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Search Again :: Adv Search 1000 results in 0.021s
<1…24252627282930…34>
  • The New Commode 64I'm sure this will get all commode lovers all excited: [url]http://www.commodoreusa.net/CUSA_C64.aspx[/url] It's basically a PC in a c64 bin. Wish …

    ... loads of people from all over the globe because of c64 ... C64] connected to a simple RGB display"[/B]

    Surely ... applications were both monochrome and RGB, with graphics that made you ...
    ewgf ewgf April 2011 Chit chat
  • 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…

    ... the spray paint spots all over it.

    Anyway, it ... , #D01-308113 in green.
    ULA is 6c001E-6
    modulator ...
    Spirantho Spirantho April 2011 Sinclair Miscellaneous
  • Does the usual composite mod damage Speccies?Hi people, Just browsing eBay -as you do - and I noticed this auction: [url]http://cgi.ebay.co.uk/ZX-SPECTRUM-48K-GOOD-COND-COMPOSITE-OUTPUT-SINCLAI…

    ... [B][COLOR="Blue"]Component YPbPr / RGB Scart[/COLOR][/B]

    over-compressed signal which is substandard ...
    Zetr0 Zetr0 April 2011 Hardware
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... can be pulled from the ULA.

    15A (U: R ... composite/RGB. In fact a small PCB board with the ULA piggy ... -Y/B-Y to composite / RGB encoder
    Zetr0 Zetr0 April 2011 Hardware
  • Microvitec 1431 MonitorI've been lucky enough to get my hands on a Microvitec 1431 monitor, the one with a dedicated Spetrum input. This works great on a 48k with the in…

    ... a limb, if its expecting RGB at TTL levels then it ... /48k+ is this from the ULA?

    I was posting ... a YUV encoder to either RGB (CCrCb) or even composite - it ...
    Zetr0 Zetr0 April 2011 Hardware
  • RGB to S-Video and Composite Adapterif I produced a dongle that generated composite and s-video from the RGB socket on +3 and Black +2 spectrums would anyone be interested? I'm thinkin…

    ... source for the Motorola RGB PAL/NTSC encoder the ... this will convert signals from RGB to Composte / Svideo (Y ... about $3.90 (?just over ?2 each) ([URL="http ... /> these will take the RGB signals and and a colour ... be compatible with TTL RGB signals too... I suppose ...
    Zetr0 Zetr0 May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... machine has a fully wired RGB SCART output.

    The ... the object of having an RGB input.

    [QUOTE=absinthe_boy ... probably sending a composite signal over the SCART cable. If it ... is genuinely outputting an RGB signal then the filters are ...
    guesser guesser May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... probably sending a composite signal over the SCART cable. If it ... is genuinely outputting an RGB signal then the filters are ... you it is outputting an RGB signal.

    But I ...
    absinthe_boy absinthe_boy May 2011 Hardware
  • Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …

    ... ]

    active development is over rated... when something's finished ... keep discovering new z80 or ula behaviour just to throw a ...
    guesser guesser June 2011 Emulators
  • List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…

    ... video RAM and a replacement ULA onboard making 16-Bit game ... />
    I've just checked over that old thread, yes I ... and more importantly the original ULA. Kind of like when software ...
    Rebelstar Rebelstar July 2011 New game ideas
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... . I expect it to be over 500 euro though. Kodak used ... the signals straight off the ULA always seemed the best option ...
    kphair kphair July 2011 Hardware
  • Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back I could crack open one of mine, just someon…

    ...

    It would be over a few sittings and not ... (not another make) or the ula not sure as yet
    BiNMaN BiNMaN August 2011 Sinclair Miscellaneous
  • Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back I could crack open one of mine, just someon…

    ...

    It would be over a few sittings and not ... (not another make) or the ula not sure as yet[/QUOTE ...
    kphair kphair August 2011 Sinclair Miscellaneous
  • Commodore 64 - First time trying - REVIEW & Pictures!Right, so the 2nd hand shop was selling this Commodore and accessories. So I decided to buy it, as I've never had a Commodore and this is my first ti…

    ... for the Commodore via its RGB(?) port and there is another ... /> I didn't have the RGB cable, so I couldn't ... the VIC 20 had advantages over the spectrum, but I love ...
    Alien 8 Alien 8 August 2011 Sinclair Miscellaneous
  • Spectrum 128k+ Toastrack lower Beeper level?Does anyone know the easiest way of matching the AY and beeper levels? I'm guessing perhaps the easiest thing to do is lower the beeper line rather t…

    ... (they are joined) on the ULA.

    So to ... increase the resistor by the ULA to a higher value ( ... of the middle of the ULA).

