair's Cancelled ProjectsDoes anybody have anymore info on any of these projects or are there any old Sinclair engineers on the Spectrum scene that could shed a little more l…

    ... to be a 512K memory expansion for the QL, but before ... and the price of regular RAM chips had dropped to the ...
    Matt_B Matt_B September 2014 Development
  • Sinclair Today...Based on your experiences and knowledge of how Sinclair Research operated back in the 1980s, if they were to announce a new Sinclair branded PC or La…

    ... , no cost change to the RAM (it's already two sets ... , and with a RAM memory and disk drive expansion, it makes the ...
    1024MAK 1024MAK September 2014 Hardware
  • 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…

    ... special hardware, just 16k of RAM.
    [*]Second are the ... data from the currently addressed RAM location.
    [*]Third, there ... RAM to be connected to the ROM bus, not the expansion ... Swatosch ZX81 site[/URL] (includes RAM pack modification details)
    < ...
    1024MAK 1024MAK October 2014 Hardware
  • Preferred setup for a ZX Spectrum 48KHi! I got me a ZX Spectrum 48K for about 1.5 year ago. Feels good to have one, I really like the look of it! Except for the computer itself I have …

    ... is?[/QUOTE]

    The expansion port is the full address ... as you'd connect the RAM to internally :smile:
    guesser guesser November 2014 Sinclair Miscellaneous
  • Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…

    ... but in conjunction with bankswitched expansion ram. If you then did DMA ... among peripherals and the expansion ram you could do it without ...
    Alcoholics Anonymous Alcoholics Anonymous November 2014 Hardware
  • Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…

    ... but in conjunction with bankswitched expansion ram. If you then did ... DMA among peripherals and the expansion ram you could do it ... there is only a single RAM chip so you just ... to the on-chip block RAM it could be useful ... be DMA'd into RAM so that the CPU ...
    Winston Winston November 2014 Hardware
  • PCB thicknessHas anyone here got a micrometer and access to a 48k and a 128k grey? Im convinced the greys have a thinner pcb which would explain certain devices a…

    ... MTX500) and a 32k byte expansion RAM board, giving a total of ... 3.5 inch floppy disk expansion (SDX) when supplied with a ...
    1024MAK 1024MAK November 2014 Hardware
  • Monkey Island On Speccy...I would love to see Monkey Island on the speccy...think it can be done...not as much detail or graphics...but along the same story lines.... What ot…

    ... can use all the available RAM for the program (It can ... the Speccy? Straight into the expansion socket? Sounds like a kickstarter ...
    retrogod retrogod December 2014 New game ideas
  • Ways to identify spectrum issues with out opening them?A good while ago, I'm sure I saw some posts on here about how to identify what issue speccy you have by looking in the expansion port to see what hea…

    Shouldn't you be able to identify issue 5/6 48k spectrums by looking through the expansion slot. The upper ram addressing chips have been combined into a ULA size chip.
    Rorschak Rorschak December 2014 Hardware
  • Patching RST routines?Hi all, I am quite unexperienced regarding the Speccy and today I made another attempt to make a concept for a SymbOS port to this machine. There is…

    ... family of machines by using RAM in the lower page.
    expansion port.

    It all ...
    guesser guesser December 2014 Development
  • Monkey Island On Speccy...I would love to see Monkey Island on the speccy...think it can be done...not as much detail or graphics...but along the same story lines.... What ot…

    ... as much as 512KB of RAM and one or two floppy ... up to 4.5MB RAM with an expansion pack. The floppy drives ...
    retrogod retrogod December 2014 New game ideas
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... Kempston and a single-joystick Ram Electronics interface, and I suspect ... four separate one meg external RAM packs to it, but you ... of a load of faulty RAM chips is another matter entirely ... it does have a vertical expansion port, so you could add ...
    zub zub June 2015 Emulators
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... it is HOME RAM, EXROM, cartridge memory or bus expansion unit memory ... contended, whether it is HOME RAM, EXROM, cartridge memory or bus ...
    Fred Fred June 2015 Hardware
  • Ziloghino - Arduino like Z80 systemHi, I found this board on Kickstarter, the Ziloghuino. It's an Arduino like Z80 system extensible with hardware shields. With some effort maybe s…

    ... like Sinclair used for the expansion port and don't clamp ... a big help in avoiding 'RAM pack wobble' type issues.
    RetroTechie RetroTechie July 2015 Hardware
  • Basic SAVE and ZX Printer supportIs there a list of emulators that support any of these two features (basic SAVE and print to printer port)? Is there a emulator comparison some wh…

    ... to the printer via the expansion slot, using the OUT command ... 't extract assembly listings from RAM in the form of source ...
    Dunny Dunny July 2015 Emulators
  • Basic SAVE and ZX Printer supportIs there a list of emulators that support any of these two features (basic SAVE and print to printer port)? Is there a emulator comparison some wh…

