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  • Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…

    ... have composite video input. The schematic to make S-Video or ...
    Sonic Sonic July 2007 Hardware
  • Eprom blowerdoes anyone know a site with plans for an eprom programmer project that'll blow 27C256s. I attempted to build one called Kisseprom, but the software …

    ... 's a flexible EPROM programmer schematic and photos on my website ...
    csmith csmith July 2007 Hardware
  • Opus Discovery Testers NeededHi folks, I wondered if anyone on here had access to real Opus hardware ? I've made a few disk images of the disks I have with the great help of Sim…

    Cool,

    I'll e-mail you the details. BTW do you have any Opus disks ? I can also give you instructions
    to dump them, using the SamDisk method.

    Cheers

    Andy
    Andrew Barker Andrew Barker July 2007 MIA/STP/SDP
  • Opus Discovery Testers NeededHi folks, I wondered if anyone on here had access to real Opus hardware ? I've made a few disk images of the disks I have with the great help of Sim…

    No, sorry, got the Opus of eBay, no Opus disks.

    Cheers, Simon
    hldswrth hldswrth July 2007 MIA/STP/SDP
  • Eprom blowerdoes anyone know a site with plans for an eprom programmer project that'll blow 27C256s. I attempted to build one called Kisseprom, but the software …

    ... 's a flexible EPROM programmer schematic and photos on my website ...
    zxbruno zxbruno July 2007 Hardware
  • Opus Discovery Testers NeededHi folks, I wondered if anyone on here had access to real Opus hardware ? I've made a few disk images of the disks I have with the great help of Sim…

    I also have an Opus (think its ROM is 1. ... 2 or so). No Opus disks, tho, the unit was ...
    Marcelo Marcelo July 2007 MIA/STP/SDP
  • Opus Discovery Testers NeededHi folks, I wondered if anyone on here had access to real Opus hardware ? I've made a few disk images of the disks I have with the great help of Sim…

    ... great. What config is your Opus drive. It'd be interesting ... with Simon Owen about your Opus read, as I see it ...
    Andrew Barker Andrew Barker July 2007 MIA/STP/SDP
  • Opus Discovery Testers NeededHi folks, I wondered if anyone on here had access to real Opus hardware ? I've made a few disk images of the disks I have with the great help of Sim…

    ... great. What config is your Opus drive. It'd be ... .[/quote]

    My Opus is a single drive, 720KB ... format and write on the Opus and read on the ... with Simon Owen about your Opus read, as I see ... menu entry in the uploaded Opus Read does not quit the ...
    Marcelo Marcelo August 2007 MIA/STP/SDP
  • Early Version Betadisk Manual (ie anybody have one)Folks, after lengthy excavations in my attic I have dug out my old Betadisk interface and 720K drive. However the manual has done missing. It's wa…

    BTW it would be really nice to scan both sides of the PCB. There are some people (including me ;-)) interested in the schematic of this device. Looking at your shots i see it will be extremely easy to draw if we get such scans (or highres shots).
    Sonic Sonic August 2007 Hardware
  • Sinclair +2 to VGA without VGA boxA few days ago someone in a Spanish forum mentioned that his friend claimed to have built a cable to connect his Sinclair +2 to a VGA monitor without…

    ... .net/~vanessa/hobbies/projects/scandoubler-schematic-0.2.3.png"]http ... .net/~vanessa/hobbies/projects/scandoubler-schematic-0.2.3.png[/URL ...
    Gods Gods August 2007 Sinclair Miscellaneous
  • Sinclair +2 to VGA without VGA boxA few days ago someone in a Spanish forum mentioned that his friend claimed to have built a cable to connect his Sinclair +2 to a VGA monitor without…

    ... .net/%7Evanessa/hobbies/projects/scandoubler-schematic-0.2.3.png"]http ... .net/~vanessa/hobbies/projects/scandoubler-schematic-0.2.3.png[/URL ... /> Thanks for the link! The schematic will go straight to the ...
    Marcelo Marcelo August 2007 Sinclair Miscellaneous
  • Sinclair +2 to VGA without VGA boxA few days ago someone in a Spanish forum mentioned that his friend claimed to have built a cable to connect his Sinclair +2 to a VGA monitor without…