    I chose ... I made to fix the RGB output and route the ... audio through the RGB connector for the Commodore ...
    RobeeeJay RobeeeJay August 2011 Hardware
  • RGB cableI constructed an RGB cable to my +3 as per schematic on page 14 of this document here: [URL="http://mts.speccy.cz/doc/128_rgb.pdf"]http://mts.speccy.…

    ... course is a tad over the limit for RGB and I still ...
    protek protek August 2011 Hardware
  • Greetings all overheat problemsfirstly hello everybody and thanks for adding me to the forum dont know if ill be much use here but i hope so the problem i have or should i say a…

    ... hot?
    2. Check the ULA - is it getting hot?
    ULA... and still I had no ... I was changing the ROM over I noticed or I should ...
    Zetr0 Zetr0 September 2011 Hardware
  • Gauging interest: ZX EvolutionHi everyone. First of all I would like to introduce myself, since this is my first post. My name is Conrad, I'm from Vancouver, BC, Canada, and I hav…

    ... , including functionality that is in ULA in original ZX. This allows ... of the many speccy cores over without too much trouble. It ...
    TheRogue TheRogue September 2011 Announcements
  • Inlay Project DiscussionAll, It's time this project was actually started in anger. The aim of this thread is to find out what every wants from it and the standards that sh…

    ... to discuss in more detail over there.

    I must ... as TIFF, using LZW compression over using JPG even with High ... CYMK, whereas JPG is often RGB. The TIFFs I have are ... RGB though :-/

    Would TIFF ...
    Andrew Barker Andrew Barker October 2011 Support files
  • 4164 refreshHi, I remember pondering the mystery of how 4164's seem to get properly refreshed when used as video memory, and half the answer has just popped up i…

    ... /RAS signal over to the Z80 /RFSH when the ULA wasn't ... /> However the logic controlling the ULA RAS tri-state output is ... b0rked, so the ULA RAS is only disabled when ...
    csmith csmith October 2011 Hardware
  • black +2 go awayHi, All what is my problem if i have the proper voltages inside my black Spectrum +2 black (+5v+12v) in all the important IC's , and not have any vi…

    ... in this 2b (not have rgb cable at all) i scared ... first time to see broken ula (bad word) ?:)

    Greets ...
    gorski gorski October 2011 Hardware
  • Guide price for a 48k rubberkeys from you lot?My trusty Spectrum (an Issue 3, working since late 1983 or early 1984) has finally upped and carked on me :-( Now I could hit ebay or the local boot…

    ... membrane and of course the ULA. I actually had one once ... where the ROM, CPU and ULA had all gone bad!
    over the Z80 for a known ... like the joystick ports changed over for proper atari wired ones ...
    Alien 8 Alien 8 November 2011 Wanted
  • Guide price for a 48k rubberkeys from you lot?My trusty Spectrum (an Issue 3, working since late 1983 or early 1984) has finally upped and carked on me :-( Now I could hit ebay or the local boot…

    ... bootscreen, even when I swapped over the Z80 for a known ... like the joystick ports changed over for proper atari wired ones ... plus parts BUT if the ULA is dead then that part ...
    Spirantho Spirantho November 2011 Wanted
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... I've been running this over the display area of RAM ... RAMTOP and running it over the top half of ...
    I ran the program over an area of the upper ... 2 Spectrum with the problem over to a Spectrum+ and ... I've tried changing the ULA and that makes no difference ...
    Zorn Zorn December 2011 Hardware
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... the lower RAM when the ULA isn't reading from it ... RAMTOP and running the test over the upper part of lower ... column. Perhaps whatever point the ULA is in in its read ...
    Zorn Zorn December 2011 Hardware
  • Writing an emulator - how to / resourcesI'm looking for a holidays project, and I'm thinking I'd like to write a simple Spectrum emulator. I've googled plenty and read some resources, but …

    ... (if you want bus-accurate ULA behaviour, which I do, you ... experiences with emulator-projects taking over their lives.)

    Edited ...
    AY Chip AY Chip December 2011 Emulators
  • BeginnerIm having a go at fixing a spectrum which has been in the loft for 20 years and would like some advice please.... I have downloaded the 'spectrum se…

    ... quite so hot. If the ULA is installed in a socket ... replaced). Take care not to over heat the board. The 47nF ...
    Zorn Zorn January 2012 Hardware
  • speccy sound input sensivityis there a way to increase sound input sensivity of 48K spectrums? As most of us trying to transfer tape files to spectrum via our onboard soundcard…

    ... aware of not destroying the ULA. If you should use a ... it is impossible to over volt the ULA so the risk is ...
    guesser guesser January 2012 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... the post and understand the ULA plays a part in the ... was wondering since the 128k+ ULA is different from the 48k ... .
    I'm using a RGB scart to component converter and ...
    thomas3120 thomas3120 January 2012 Hardware
  • Grey +2 video output and oddities.I've been experimenting with one of the above that I acquired years ago, but had just been buried at the back of a cupboard. I've connected it up to…

    ... them to be configured for RGB video in a style more ... was) rather than for TTL RGB like the 128 and as ... only slightly quieter than the ULA/cassette generated sounds.

    Zorn Zorn January 2012 Hardware
<1…24252627282930…34>

Latest Posts

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    Paradigm Shifter on 12:49AM
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    John Elliott on April 21
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