    ... to the printer via the expansion slot, using the OUT command ... 't extract assembly listings from RAM in the form of source ...
    RMartins RMartins July 2015 Emulators
  • DiscipleI have got a Disciple Disk Interface, with no manual, software. I have downloaded the PDF Manual from WOS, which says I have to load the operating…

    ... current border colour is, which RAM page is in, which ... and /M1 signals on the expansion bus. /ROMCS is for ... The DISCiPLE's ROM and RAM can be swapped using I ... sets ROM at 0x0000 and RAM at 0x2000 (when the ... /> OUT 0x7B, "anything" sets RAM at 0x0000 and ROM at ...
    zub zub September 2015 Hardware
  • Spectrom interface ?Hi all, I got 2 of this devices ... :) [img]http://forest.no-ip.org/wos/spectrom/20151006_151428.jpg[/img] [img]http://forest.no-ip.org/wos/sp…

    ... with what is filling spectrum ram and what is start address ... Chip Select) line of the expansion port up (to +5V). So ... happens, the external ROM (or RAM) temporarily occupies the lowest 16 ... 16 K to the RAM, jumps to a RAM location, triggers the ...
    zPasi zPasi October 2015 Hardware
  • Help with Spectrum 128k reparationHi! I have the following symptoms with a 128k unit version 6U - On power on, black and white bars (one char width each), white background - Once po…

    ... />
    * I bought brand new ram chips
    * Flashed an EPROM ... (with the RAM test in this page: http ... (I checked it on the expansion connector)

    And all ... , of course.

    The RAM test does not seem to ...
    kwyjibo kwyjibo November 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... expansion / interface that can take a ROM/EPROM, a ROM based RAM ...
    1024MAK 1024MAK December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... Zorn has said, test lower RAM, it's all you can ... expansion / interface that can take a ROM/EPROM, a ROM based RAM ... firmware? Also, I have a RAM turbo interface which takes ROM ...
    memrah memrah December 2015 Hardware
  • Jiiira's Sparrow LITEHi All, Just for info .. :) big eprom, cheap 32KB ram and etc. i don't know specification .. :) https://youtu.be/NbI7E1aebrM modern speccy .. …

    ... Speccies result from dying old RAM chips (lower 16K in particular ... 48K case though.
    * Internal expansion connector.
    * Looks like [b ...
    RetroTechie RetroTechie December 2015 Hardware
<1…14151617181920…34>

Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21

HitBox

Word Docs Hits
ram 12.6K 21.4K
expansion 1.9K 2.3K

Related Threads

  • OT: Removing the metal shield of an Amiga A501 ram expansionBefore I bugger off to an Amiga forum, I just wondered if anyone here has removed the metal shield off an A501 (to swap out a leaky battery) without …
  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code:<br /> <br /> [CODE]<br /> ;; ram-check<br /> L11DA: LD H,D ; Transfer the top value to the HL registe…
  • Joystick Interface with built in RAM expansion?Is there such a thing as a RAM pack with a joystick interface built in?
  • DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…
  • Sinclair ZX81 16k Ram ExpansionHi ,<br /> If anyone has a working one of these in the UK for sale, please PM me with the cost inc shipping.<br /> <br /> Thanks
  • Free Faulty Original Sinclair ZX81 16k Ram expansionI bought this on ebay, was found to be faulty, when plugged in the screen froze and the "K" vanished. <br /> <br /> Thanks to a forum member I now h…
  • Vulcan expansion pack expansion - now with even more contentDownload link here:<br /> <br /> https://drive.google.com/file/d/0BxhNrntzyp5hMXBLdVFlVHFZRTQ/view?usp=sharing<br /> <br /> (REMEMBER: READ THE R…
  • MGT Sam Coupe BIG JOBLOT!!! 22 Disks, 3 manuals, 1MB Ram Expansion + Midi Cable!Direclty from my personal Sinclair collection that never end...<br /> <br /> ...MGT Sam Coupe BIG JOBLOT!!! 22 Disks, 3 manuals, 1MB Ram Expansion …
  • How do I know the RAM size?Just left my parents after cleaning out my pile of old stuff in their basement.<br /> Know what I found? My old ZX Spectrum.... Those were the days!<…
  • Sound and IO expansion not in hardware pageI saw this on ebay:<br /> [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&amp;item=2045474851"]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&…

Related Searches

  • rom to ram
  • modern ram
  • disable uper ram
  • disable upper ram
  • opus rom ram size
  • opus rom 8k ram 2k
  • opus rom 8kb ram 2kb
  • ram upgrade
  • shadow ram
  • page 7 shadow ram
  • z88dk free ram
  • 2a ram
  • ram speed
  • ram speed replacement
  • ram test
  • add more ram to 48k spectrum
  • ram 150ns
  • 150ns upper ram
  • reset initialise ram
  • ram memory expansion

Copyright © 2024 World of Spectrum