    ... /> Thanks for the link! The schematic will go straight to the ... :.
    [/QUOTE]

    This schematic is "too simple", it never ...
    Gods Gods August 2007 Sinclair Miscellaneous
  • IC Suppliers(of ICs other than those in the big box...) Do any of the people into hardware assembly here know of any suppliers of obscure yet in-production ICs …

    ... give me some kind of schematic? It's bound to be ...
    DEATH DEATH August 2007 Hardware
  • IC Suppliers(of ICs other than those in the big box...) Do any of the people into hardware assembly here know of any suppliers of obscure yet in-production ICs …

    ... design it to do a schematic :-)

    But the principle ...
    Winston Winston August 2007 Hardware
  • IC Suppliers(of ICs other than those in the big box...) Do any of the people into hardware assembly here know of any suppliers of obscure yet in-production ICs …

    ... design it to do a schematic :-)[/B]

    And? You ...
    DEATH DEATH August 2007 Hardware
  • IC Suppliers(of ICs other than those in the big box...) Do any of the people into hardware assembly here know of any suppliers of obscure yet in-production ICs …

    If it sticks out RGB, you may be able to feed it directly to the digital side of an LCD module with just a few 74-series ICs - it wouldn't even need fancy processing.

    I'll leave the schematic as an exercise for the reader :-)
    Winston Winston August 2007 Hardware
  • Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…

    ... . Well you can redesign the schematic and replace FDC with for ...
    Sonic Sonic August 2007 Hardware
  • RGB cable problemI bought an RGB cable from a Polish dealer on Ebay for my Spectrum 128+, but I can only get an AV signal from it. I sent it back to him and he gave m…

    ... . I don?t have the schematic to see if those power ...
    Gods Gods September 2007 Hardware
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... /> There's always the waitGen schematic too.. pictures speak louder than ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... T2 - and looking at my schematic sketch, I think it explains ...
    csmith csmith September 2007 Emulators
  • Disk problemsHello Spec-chums, we are producing a disk magazine called SCENE+ (for about 10 years now) and we distribute it for various disk systems (Opus, +D, MB…

    ... , we supply the magazine on Opus Disk, MB02 Disk, +D Disk ... familiar with +D. I had Opus and now I have MB02 ... are also some problems on Opus, but I know how to ...
    Speccyman Speccyman September 2007 Emulators
  • World of Spectrum The Theme Park.Whilst musing over my computer code I got a stange idea. I think ZX Becky's Manic Miner Thread had somthing to do with it. Ok I have the game Roller…

    ... a rollercoaster will be the Opus Discovery.

    The fast ...
    Scottie_uk Scottie_uk September 2007 Chit chat
  • +3 and 3.5 Floppy Disk DriveCan anyone please help ?. I have a +3 with a faulty Floppy Drive and have a couple of spare 1.44 IDE 3.5 HD Floppy Drives. Does anybody know of a…

    ... drive without looking at a schematic, but yes, it would certainly ...
    guesser guesser September 2007 Hardware
  • I've got a divIDE. Now what?I've purchased a divIDE and after a month it's at home. What can I do now with that? I've got a 48k+, a +2B and a +3. The +2B has the original ROMs,…

    ... />
    Because I had an opus discovery 20 years ago and ...
    dekh dekh September 2007 Hardware
  • I've got a divIDE. Now what?I've purchased a divIDE and after a month it's at home. What can I do now with that? I've got a 48k+, a +2B and a +3. The +2B has the original ROMs,…

    ... />
    Because I had an opus discovery 20 years ago and ...
    MrCheese MrCheese September 2007 Hardware
  • I've got a divIDE. Now what?I've purchased a divIDE and after a month it's at home. What can I do now with that? I've got a 48k+, a +2B and a +3. The +2B has the original ROMs,…

    ... />
    Because I had an opus discovery 20 years ago and ...
    Zup Zup September 2007 Hardware
  • Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…

    ... (check the number against the schematic or look at the service ...
    Winston Winston September 2007 Hardware
  • Damn, I think I need a reflow ovenOr a reflow frying pan at least... I was just assembling an order through Farnell since I've worn out another soldering iron tip (which has actually…

    ... the datasheet handily gives a schematic for the recommended circuit. The ...
    Winston Winston September 2007 Hardware
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